Mobile battery packs - Asus Transformer TF700

I'm checking out solutions for mobile battery packs that are compatible with the Tf700. I've just purchased a veho pebble 13,200mah battery (link below if it let's me)
http://www.amazon.co.uk/gp/product/...m=A3P5ROKL5A1OLE&pf_rd_r=0SZEM38A0PCXEMC434RR
While it didn't come with the right adaptor I figured I could work out the various connections. The problem is I've realised it's 16V whereas the original charger is 16v so the question is EVEN if I manage to figure out the connections, would using 16v potentially damage the tablet?
Thoughts appreciated

DNO1978 said:
I'm checking out solutions for mobile battery packs that are compatible with the Tf700. I've just purchased a veho pebble 13,200mah battery (link below if it let's me)
http://www.amazon.co.uk/gp/product/...m=A3P5ROKL5A1OLE&pf_rd_r=0SZEM38A0PCXEMC434RR
While it didn't come with the right adaptor I figured I could work out the various connections. The problem is I've realised it's 16V whereas the original charger is 16v so the question is EVEN if I manage to figure out the connections, would using 16v potentially damage the tablet?
Thoughts appreciated
Click to expand...
Click to collapse
If it puts out true 16v then it could damage the Infinity. Measure the output voltage of the power pack with a multimeter.
The battery pack that I bought for the TF700 is the Anker Astro3 10000mAh. It has switchable output 5V / 9V / 12V. The TF700 will charge at 12v (car voltage). There was a brief discussion a couple of months ago about battery packs and what you will need:
Previous Discussion: http://forum.xda-developers.com/showthread.php?t=1924906
David

DavidHart said:
...The battery pack that I bought for the TF700 is the Anker Astro3 10000mAh. It has switchable output 5V / 9V / 12V. The TF700 will charge at 12v (car voltage). There was a brief discussion a couple of months ago about battery packs and what you will need:
Previous Discussion: http://forum.xda-developers.com/showthread.php?t=1924906 ...
Click to expand...
Click to collapse
I went this route using these USB adapter. Works well. You can use the tablet and phone on it at the same time; I was using my cellphone as a hotspot.

Thanks for the replies, I had already seen that post but I was hoping to be able to answer the 16v question as I had read in other places that 15v should be okay with 16v. I was hoping to get confirmation either way from someone know knew lots about electronics and voltage.
The main reasons for this are 1) I already have the battery 2) it's a brand I know and trust 3) It has a bigger capacity. However I'm a bit reluctant to using my tablet as an experiment so it's looking increasingly likely I'll have to return the veho pebble and pick up the Anker one.
Out of interest how long does it take to charge the Anker? From what I understand the input is only 5v so I'm guessing it's a good 6-8 hours? Also how long does it take to care the tablet itself?
Thanks

The first charge takes the longest, which is probably in that eight hour range. I haven't ran the Anker dead yet. I usually charge it back up after I used it, so it's fully changed whether dead or just a little. But it's a few hours.
The tablet takes about three hours or so from completely dead, assuming it's off. You can charge the tablet back up on the Anker.
I don't know about much on the electricity. I'm sure the tablet has a regulator of some sort, but couldn't say if 16v in would fit with in it or not.
There other larger battery packs like Anker. The problem is most don't have a way to put out the amps needed to register a charge for the tablet. Most just have USB ports, and limit the output to the normal .5mha that work with 90% or other usb devices.

Related

External USB Battery Charger for HTC Desire Battery

Hi All,
Couldn't find this posted before so wondered if anyone could recommend a USB Battery Charger to change the batt from my Desire without the phone. I have a spare and going on travels want to be able to just leave the battery charging on its own and not use the phone all the time.
Ive seen quite a few on ebay and some look really dodgy with adjustable charging pins etc whereas others are ridiculously cheap and i can only imagine will ruin my battery.
Key points are it should be small, light, USB powered and whilst I accept it will not charge as good/full as through the phone - not to knacker my batt completely.
Cheers for any help.
Bridgstfer
I have been looking for the same thing and found a battery pack on Amazon for £25, manufactured by New Trent it has a 5000mAh battery in it and can recharge your phone at least 3 times.
I ordered the dual output version on Sunday, so hope to get it and try it out in a couple of days.
Using a Veho pebble here, works great
would be nice for a faster charge though, it seems a bit slow for 750ma
mps711 said:
I have been looking for the same thing and found a battery pack on Amazon for £25, manufactured by New Trent it has a 5000mAh battery in it and can recharge your phone at least 3 times.
I ordered the dual output version on Sunday, so hope to get it and try it out in a couple of days.
Click to expand...
Click to collapse
I've got one of those. It's really good, one of the outputs is 1A so charges up really quickly.
My only criticism is the on/off button is easily pressed by accident, but that's really looking for problems. Oh and it would have been nice if the usb socket to charge it was a microusb one so I could use the same lead as the phone.
It's a good battery pack.
It certainly sounds like it is going to be good.
With regards to charging the pack itself, does it come with a USB to mini USB charging lead?
mps711 said:
It certainly sounds like it is going to be good.
With regards to charging the pack itself, does it come with a USB to mini USB charging lead?
Click to expand...
Click to collapse
Mine didnt come with any charger or leads but as I have a box full of that stuff it wasn't an issue.
Edit: I'm an idiot. It came with a lead with a selection of interchangable tips to fit most phones.
I forgot as this is now also living at the bottom of my tangled box of leads.
Thanks for the replies guys.
Yeah i actually had one of those external battery packs (5000mah) but found that you could not even get 2 full charges out of it and therefore not worth the extra weight/charge time.
Basically its misleading because the voltage of the battery is different to you phone battery and it need to be upscaled or something - there are quite alot of posts about it. Let us know if you manage to get 3 charges though - that would be good.
But anyone used external chargers for the a spare phone battery?

