I have a couple Anker Astro 10,000mAh batteries I use with my Xoom (required a similar mod to this one), my Razr, bluetooth headsets and speakers and even a portable fan I use camping. It's an awesome battery with a TON of uses. In fact Anker has several batteries that are very useful, do a search for them on Amazon (and I'm NOT affiliated with them in anyway other than I use several of their products)
It has two USB out ports (5V/2A - one optimized for Samsung, one for iPads, both work with most devices), and a port for charging devices that need 12v or 9v (selectable with a switch on the side, both 2A). The power ratings come from the manufacturer, I haven't personally tested to confirm but based off of charge times I would guess they're correct.
This battery will fully recharge the tablet around 1.5 times (while powering it). And it will also charge the dock/tablet although I haven't tested to what capacity it will charge both while they're connected. My guess would be it will likely charge them fully once. Here's what you need and how to make it work with the TF700 (and TF201 etc...):
Pics of the battery:
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Once you have the battery you'll want to contact the seller and tell them you need an extra cable (one comes with the battery along with several adapter tips for netbooks/DVD player/etc and a USB cable with more adapter tips for phones/ipods/etc.) unless you'll only be using it with your Infinity (we'll be destroying the cable here, but you can use the other end to build another adapter for another device!). The seller is awesome and they sent me an extra cable for free. Here's a pic of the cable we're talking about:
ANKER CABLE (comes with the battery)
Here's a pic of the final cable adapter we're making (most of you wont need to read below, you'll get it from the pics alone):
FINAL ADAPTER CABLE
And here's a pic of the final setup:
EVERYTHING CONNECTED
Here's a link to all the pics in high res: http://s60.photobucket.com/albums/h17/tyhurd/Anker Battery Hack/
What you'll need:
1. The Anker Astro battery
2. The Anker battery cable (included with the battery)
3. A USB cable with a female end. I used an extra OTG cable I had.
4. Electric tape
5. Cable heat shrink or other medium to seal it all up (I actually used some epoxy to make it stiff so it would help avoid causing a short from movement because I didn't use solder)
6. Optional soldering gun and solder (I didn't use this I just twisted the wires together, but for more durability you'll probably want this).
What to do:
1. Cut an end off the Anker cable above with however much length you'll want. I did it really short (too short IMO, I would suggest going a bit longer)
2. Cut the female end off the USB cable. Again however much length you'll want.
3. Peel back/cut off some of the outer shielding on the ends of both cables.
4. Connect red to red and black to black - easy... Either solder them together or twist. Be sure to use a little electrical tape to ensure neither wire comes in contact with the other.
5. Seal up your new adapter. If you're using heat shrink be sure to put it on before step 4.
Set the Anker battery to 12V, plug everything together and viola! You can now charge on the go! I travel a lot and did a similar mod to charge my Xoom and it worked great. Now even with HEAVY use you can get a full day out of your devices.
Here's the breakdown on voltage of the original charger vs this charger:
Asus charger: 15V @ 1.2A = 18 watts
Anker charger: 12V @ 2A = 24 watts
I know some of you are thinking why not just set the Anker to 9V as 9V @ 2A is 18 watts, same as the Asus wall charger? It just doesn't provide enough voltage to trigger charging on the tablet. The internal charging circuit will ensure there's no damage to the battery with the higher wattage. This is also the same as using a car charger for the tablet (12V @ 2A)...
This mod has tons of potential for other of devices too... Enjoy!
If you found this helpful click the thanks button below! Thanks!
Very cool. For those interested, I did a quick search on amazon.ca (Canada) and the 10k mAh battery was about $50 - not bad at all.
Do the USB ports on the Anker charge it at all or does it only work via DC out?
RNGuy said:
Very cool. For those interested, I did a quick search on amazon.ca (Canada) and the 10k mAh battery was about $50 - not bad at all.
Do the USB ports on the Anker charge it at all or does it only work via DC out?
Click to expand...
Click to collapse
The one and only drawback I can find is that the battery itself uses a proprietary charger to charge (the smallest hole on the right in the end view pic). It's 12V/1A in, so I'm sure it would be easy to make a car charger for it but no luck charging it via USB... I actually modded a Xoom charger (12v/1.5A) to charge it faster. Not good for the battery I know (but really not too bad) and I also liked that the Xoom's charger wall prongs fold in making it more portable!
just curious ..........if by 'butchering' this way ..WILL IT WORK with Infinity + DOCK ??? as I have my tablet with DOCK !
be ncie to know if anyone can chime in after trying this mod with A DOCK connected
thanks in advance
RNGuy said:
Do the USB ports on the Anker charge it at all or does it only work via DC out?
Click to expand...
Click to collapse
That's a very good question indeed. Any answer ?
I think it can charge it as well as it's possible to charge the TF700 with a regular USB cable plugged in a laptop (for instance), although, this is known to be really slow... (but it may be due to the limited current available through a regular USB port, 500mA.
RNGuy said:
Very cool. For those interested, I did a quick search on amazon.ca (Canada) and the 10k mAh battery was about $50 - not bad at all.
Do the USB ports on the Anker charge it at all or does it only work via DC out?
Click to expand...
Click to collapse
I think I misinterpreted you the first time. I was thinking you were asking if the Anker charged via USB but after reading your question again I see you were asking if the USB on the Anker will charge the tablet and the answer is no. Not enough voltage to trigger charging.
Ausmike said:
just curious ..........if by 'butchering' this way ..WILL IT WORK with Infinity + DOCK ??? as I have my tablet with DOCK !
be ncie to know if anyone can chime in after trying this mod with A DOCK connected
thanks in advance
Click to expand...
Click to collapse
It's not really "butchering", but yes IT WILL WORK with the DOCK... I have the DOCK and can confirm it does work! And why are we YELLING? lol
Howdy folks,
First I can confirm this works wonderfully but I made one change. I was able to accomplish the same results without cutting up any wires. By using the provided adapters you can get output to a male USB. From that point just grabbed a $6 USB gender adapter (male to female) and it works like a charm.
Thank you so much for this suggestion should be a life saver for my coming trip to Japan.
Sent from my Galaxy Nexus using Tapatalk 2
BritCrit said:
Howdy folks,
First I can confirm this works wonderfully but I made one change. I was able to accomplish the same results without cutting up any wires. By using the provided adapters you can get output to a male USB. From that point just grabbed a $6 USB gender adapter (male to female) and it works like a charm.
Thank you so much for this suggestion should be a life saver for my coming trip to Japan.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
What adapter did you use? The only adapters that came with my units (and I have 2) that plug into the DC cable are laptop type, no USB type. Could you be so kind as to post a pic of the setup? Thanks!!
Photos of setup using USB Female gender adapter
Here's a photo of the adapters included with the Anker battery. The beige item is the usb adapter.
You'll want to connect the anker cable -> anker adapter (red tip) -> Anker male USB -> Ugly beige USB adapter -> Asus USB cord
Connected it should look like this:
And proof that it works (set to 12v per instructions above). I've tested it in both tablet and with dock.
Let me know if you have any questions.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
BritCrit said:
Photos of setup using USB Female gender adapter
Here's a photo of the adapters included with the Anker battery. The beige item is the usb adapter.
You'll want to connect the anker cable -> anker adapter (red tip) -> Anker male USB -> Ugly beige USB adapter -> Asus USB cord
Connected it should look like this:
And proof that it works (set to 12v per instructions above). I've tested it in both tablet and with dock.
Let me know if you have any questions.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
Click to expand...
Click to collapse
Got it, WAY easier than making a cable!!! LOL. Thanks!! (I forgot all about the coiled cord. Got these batteries a few months before the Infinity. Much longer setup, but much easier too)
works perfectly
Bought, this battery and did this mod thanks for the info. Great portable charger for tf700.
Hmm, I bought the battery pack, a 5.5x2.1mm DC pigtail and a prime charging cable. When using the prime cable with usb 3.0 extension cable it could charge my infinity on the AC adapter. I used that cable, cut the wires, soldered the red to red and black to black, left the other two untouched. Now when hooked up to my anker charger, it will flash "charging" for a second, then it goes away. The green light on the side of the dock is on, but it is not charged. When plugging directly into the tablet, it does nothing. Wonder if i'm just not getting enough voltage.
Should one of the other wires be tied into the positive as well? I imagine the other two were for data stream.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
NickS VR4 said:
Hmm, I bought the battery pack, a 5.5x2.1mm DC pigtail and a prime charging cable. When using the prime cable with usb 3.0 extension cable it could charge my infinity on the AC adapter. I used that cable, cut the wires, soldered the red to red and black to black, left the other two untouched. Now when hooked up to my anker charger, it will flash "charging" for a second, then it goes away. The green light on the side of the dock is on, but it is not charged. When plugging directly into the tablet, it does nothing. Wonder if i'm just not getting enough voltage.
Should one of the other wires be tied into the positive as well? I imagine the other two were for data stream.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Click to expand...
Click to collapse
Only need the two wires. Is the switch on the side of the anker set to 12v?
AspenMan said:
Only need the two wires. Is the switch on the side of the anker set to 12v?
Click to expand...
Click to collapse
It is set to 12v, yes. The battery levels were at around 96% for dock and 92% on the tablet. Not sure if it just kept shutting the charging mode off because of that.
Just tried it now, with 91% dock and 86% tablet, and it is charging like it is supposed to. I guess it wont kick on charging mode while battery level are higher.
Another option, also fairly cheaper if you look around, would be to use a usb y splitter cable, such as this one, According to the Amazon page on Anker Astro 10000, Each USB port puts out .5V, thus should be 1V. The Infinity charger outputs 1.2V. Thus, it should charge, just a little slower.
There is another option, but doesn't have as much stored powered, would be, if you can find one, is a Duracell/Xantrex Powersource Mobile 100. I have the Duracell. It's a power converter for a 100W, but has 4000mAh battery storage. It has a AC plug port and two usb ports. I use this at NFL games with my portable TV (7" LCD) that only has a rechargeable battery that only lasts about 2 to 2.5 hours; games are 3 or more hours. Plus, I use it to charge my mobile phone at the game. Unfortunately, the product has been discontinued.
lovekeiiy said:
Another option, also fairly cheaper if you look around, would be to use a usb y splitter cable, such as this one, According to the Amazon page on Anker Astro 10000, Each USB port puts out .5V, thus should be 1V. The Infinity charger outputs 1.2V. Thus, it should charge, just a little slower.
There is another option, but doesn't have as much stored powered, would be, if you can find one, is a Duracell/Xantrex Powersource Mobile 100. I have the Duracell. It's a power converter for a 100W, but has 4000mAh battery storage. It has a AC plug port and two usb ports. I use this at NFL games with my portable TV (7" LCD) that only has a rechargeable battery that only lasts about 2 to 2.5 hours; games are 3 or more hours. Plus, I use it to charge my mobile phone at the game. Unfortunately, the product has been discontinued.
Click to expand...
Click to collapse
Not how electricity works.
Standard USB outputs 5v and 0.5a. Amps can be stacked. Volts cant (at least not that simply). Also if you convert 5v to 15v it would reduce amps by at least 2/3 not accounting for loss.
Sent from my Galaxy Nexus using xda app-developers app
BritCrit said:
Photos of setup using USB Female gender adapter
Here's a photo of the adapters included with the Anker battery. The beige item is the usb adapter.
You'll want to connect the anker cable -> anker adapter (red tip) -> Anker male USB -> Ugly beige USB adapter -> Asus USB cord
Connected it should look like this:
And proof that it works (set to 12v per instructions above). I've tested it in both tablet and with dock.
Let me know if you have any questions.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
Click to expand...
Click to collapse
Hi,
My first post here
I already have astro3. and TF700. Wondering if this is the correct adapter that will work in the final connection?
monoprice dot com /products/product.asp?c_id=103&cp_id=10314&cs_id=1031401&p_id=362&seq=1&format=2
Just wondering if this thread would get more visibility if it were under the "accessories" category. Or is our Infinity community still so small that it doesn't really matter?
BTW, like the setup and I can see how that would be really useful on trips.
Yeah headed Tokyo from Texas tomorrow, I'll let you know how it works out
I agree the accessories thread would be a better place for it
Sent from my Galaxy Nexus using Tapatalk 2
Related
I have tried using a cheap car-lighter-USB adapter, which has 1000mAh written on it... but it still doesn't do the job. (GPS+Data+Screen on)...
The battery does not charge, but it looses power.
Well, I only payed £2.90 for it (transport included) on e-bay...
I am looking for a more expensive one, but I need to make sure it does the job...
Can anyone recommend one?
Later update:
My cheap charger from e-bay, started smelling of burnt plastic. When I opened it up, I sau that the spring that was pushing the Vcc contact was touching the plastic case, which started to melt...
I had one sent to me by mobiles.co.uk which is labelled as a carphonewarehouse one.
Seems to charge it OK when using copilot.
i bought the original HTC car charger for 20euros, and i think its the best (although a bit expensive), since the charger is really small and neat with white led HTC letters, and you can remove the usb to micro usb cable to use it in a pc (i have never tried that though).
I looked for a standalone cable and usb adapter and the price would be almost identical with the OEM charger, so i think its the best deal.
Cheers,
T.
thats the charger:
htc cc-c200
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Maplins (in the UK) do a very small USB car charger that works well in my Audi A5 and my Mazda MX-5. Good tight fit and the packaging states input of 12-24V DC and output of 5V DC at 1 Amp.
Maplins code A50JK. Currently on special offer at £5.99 each instead of £8.99.
Thanks for that. Have you used it with a Desire?
For now I've ordered a miniUSB-female -> USB female adapater, and will try to use it with the car-charger of my SatNav which has a miniUSB plug... and outputs 1.2A
I don't think the higher current will damage the battery, especially that the phone will be always ON. Anybody knows different?
zonkkk said:
Thanks for that. Have you used it with a Desire?