Need some help with otg + charge mod

Dear XDA, i really need your help,
I am planning to make this (see thubnail)
i want to make a custom case for my htc one s. (I know it will be a little bigger but that's ok)
I want to charge my phone using a usb cable or a micro usb cable, and at the same time doing OTG. I don't know what resistor i will use yet (tips?)
Also add an extra battery. It is an old phone battery. So if i want to charge from the battery i need to stop the solar cell and guide the electricity through the 5v regulator to charge. What ya think?
I am new to modding so please comment cause i need a lot of help to make this one succeed!
Greetings, pro-one1000
sent from htc one s ville
Don't mean to be negative but I see a couple issues right of the bat. First, where are you going to get a 5 volt charger? I would guess most dc chargers are going to be 12, 24, or 36 volts. I don't think they'll run on significantly less. The solar panel is only going to output about one half of one watt. Assuming no friction loss or inefficiencies that would hardly slow your phone's discharge.
If you want to power the phone and hub I would suggest a small sealed lead acid battery. They're available in 12 volts in many sizes. Easily enough power to keep phone totally charged. Will work with cigarette lighter car chargers so you won't need to customize that part. Depending on the size it'll last a week to a month non-stop. Unfortunately, it probably won't fit in your pocket but if you carry a book bag or briefcase you could hide it there... I use a battery like this at work when I'm using a lot of phone battery and moving around too much to plug in.
Good luck with which ever route you choose!
Sent from my HTC One S using xda app-developers app
thanks
lampel said:
Don't mean to be negative but I see a couple issues right of the bat. First, where are you going to get a 5 volt charger? I would guess most dc chargers are going to be 12, 24, or 36 volts. I don't think they'll run on significantly less. The solar panel is only going to output about one half of one watt. Assuming no friction loss or inefficiencies that would hardly slow your phone's discharge.
If you want to power the phone and hub I would suggest a small sealed lead acid battery. They're available in 12 volts in many sizes. Easily enough power to keep phone totally charged. Will work with cigarette lighter car chargers so you won't need to customize that part. Depending on the size it'll last a week to a month non-stop. Unfortunately, it probably won't fit in your pocket but if you carry a book bag or briefcase you could hide it there... I use a battery like this at work when I'm using a lot of phone battery and moving around too much to plug in.
Good luck with which ever route you choose!
Sent from my HTC One S using xda app-developers app
Click to expand...
Click to collapse
Thanks for your reply!
First about the charger, i will use my 5v 1amp charger (micro usb) or an usb male to male usb cable from my pc to charge. So i'll be able to get a charger.
You're i think right about the solar panel, i need to find a better one indeed, trying to get one cheap on ebay! If i try to search for a "smal sealed lead acid battery" i get 40 dollar + big cases of batteries, could you please give a example in the form of an ebay-link?
Anyway thanks a lot and when i have ordered the parts i will try to upload the stuff!
Greetings
I'm assuming the 5v charger you're talking about it a car charger; which means it would have an input voltage of 12 - 14 and won't run on 3.7 (and even if it could run on the lower voltage the amperage would go up dramatically draining the usable power in the battery in minutes. And I wouldn't connect anything to a USB port for two reasons: first, if you connect two batteries in parallel (red to red and black to black) and they're not identical one will usually drain the other as they try and equalize (unless you isolate them from each other). Second, I don't think most USB ports (USB 3.0 i believe has provisions to receive power) are designed to receive power on a computer and your schematic doesn't include anything to prevent back feeding power to the computer.
There are many solar chargers I've seen that would give you the output you need - I've seen them designed to trickle charge RVs, boats, cars, and motorcycles - but I think they would be way to larger for what your looking for.
And I guess I should clarify what I meant by small... Was a bad choice of words for a cell phone forum, I guess. I meant small relative to other lead acid batteries; i.e. car or boat batteries. This is similiar to what I use:
http://www.ebay.com/itm/12VOLT-5AMP...US_Rechargeable_Batteries&hash=item589ef11aed
Attached is a pic of my batteries and the adapter that gives me a cigarette lighter type receptacle. And I use a spare motorcycle float charger to keep them charged. And because they're 12 volt batteries they'll power and accessory that is designed to run in a car.