Click to expand...
Click to collapse
Yes although not with GPS etc switched on (I have Satnav built in on both cars). I just need Bluetooth on for hands free.
zonkkk said:
Thanks for that. Have you used it with a Desire?
For now I've ordered a miniUSB-female -> USB female adapater, and will try to use it with the car-charger of my SatNav which has a miniUSB plug... and outputs 1.2A
I don't think the higher current will damage the battery, especially that the phone will be always ON. Anybody knows different?
Click to expand...
Click to collapse
You should always buy ones that can supply higher currents. If a charger/power supply can supply higher currents (at the same voltage as required), it is a good thing. Thats why most of the time, more expensive ones can supply higher currents and cheaper ones cant cope when the current demand is high.
It is the voltage difference you should avoid. But if the voltage is same ie 5 volts in this case, then just go for one that can supply higher current.
hope that helps.
The reason I was asking is because I remember reading somewhere that charging a battery with low current is healthier for the battery, so I am not too keen on using something that outputs higher current than the original charger...
REB1 said:
Maplins (in the UK) do a very small USB car charger that works well in my Audi A5 and my Mazda MX-5. Good tight fit and the packaging states input of 12-24V DC and output of 5V DC at 1 Amp.
Maplins code A50JK. Currently on special offer at £5.99 each instead of £8.99.
Click to expand...
Click to collapse
I have one of these, but got it from ebay for £3 Just need a right-angled usb to micro usb cable now to make it even more low profile.
Si
Hey was just looking on ebay and came across this
sorry i just found out i cant post links but its ebay number 170450658461.
It says its rated at 5v +/-5% and 1.5A so should be plenty, also worth noting this is a dual charger, so i can charge my phone and perhaps have my proper sat av going if i want or ipod or what have you.
might order it for £2.30 delivered
I bought this one from local Maplin store last night
http://www.maplin.co.uk/Module.aspx?ModuleNo=267947
Has a retractable MINIusb lead and a standard usb socket to plug your micro lead into. Can charge 2 devices at once too.
Seems to work fine although not had a chance to test it with the phone under constant drain (satnav) yet. 1A output should be enough though.
zzleezz said:
I bought this one from local Maplin store last night
http://www.maplin.co.uk/Module.aspx?ModuleNo=267947
Has a retractable MINIusb lead and a standard usb socket to plug your micro lead into. Can charge 2 devices at once too.
Seems to work fine although not had a chance to test it with the phone under constant drain (satnav) yet. 1A output should be enough though.
Click to expand...
Click to collapse
Is the retractable miniusb lead able to plug directly ito the desire? if it is, do you think its long enough?
Afc, the retractable lead is miniusb not micro so no it won't. I've heard there are mini to micro converters so that would let you use it that way, not searched for them yet so no idea where from.
The retractable lead is 75cm long. I suppose it depends where your accessory socket is and where you mount your phone in your car. For me that would be fine, socket is just at bottom of dash and phone mounted on a vent holder (cheapo Tesco one for now) in my ferrari enzo (its the one that looks a lot like a Ford focus )
I am using my original Satnav car charger (rated 1.2 A).
This has a miniUSB connector, so I bought a miniUsb female -> USB female adaptor, and shorted the data lines together. And I am using a USB to micro USB cable to connect to the phone.
Now it works like a charm. Charges about 5% of battery for every 20 minutes of use with GPS + NAVIGATION + DATA + SCREEN FULL BRIGHTNESS on.
I don't know why I didn't think about it before buying the cheap car-charger with a USB port from ebay (the one that started melting, and wasn't even charging properly with everything on even if it was rated 1000mA).
Maybe this may be of use to someone...
Update on the maplin charger I mentioned earlier. 40 min journey the battery lost 5% charge going to buy a converter for my tomtom charger I think. Another 10 quid down the drain.
zzleezz said:
Update on the maplin charger I mentioned earlier. 40 min journey the battery lost 5% charge going to buy a converter for my tomtom charger I think. Another 10 quid down the drain.
Click to expand...
Click to collapse
Yep, can confirm this charger does NOT supply enough to even keep the Desire running while using Sat Nav :-(
Kev
hi i've got this usb car charger, is this strong enough to charge the phone with the screen and gps on
USB Car Charger
kevwright said:
Yep, can confirm this charger does NOT supply enough to even keep the Desire running while using Sat Nav :-(
Kev
Click to expand...
Click to collapse
If you short the data pins on the Maplin charger then it provides enough charge to keep everything going.
It's actually the phone that's the culprit. It will only take 500ma when on charge via usb, but will take about 900ma when on ac. By shorting the data pins on the charger you fool the phone in to believing it is on AC charge, so it takes more from the charger. If you're going to short the data pins on a charger you must make sure its rated at least 1A.
I have the Maplin charger (the one that Reb1 posted an image of on page 1) and can confirm that shorting the data pins works.
Aaahhh, interesting post!
Have soldered the centre pins on my maplin charger (the dual one with the retractable lead) will test it as soon as I need to drive some distance.
Assuming it works thanks very much
*update*
Soldered the 2 centre connections together on the back of the usb socket in my car charger. Took it for a 30 minute triip this evening, had navigation software running, music playing, gps, WiFi, 3g - the lot. Gained 10% charge when I arrived! Stunned and very gratefully for the advice, thanks mate
zzleezz said:
Aaahhh, interesting post!
Have soldered the centre pins on my maplin charger (the dual one with the retractable lead) will test it as soon as I need to drive some distance.
Assuming it works thanks very much
*update*
Soldered the 2 centre connections together on the back of the usb socket in my car charger. Took it for a 30 minute triip this evening, had navigation software running, music playing, gps, WiFi, 3g - the lot. Gained 10% charge when I arrived! Stunned and very gratefully for the advice, thanks mate
Click to expand...
Click to collapse
Hhhm didn't realise that editing my last post would not mark it as unread. Important info above that I'm sure people would like to read so bumping with this post.
Sorry if this has already been asked and answered - the XDA Search has been down for the past couple of hours and I just want to be sure I'm not missing anything here..
From what I can see in the reviews, the TF does *not* have any sort of charging indicator / LED on it - correct? I read that there will be one on the keyboard dock - but there is not one on the tablet.
So what are you guys doing? Just plugging it in and letting it sit overnight to give it its full charge - and then going by the battery indicator when you turn it on?
I've got my new TF sitting next to me here, and I'm trying to be a good dad to it by charging it up first before using it - but not having any sort of an indicator on it - I have no idea if it's doing anything or not!!!
Screw it - I think I"m gonna unplug it and start futzing it with it! Battery be damned!!
btw - damn this charge cable is SHORT!!
No charging LED that I can see on mine, and yea, I hate this stupid charging cable, guess you can always get a USB extension cable.
pogul said:
Sorry if this has already been asked and answered - the XDA Search has been down for the past couple of hours and I just want to be sure I'm not missing anything here..
From what I can see in the reviews, the TF does *not* have any sort of charging indicator / LED on it - correct? I read that there will be one on the keyboard dock - but there is not one on the tablet.
So what are you guys doing? Just plugging it in and letting it sit overnight to give it its full charge - and then going by the battery indicator when you turn it on?
I've got my new TF sitting next to me here, and I'm trying to be a good dad to it by charging it up first before using it - but not having any sort of an indicator on it - I have no idea if it's doing anything or not!!!
Screw it - I think I"m gonna unplug it and start futzing it with it! Battery be damned!!
btw - damn this charge cable is SHORT!!
Click to expand...
Click to collapse
Monoprice has the USB 3.0 extension cables, but they won't be in stock until tomorrow (their estimate). When they are back in stock, a 6ft extension will run you about $7-$8 shipped.
I plan to order a few cables from Monoprice with a mini hdmi to hdmi cable.
Does it need to be usb 3.0 or will usb 2.0 do the trick ?
dfin13 said:
Monoprice has the USB 3.0 extension cables, but they won't be in stock until tomorrow (their estimate). When they are back in stock, a 6ft extension will run you about $7-$8 shipped.
Click to expand...
Click to collapse
USB 2 cables don't supply enough power.
It will charge, but I think it has to be off and it'd be really slow going.
But usb 2.0 extension cable will work fine with the supplied charger? Also would you not require a usb 2.0 to usb 3.0 converter ?
Asus really overlook the inclusion of an charging indicator. Or, they are trying to make more $$$ on the keyboard/dock?
jake21 said:
But usb 2.0 extension cable will work fine with the supplied charger? Also would you not require a usb 2.0 to usb 3.0 converter ?
Click to expand...
Click to collapse
Has anyone got some definitve experience on USB2 vs USB3 for charging and/or with an extension cable. The whole charging process and adaptor are making me a little nervous in general.
there is no reason to invest in USB 3 gear when all you really need is higher amperage, wich you often get from stand-alone chargers like the one supplied or you can buy in stores (just check that the output is 1000mah or more, 2000 mah is desired for effective charging).
The reason you might want to use a usb 3 PORT (cable makes no diffrence) is that usb 3 deliver more juice then usb 2, but unless it is a dedicated charger port that can supply 2000mah+ charge the port still require you to have the pad either off or stand by and even then charging will take ages.
Consider this, the supplied charger delivers 2000mah on 5v and my HTC charger to my phone has 1000mah @ 5v. Compared to the standard 550mah on a singel non-charger adapted USB port on a computer.
The TF charger output at 15V @ 1.2A with using the supplied USB3.0 cable. If you use a USB2.0 extension cable, it will drop the charging voltage down to 5V. You will need a USB3.0 extension cable
eli.kennedy said:
Has anyone got some definitve experience on USB2 vs USB3 for charging and/or with an extension cable. The whole charging process and adaptor are making me a little nervous in general.
Click to expand...
Click to collapse
There's a thread about this issue here. Several USB 3.0 cables have been found to work, but not for everyone. I have this one that I received today. It charged both the tab and the dock with the wall charger. I've also got a Tripp Lite that's worked for others on the way in the case the other didn't work.
it has to be USB 3.0 extension since the tablet recognizes the extra pin which is what lets it charge at the full rate.
jmkhenka said:
there is no reason to invest in USB 3 gear when all you really need is higher amperage, wich you often get from stand-alone chargers like the one supplied or you can buy in stores (just check that the output is 1000mah or more, 2000 mah is desired for effective charging).
The reason you might want to use a usb 3 PORT (cable makes no diffrence) is that usb 3 deliver more juice then usb 2, but unless it is a dedicated charger port that can supply 2000mah+ charge the port still require you to have the pad either off or stand by and even then charging will take ages.
Consider this, the supplied charger delivers 2000mah on 5v and my HTC charger to my phone has 1000mah @ 5v. Compared to the standard 550mah on a singel non-charger adapted USB port on a computer.
Click to expand...
Click to collapse
Not quite correct. The charger senses a gnd connection on pin 7 of the USB 3.0 connector and delivers 15V @2a to the TF and or Dock. There are only 4 conductors in a USB 2.0 Cable. so the charger only delivers 5V as it does not see the gnd on pin 7. For all the technical details see the thread started by DevCake where the voltages and currents have actually been measured. A 5V 20A charger will not be as good as one with 11-15V at about 2A as the charger is not a constant current charger but a power source for a charge controller ( controlling the current) in the TF.
I appreciate that it is a slightly older thread and not sure if what I'm about to post is already known by TF owners but here goes anyway.
The discussion has moved on to cables but the threqad title is about a charging indicator. I've discovered that the battery icon in the bottom RH corner has a lightning symbol through it when it is being charged.
Sorry if it's old news but I've only had my TF one week and thought other users might not be aware
Really wish they would have put in a fancy multicolor LED somewhere on the housing but we can't win them all. Even the Nook Color had an LED on the cable itself.
I'm going on a 13 hour flight as well as will be travelling for 2 weeks around Japan so thought I'd nab one of those usb battery chargers that I can carry around with me for a recharge.
However due to the funky 12V 2A charging requirements all the ones on Amazon and ebay list that it won't work with the asus transformer series.
Anyone know of one that does work?
Portable Power Pack for TF700
sbdags said:
I'm going on a 13 hour flight as well as will be travelling for 2 weeks around Japan so thought I'd nab one of those usb battery chargers that I can carry around with me for a recharge.
However due to the funky 12V 2A charging requirements all the ones on Amazon and ebay list that it won't work with the asus transformer series.
Anyone know of one that does work?
Click to expand...
Click to collapse
I recently had a 9hr + 2hr flight for a cruise and I was looking for the same thing. I ended up buying the Anker Astro3 10000mAh from Amazon
I found that the Infinity will last about 6 to 7 hours watching movies in HD from a microSD card just using the internal battery. The power-pack is good for one full charge of the TF700 battery, so it should keep you going for about 12 hours. When you add in eating, playing with the in-flight entertainment system, and short nap time, you should be all set.
I would recommend looking at a Airline Headphone Adapter as well and bring your own headphones. My flight had the old-style airplane jacks. We did get free earbuds but they were really bad and didn't fit well.
Here is the info from my product review:
I bought this to expand the run-time of a ASUS Transformer Infinity TF700 for a recent cruise trip.
The ASUS Infinity tablet has unique charging requirements. It will charge using USB, but it takes a very long time (about 10 hours). The OEM charger puts out 15V and will charge the tablet fully in about 2 hours, but no power pack supports this voltage. However, the ASUS Infinity also supports charging at 12V, which is available on the Astro3 10000mAh.
To use this with the ASUS Infinity you will need to connect several included connectors together and purchase a USB A FEMALE TO FEMALE adapter.
- Slide the DC power switch to 12v
- Use the included 5.5/2.1mm 2' cable to connect to the DC output port
- Connect the red tip adapter to the other end of the 5.5/2.1mm cable
- Connect the coiled USB cable to the red tip adapter
- Connect the USB A FEMALE TO FEMALE adapter to male USB A end of the coiled USB cable
- Connect the OEM ASUS Infinity USB cable to the other end of the USB A FEMALE TO FEMALE adapter
- Turn on the power pack by pressing on the power button
An alternative to buying a USB A FEMALE TO FEMALE adapter (and using the red tip adapter and USB coiled cable) is to:
- Find and buy a "USB A To DC 5.5/2.1mm Power Supply Extension Cable Cord Female 2.1". It has a DC Interface size: female 5.5*2.1mm and USB Interface: USB 2.0 female. (Note: This is not currently available on Amazon, I found this on eBay)
- This frees up the USB coiled adapter to be used with other USB devices.
The Astro3 10000mAh:
- will charge the ASUS Infinity fully once
- It takes about 2 hours to re-charge with the included DC adapter.
- It shuts itself off once there is no power draw (i.e. when your devices is fully charged)
- It is about the size and weight of a smartphone. As a result, it isn't as portable as it's smaller cousins, but it packs a lot of juice
Overall, this is a solid portable power pack.
Brilliant - exactly what I needed to know. Thank you! :good:
sbdags said:
I'm going on a 13 hour flight as well as will be travelling for 2 weeks around Japan so thought I'd nab one of those usb battery chargers that I can carry around with me for a recharge.
However due to the funky 12V 2A charging requirements all the ones on Amazon and ebay list that it won't work with the asus transformer series.
Anyone know of one that does work?
Click to expand...
Click to collapse
More choices (15000-16000)
http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias=aps&field-keywords=Power Bank 15000mAh
http://www.ebay.com/itm/251162049133?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649
buhohitr said:
More choices (15000-16000)
Click to expand...
Click to collapse
The higher powered battery banks are also an option.
The ATC do support 12v, but they would have to be researched to find out what is needed to connect the TF700 to them. In addition, the ATC have yet to be reviewed on Amazon, so you would be taking a chance on the quality of the power pack. Of course, Amazon stands behind their customers so if it didn't work out you could always return it. I usually find it easier to let someone else beta test...
The ebay link is to a power pack that doesn't support 12v, so that would not work.
anyone try one of these? I noticed it in the prime fourms. kinda pricy and heavy at 3lbs but could be nice.
sejat zero-1 http://www.sejats.com/Solar-Charger_c12.htm $90
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Here is how I made my own.
http://forum.xda-developers.com/showpost.php?p=21930625&postcount=55
Anyone got any other experiences with battery packs? I'm having similar troubles looking for options. I just want to see how much choice I have.
I'm trying to convince myself why I would buy a wireless charger... I just don't see the reasoning because there is still a wire got G to the charging pad that the phone has to sit on... So I guess it just saves me the small hassle of having to plug and unplug my phone but is that worth $50... So my question is why did u or why are u planning on buying one... Am I missing something?
Sent from my Nexus 5 using xda app-developers app
Because it's cool
Sent from my Nexus 5 using Tapatalk
Lol I was hoping for just a little more...
Sent from my Nexus 5 using xda app-developers app
Because its the most convenient thing ever....
I dislike the "official" n5 wireless charger, Instead I have the samsung S4 wireless charger, its a tray a littler larger than the n5 you just set it on.... anytime I'm at my desk I just set it on the charger. It might not seem like much, buts its well well worth it if you have an extra 50 bucks.
cables2590 said:
Lol I was hoping for just a little more...
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
No... That's it... Try it and you'll want one
Sent from my Nexus 5 using Tapatalk
Ben36 said:
No... That's it... Try it and you'll want one
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
I might try it just to feel cool lol...
starnostar said:
Because its the most convenient thing ever....
I dislike the "official" n5 wireless charger, Instead I have the samsung S4 wireless charger, its a tray a littler larger than the n5 you just set it on.... anytime I'm at my desk I just set it on the charger. It might not seem like much, buts its well well worth it if you have an extra 50 bucks.
Click to expand...
Click to collapse
See I would want one that's big enough to charge my phone and my nexus 7... It would be sitting on my nightstand since I don't have a desk job but I don't know I might try one anyways... Do u know of one that's big enough for the both?
Sent from my Nexus 5 using xda app-developers app
cables2590 said:
I'm trying to convince myself why I would buy a wireless charger... I just don't see the reasoning because there is still a wire got G to the charging pad that the phone has to sit on... So I guess it just saves me the small hassle of having to plug and unplug my phone but is that worth $50... So my question is why did u or why are u planning on buying one... Am I missing something?
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
For me the reason is practical (the reason why I am planning). I use my phone as an alarm clock so my phone must be plugged in all night on charge to ensure that it goes off and the phone doesn't die.
My partner is often in bed when I go to bed so the room is dark and must remain so. Plugging the USB cable in is quite awkward in the dark and quite easy to get the wrong way round and sometimes I find it just isn't inserted properly. For me, dropping it on a wireless charging unit will make it much easier in these situations.
I just bought one without reason and i love it. You can use it with no light easy. Grab and go (it happens me a lot of time at work that i have to run somewhere and with cable I had some accidents :S)
rootSU said:
For me the reason is practical (the reason why I am planning). I use my phone as an alarm clock so my phone must be plugged in all night on charge to ensure that it goes off and the phone doesn't die.
My partner is often in bed when I go to bed so the room is dark and must remain so. Plugging the USB cable in is quite awkward in the dark and quite easy to get the wrong way round and sometimes I find it just isn't inserted properly. For me, dropping it on a wireless charging unit will make it much easier in these situations.
Click to expand...
Click to collapse
same reasoning for me. my wife liked it so much she wanted one too.
Its just cool and easy take the plunge you won't regret it
Sent from my Nexus 5 using Tapatalk
Lerway Wireless Qi Power Charger Pad for Lumia920 HTC 8X S4 S3 Note II (Black) by Shenzhen Lerway Technology Co.,Ltd. http://www.amazon.com/dp/B00E9MUNWU/ref=cm_sw_r_udp_awd_3yNQsb12TEZNY
Picked this up for 20 bucks has a light to tell you if it's charging or not. It not super bright so at night on the nightstand I don't see it unless I really look. The size is perfect for our phones. It is a nice charger.
Once you go wireless you will not want to plug in anymore. I hate having to charge at work. I drive a truck all day and having a cord is a pita...
Sent from my Nexus 5 using XDA Premium 4 mobile app
starnostar said:
Because its the most convenient thing ever....
I dislike the "official" n5 wireless charger, Instead I have the samsung S4 wireless charger, its a tray a littler larger than the n5 you just set it on.... anytime I'm at my desk I just set it on the charger. It might not seem like much, buts its well well worth it if you have an extra 50 bucks.
Click to expand...
Click to collapse
I have a wireless charger for my WII that holds both remotes don't know if that would work.
I will bump this 2-week old thread and say I was skeptical about buying a wireless charger for my Nexus 5. I received the official Nexus charger as a Christmas gift and it's very nice. Now if it's worth $50, only you can decide.
As others have said, it's nice to not have to fidget with a micro USB cable and connector in the dark. I find the USB jack on the N5 to be trickier than any other phone I've owned for some reason. I'm always fumbling with the connector for several seconds when I plug it in. This isn't a problem with the wireless charger.
There's also the added benefit that there is no longer a loose micro USB cable dangling between my bed and night stand. The nexus charger has a nice grip on the bottom so it doesn't move on my night stand.
TL;DR: I like that I got one as a gift, but I probably wouldn't pay $50 of my own money for it.
I just posted this in the Accessories Forum, but I'll put it here to. Seems relevant enough. If you don't need/care about using a big name brand, you won't have to spend anywhere near $50.
This is the one I'm currently using. Just a generic Qi charger off ebay. Has the same 5V 1A output as pretty much all other Qi chargers.
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Works pretty good, no complaints.
I also just saw that it's even cheaper now than when I ordered it before. just ordered 2 more.
It's currently $11.42 with free shipping. (Choose Black Charging Pad or White Charging Pad from the drop down list).
http://www.ebay.com/itm/Qi-Wireless-Charger-for-Samsung-Galaxy-S3-i9300-S4-i9500-Charging-Pad-Receiver-/121176056602?pt=US_Cell_Phone_PDA_Chargers&var=&hash=item1c36a7e31a
I also just ordered this one for my desk.
Pretty cheap as well. $14.83 with free shipping.
http://www.ebay.com/itm/Qi-Wireless-Charger-Charge-Pad-A-for-Nexus4-5-HTC-8X-Lumia920-820-Note2-3-S3-4-/271329239542?pt=US_Cell_Phone_PDA_Chargers&hash=item3f2c7ba1f6
Click to expand...
Click to collapse
So if you just look around, you can easily find generic ones that work perfectly well for a very reasonable price.
I would get one that puts out more then 1A preferably 2A(it can do that right?)
EDIT: I want a quick charge because it's wireless. That means I need it to quickly charge when its on there because it ain't charging when I pick it up obviously.
Sent from my Nexus 5 using Tapatalk
Wireless Charging uses more power to charge your phone, so if your an energy conscious eco saver, then be aware that wireless chargers are not that efficient at getting the charge to your phone.
I am sure XDA did a review on the Nexus 5 Charger (which also works for the Nexus 7 (2013)).
If you watch that video, it seems a bit flimsy to get the phone on a sweet spot to get it to charge, I am not sure if it is because he rushed it, and didn't leave it a second before fiddling to move it to a new spot. But it didn't look good for $50.
If the official charger was around $20, then yes, but considering you can plug your phone in via USB and STILL USE IT.
Where as with wireless, its on its pad, and you either have to pick the pad up with the phone, or just take the phone off charge, to ready that notification etc.
My view, it may be cool and neat to just place it down and charge, but its neither practical or efficient to use.
Just an update as my last post was to "justify" my intention to get a wireless charger, I now have a Nokia one (chosen specifically from research).
Got to say, its great. Although it still takes 2 hands in the dark, cold reality that is bedtime in my flat (one to assess the base orientation and the other to situate), it's much easier than grabbing a cable and plugging it in. I can't damage the port, no fiddling around in the dark and shining the screen on the cable to see which way up it goes ... just goes in...
-----------------------
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I do NOT reply to support queries over PM. Please keep support queries to the Q&A section, so that others may benefit
Dragn4rce said:
I would get one that puts out more then 1A preferably 2A(it can do that right?)
EDIT: I want a quick charge because it's wireless. That means I need it to quickly charge when its on there because it ain't charging when I pick it up obviously.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
I have yet to find a Qi charger pad that can output above 1A max to a device. That includes the official Nexus 5 wireless charger, GMYLE, Tylt Vu, Samsung etc. That's regardless of price ranges.
The official Nexus 5 charger for example takes 1.8A from the wall adapter to the charger, then the charger plate outputs the same 1A as everything else.
Factor in ~70% or so efficiency, and Qi chargers will generally max out charging the Nexus 5 at around 700 - 750mA.
I used CurrentWidget to compare the stock Nexus 5 wired charger and my generic ebay Qi charger using various connections.
This is what I got for max sustained charge:
I used the Stock USB cable for all of the variations.
Stock 1.2A LG wall adapter: 1053mA
2A USB wall adapter: 1053mA
Built in USB input on power bar: 1053mA
USB 3.0 port (desktop computer): 446mA (surprised it was so low for a USB 3.0 charge port)
USB 2.0 port (desktop computer): 334mA
Generic Qi charger (2A input/1A output)/Built in USB input on power bar: 751mA
Generic Qi charger/Stock LG adapter: 655mA (corrected, sorry typo)
Generic Qi charger/2A USB adapter: 751mA
Generic Qi charger/USB 3.0 port: 696mA (interesting compared to directly plugging into USB 3.0)
Generic Qi charger/USB 2.0 port: 502mA (low, but again higher than direct cable)
So looking at all of these, as well as looking at the stock LG charger (as well as a higher output 2A I had around), I couldn't get any higher than 1053mA charge rate regardless. I'm sure that's due to some built in settings in the Nexus 5.
What was more surprising (unless I screwed something up) was the crap charge rate using direct USB cable connection into a USB 3.0 charging port. It was only a little bit of an improvement over USB 2.0. This was somewhat negated using the Qi charger into the same desktop USB ports (which surprised me further) but still wasn't as efficient as directly into a power outlet.
So, if there ever is a Qi charger that outputs at 2A, given (from my anecdotal test anyway) a direct cable using a 2A adapter gave the same 1053mA max charge rate, I think the most you can expect is getting a little closer to the stock plug. I don't think wireless charging will ever be faster (or even equivalent) than wired given the efficiency loss, even if it was higher output. (My guess anyway) I think the 1A Qi chargers out right now are giving roughly what you can expect for Nexus 5 max wireless charging. It might even be limited like the wired charging seems to be.
I think the more important thing is, not to use the USB ports on a computer, even if it's a USB 3.0 charge port. Using the Qi charger to the computer it was still less than max the Qi was capable of. I've ordered 3 more 2A adapters to use with the Qi charger I have, plus the 3 additional Qi chargers I've ordered just to make sure I'm getting the most out of it.
So if you can find a cheap Qi charger (like the ones I posted earlier) you might as well go for it. As long as you check that the output is 1A, they essentially (charging wise) perform the same as the chargers that cost $20 - $50+ more.
If anyone can do any other tests with their Qi chargers to confirm or negate my findings, that would be great.
Hi everyone,
So I bought a Belkin 2.1A car charger from ebay for my Nexus 5 like this one:
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But during my various car trips using Google Maps sat nav I've noticed that the battery percentage was going down rather than up. I was very suprised as I thought that 2.1A would be enough to handle the battery consumption while also charging the device. After checking the stock AC charger I have noticed it's only rated for 1.2A, so the car charger charging problem surely must be another I thought.
By looking on the internet I've read that people were having charging issues because the device was recognizing the charger as an USB port so charging was limited to only 0.5A.
After a bit of further searching I found that the stock AC charger uses a shorted circuit on the data pins to make the phone recognize it as an AC charger. I went back to the car and tried the stock cable on the Belkin charger and in Settings->Battery it showed Charging (USB). Ok I said, then this must be the problem, I ended up building my own "Fast charge" cable by shorting the data wires on the Micro USB side. Trying again this time the phone showed as Charging (AC). I since tried the charger but without any success, the percentage was still going down while in use.
Today, I went into the Electronic lab of my University, and I've tried to check the Amps that were going through the phone (I have seen some videos on youtube of apps that show charging amps, but they all looked very wrong, like 8Amps or more). I believe I have finally found the reason of the slow charging or not charging:
The charging current is only 0.2A, far less than an USB port, and far far less of what is required to charge the phone wile the sat nav is going. I have tried both fast charge and stock usb cables but it still displayed the same exact current.
I don't know what to do next? Have any of you had any success in charging while using the sat nav (and 3g, bluetooth, nfc, ecc)?
Please forgive me if I am not understanding your post.
iltrevi said:
The charging current is only 0.2A...
Click to expand...
Click to collapse
Because it's defective?
iltrevi said:
I have tried both fast charge and stock usb cables...
Click to expand...
Click to collapse
What about a different charger?
iltrevi said:
Have any of you had any success in charging while using the sat nav (and 3g, bluetooth, nfc, ecc)?
Click to expand...
Click to collapse
I have used several different chargers without issue.
PhilipTD said:
Please forgive me if I am not understanding your post.
Because it's defective?
What about a different charger?
I have used several different chargers without issue.
Click to expand...
Click to collapse
It could be the charger that is detective, but after all thats what im trying to find out, or is it a compatibility issue with nexus 5? If the charger was defective wouldn't it be not charging at all?
Different charger? I don't have a different charger, that's why I bought this one, why shouldnt this be working if there's stated 2.1amp
OK thanks for advice, but I'd like to get this working, have you had any experience with this charger as well?
Never used that charger.
A defective charger may very well be slow, rather than dead.
I just thought that it might be a good idea to test a friend's charger in your car in order to eliminate the possibility that the socket/feed is malfunctioning. Or, even better, would be to use a current tester on the socket.
Ma, che ne so?
I'm using exactly the same Belkin charger in my Ford and it works properly while navigation is on. However, I don't charge and keep navigating frequently so can't shed more light on this!
I have had quite a few car-chargers (mostly cheap ones) , and the amount of current they provide compared to what they promised varies alot.
Haven't tried the belkin one, as I needed more than 1 usb port.
Currently i'm using
...://dx.com/p/star-go-st-06-aircraft-shaped-5v-4100ma-usb-4-port-car-charger-black-12-24v-290123#.UxSYQ3VdWlg
And it charges my nexus 5 with screen always on and my Samsung tab 3 running sygic.
(even need 10 posts for a link...)
I've been testing chargers extensively. What I have seen is actually scary.
The worst one was sold on ebay and was marked as a 3.1A capable device. When I hooked it up to a 12V source and connected the output to a scope I saw a triangle like DC output varying between 4.7 and 5.7Volts which is out of USB specs, meaning could damage your device.
The 2 other ones that I own are a lot better after modifying capacitors etc. but I gave up on that front.
I also tested a Belkin marked one that was supposed to be able to provide 1A but it only managed 0.8A and after 15min it died. Fake, no doubt about it.
Since I had a cigarette lighter plug in my drawer I made my own charger that is very DC clean and can provide more than enough juice to charge.
I use these modules http://www.ebay.co.uk/itm/7V-24V-to..._Measurement_Equipment_ET&hash=item4179d0059e
You can connect the 2 middle pins and my N5 draws 1.4A peak.
To be sure there is a 2A fuse in the cigarette lighter plug and a Transient-voltage-suppression diode connected over the 5V USB output so in case the convertor goes belly up and goes to 12V the 5.8V diode will kill the fuse in an instant.
That convertor is extreemly clean stable and has a very high efficiency so it will not even get close to getting warm when charging high speed.
Some people spend a fortune on cases and screen protectors but want the cheapest possible 12V to USB. I made this for like 6€ or $9 and I guarantee you nothing comes close that is on the market.
lukesan said:
To be sure there is a 2A fuse in the cigarette lighter plug and a Transient-voltage-suppression diode connected over the 5V USB output so in case the convertor goes belly up and goes to 12V the 5.8V diode will kill the fuse in an instant.
Click to expand...
Click to collapse
Did you put the 2A fuse in the car fusebox? or between the jack and your converter? Had not thought about making one myself
bakxsteen said:
Did you put the 2A fuse in the car fusebox? or between the jack and your converter? Had not thought about making one myself
Click to expand...
Click to collapse
There is a 2A fast (snelle ) fuse in that cigarette lighter plugin itself. So the module is capable of delivering 3A constant at 5.1V. Since the N5 nor a Note 3 will go above 2A charging, and the efficiency is >85%, I am secure on that front.
Since I see you are from Delft there should be an action shop in your area. They sell 2 port 2.1A capable car chargers (black and white) for like 3€ which are actually not bad at all. I only insist on those diodes that you can buy on ebay. They cost a couple of € but rather that than smoke out of your device.
I have about 8 of those modules now since they are so universal.
A couple of examples. An old laptop charger 15V 6A, cut the connector and hooked up the modules got all my usb devices charged in Africa.
1 is hooked up to a RC helicopter batt that is mounted on my bike and delivers around 11.1V and then goes to that module so I can charge and use GPS on the bike for hours.
Cheers for the info, coincidentally I have been looking for a way to power my raspberry pi in my 12-volt speaker set. This will make that a lot easier as well.
lukesan said:
I've been testing chargers extensively. What I have seen is actually scary.
The worst one was sold on ebay and was marked as a 3.1A capable device. When I hooked it up to a 12V source and connected the output to a scope I saw a triangle like DC output varying between 4.7 and 5.7Volts which is out of USB specs, meaning could damage your device.
The 2 other ones that I own are a lot better after modifying capacitors etc. but I gave up on that front.
I also tested a Belkin marked one that was supposed to be able to provide 1A but it only managed 0.8A and after 15min it died. Fake, no doubt about it.
Since I had a cigarette lighter plug in my drawer I made my own charger that is very DC clean and can provide more than enough juice to charge.
I use these modules http://www.ebay.co.uk/itm/7V-24V-to..._Measurement_Equipment_ET&hash=item4179d0059e
You can connect the 2 middle pins and my N5 draws 1.4A peak.
To be sure there is a 2A fuse in the cigarette lighter plug and a Transient-voltage-suppression diode connected over the 5V USB output so in case the convertor goes belly up and goes to 12V the 5.8V diode will kill the fuse in an instant.
That convertor is extreemly clean stable and has a very high efficiency so it will not even get close to getting warm when charging high speed.
Some people spend a fortune on cases and screen protectors but want the cheapest possible 12V to USB. I made this for like 6€ or $9 and I guarantee you nothing comes close that is on the market.
Click to expand...
Click to collapse
Very interesting! Can you post some picture of the actual charger you made? How did you add the transient voltage suppression diode?
Btw I will try to short the data pins also on the USB side and see if it makes any difference, apparently things like this one short both sides: http://www.amazon.co.uk/PortaPow-Fa...8&qid=1393861403&sr=8-12&keywords=fast+charge
iltrevi said:
Very interesting! Can you post some picture of the actual charger you made? How did you add the transient voltage suppression diode?
Btw I will try to short the data pins also on the USB side and see if it makes any difference, apparently things like this one short both sides:
HTML:
http://www.amazon.co.uk/PortaPow-Fast-Charger-iPhone-Blackberry/dp/B00GC4AJOU/ref=sr_1_12?ie=UTF8&qid=1393861403&sr=8-12&keywords=fast+charge
Click to expand...
Click to collapse
Difficult to show since it is sort of build in the car.
The module is plug and play. Hook up + and - (screwdriver thing so no soldering required) and the USB connector is already on the pcb board. Extreemly easy. Plug and play.
The diode is not big at all and is soldered on the back of the pcb. There are soldering points.
After that mod, diode and shorten data leads, I use that yellowish heat resistant tape around the pcb so it does not touch any metal parts or shorten anything. I've been using it in Arizona summer weather conditions and it is perfect.
lukesan said:
Difficult to show since it is sort of build in the car.
The module is plug and play. Hook up + and - (screwdriver thing so no soldering required) and the USB connector is already on the pcb board. Extreemly easy. Plug and play.
The diode is not big at all and is soldered on the back of the pcb. There are soldering points.
After that mod, diode and shorten data leads, I use that yellowish heat resistant tape around the pcb so it does not touch any metal parts or shorten anything. I've been using it in Arizona summer weather conditions and it is perfect.
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Ok, thanks. I think if I can't get another car socket charger to work this will be the path I will take.
Anyway I just tried shorting the USB side to see if this made any difference to the Belkin charger but it looks like nothing changed. I also tried shorting both data sides all together but that didn't change things either. I'm guessing the charger could be actually defective, I will try to get a replacement and see if that works better.
Why doesn't Google makes it own car charger and avoids all this messing about to find one that works.
iltrevi said:
Why doesn't Google makes it own car charger and avoids all this messing about to find one that works.
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You would think it would be in their interest as well, I imaging a lot of people will blame the phone.
bakxsteen said:
You would think it would be in their interest as well, I imaging a lot of people will blame the phone.
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This is another nice tool that I use. http://www.ebay.com/itm/New-Portabl...uter_Power_Supply_Testers&hash=item485a80ba76
You don't see if the output is clean but you get a good view on what is going on and the Voltage and Current readout is pretty accurate.
Just added 2 pics. This one I use when cycling. You can see an added resistor but it has no use since it ups the Voltage to 5.2V (just a test thing). On the back you can see that the data lines are connected and that special diode is soldered over the 5V pins.
The reason why this one isn't fully insulated with tape is that this one is my test one so I leave it open to test.
No need to fully insulate it since it goes in a weatherproof non conductive bag with the battery.
bakxsteen said:
Cheers for the info, coincidentally I have been looking for a way to power my raspberry pi in my 12-volt speaker set. This will make that a lot easier as well.
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Lol, actually I have one of these modules connected to my Harmon Cardon speakers which are connected to my flatscreen.
My Raspberry is on 24/7 for like 10 months now. No stability, heat issues at all.
Just another thing which is extremely important is the USB cable itself. I've seen some really strange things.
For example now I am testing an Anker 40W 5-port USB charger that I bought on Amazon. It features 'smart' technology to see what is connected and then place everything in quick charge.
I found the idea super, but they've already had to refund me after a couple of tests.
The thing is right in front of me now and I have that USB tester thing to measure current and 3 different cables. 1 HTC, 1 from a Jawbone headset and a Sony one. The original cable is at home.
Ok so the phone was at 60% batt which means it should still charge at full speed if possible. The HTC and Jawbone cable on the Anker did not pass 0.8A and the Sony (looking at it now) 0.92A. Voltage seems like 5.08V which is measured at the adapter and not the phone.
So 1 get that USB tool thing for a couple of € $ and actually see what is happening instead of guessing. I am really happy with it.
If you want me to do any tests of have questions feel free to ask. We, and I, can always learn from each other and there is no such thing as a stupid question to me.
lukesan said:
Just another thing which is extremely important is the USB cable itself.
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I believe USB cables and USB cables impendance as I've read somewhere are important only when charging the device with the data pins "enabled". As for Galaxy SI and SII chargers which used a fixed micro usb charging cable which was very thin, I belive that once data pins are shorted it doesn't matter anymore if you are using a very thick top quality cable or a ebay chinese cable, the phone will always pull as the same current.
Anyone correct me if I'm wrong.
iltrevi said:
I believe USB cables and USB cables impendance as I've read somewhere are important only when charging the device with the data pins "enabled". As for Galaxy SI and SII chargers which used a fixed micro usb charging cable which was very thin, I belive that once data pins are shorted it doesn't matter anymore if you are using a very thick top quality cable or a ebay chinese cable, the phone will always pull as the same current.
Anyone correct me if I'm wrong.
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Well I also did some tests on that front. Supplying 5V and putting a resistor 5.1 Ohm on the other side so it draws approx 1 Amp. It's very scary to see some cables go flat on their belly.
I had one which measured about 4.3V with that resistor on the other side, so massive loss in the cable and/or connector. If you take into account that the charging circuit efficiency is also not 100% it can have a big effect on the charging speed. Remember these batts at 100% charge are at 4.2V.
The S1 charges at about 0.65A and an S2 at 0.7A max (limited by the charging circuit) so using these devices as GPS in the car is tricky since screen and gps app on .... and you are at approx these values.
I was thinking about buying my own connectors and soldering 2 'thicker' cables to the connectors. You can shortcut the data-lines on the micro usb so no harm done when plugging into a pc. But how far do I go in this I ask myself.
Resurrecting this thread because I'm having a similar issue, I have a Belkin 2.1Amp charger that's capable of charging an iPad at 2.1 amp (and I've tested it in the past and it charges appropriately, and is able to charge an iPhone very rapidly as well) as well as another 1A USB charger and the Nexus 5 barely charges with either-it charges very slowly even when I have GPS shut off-I've charged it for an hour before and it'll maybe get 10% which is absurd. It's pretty clear that whatever high-amp pinning they have is meant more for iPads and the Nexus 5 isn't seeing these chargers as high speed chargers, does anybody know of a charger where they've had good success with the Nexus 5 to rapidly charge it?