I guess I should probably have asked what is your ultimate goal? And do you carry anything where you could stash the battery?
giesse1996 said:
Thanks for your reply!
First about the charger, i will use my 5v 1amp charger (micro usb) or an usb male to male usb cable from my pc to charge. So i'll be able to get a charger.
You're i think right about the solar panel, i need to find a better one indeed, trying to get one cheap on ebay! If i try to search for a "smal sealed lead acid battery" i get 40 dollar + big cases of batteries, could you please give a example in the form of an ebay-link?
Anyway thanks a lot and when i have ordered the parts i will try to upload the stuff!
Greetings
Click to expand...
Click to collapse
Thanks for your reply,
After thinking I want to use a second1-5 volt boost regulator attached a small high capicity battery of 3.7 volt. (like a galaxy sIII battery or something. So if i put the switch to on the extra battery should charge with 5v my phone battery. Or i could charge my phone directly from a high efficient solar cell with 5v.
I indeed have no idea how to prevent backfleeding. Do I need diodes / light emmitting diodes for this? And indeed the batteries you mentioned are way to big. I am planning to use an old battery from an other phone with the 5v boost regulator mentioned above. Further i don't understand where you see a computer in my scheme?
Your mod ( i think i it deserves that wonderfull name) with the 12v battery is a good idea. Very handy when going out without a charge point. I usually go to school and am probably able to put the large battery in there, but as i mentioned i want to keep it a "phone case".
My ultimate goal is to make the tiniest possible case for the htc one s ville with,
- a very small usb hub 4 port for 3 female ports and inside a micro sdhc memory for more storage.
- Add the charge ability, so i don't need to take the phone out of the case to charge
- be in otg mode and charging mode at the same time (i guess the hardest challenge)
optionary:
- Add a battery so when i get the actual phone out of the case the solar cell can keep providing power to the battery
- Add a solar cell
- make it actual work with multiple switches
Really appreciate your help!
Greetings,
I misunderstood "First about the charger, i will use my 5v 1amp charger (micro usb) or an usb male to male usb cable from my pc to charge" to mean you might have a computer available to charge. I guess you just meant the cable itself. Understood.
I'm not an electronics expert by any means but yes I believe diodes will prevent the current from flowing in an undesirable direction but they won't prevent one battery from draining another. Two batteries connected in parallel can drain each other and the diode will slow that but I don't think it will eliminate it. Might be able to mitigate the affect by opening one of your switches when the auxiliary battery is not in use. When two batteries are wired in parallel they are frequently connected to an isolator that has three terminals (for a two battery setup). Terminals one and two go to batteries one and two and terminal three goes to the system it's connected to. Batteries one and two never 'see' each other and therefore cannot affect or drain each other.
Not sure I have anything else that can really help... GOOD LUCK! And post pics and details if you build a working prototype.
Thanks again!
I'll try to order a couple extra diodes with low consuption, that plus the switches will hopefully do the job. I ordered yesterday the parts out of China, so it'll take a month to get it in my hands. Now I have more time to consider how it can be assembled all together, but if i get anything i will post it directly!! If it works i may try to make a tutorial for other people so they could also enjoy more ports on their phone!
Greetings

Full power charging dock?

I want a charging dock for my S4 that will feed the phone the full amount of power that it can take, for quickest charging. I believe the stock charger that came with it supplies 2 amps.
I also would like said charger to have a slot for charging a spare battery at the same time.
All the charging docks I've found so far only claim to supply 1 amp to the phone, or less. Except one dock I found that did say it outputs 1.6 amps.
Does anybody know of a charging dock that will supply the full 2 amps? How about one that also has a slot for charging a spare battery?
Thanks.
stuartv said:
I want a charging dock for my S4 that will feed the phone the full amount of power that it can take, for quickest charging. I believe the stock charger that came with it supplies 2 amps.
I also would like said charger to have a slot for charging a spare battery at the same time.
All the charging docks I've found so far only claim to supply 1 amp to the phone, or less. Except one dock I found that did say it outputs 1.6 amps.
Does anybody know of a charging dock that will supply the full 2 amps? How about one that also has a slot for charging a spare battery?
Thanks.
Click to expand...
Click to collapse
Would you like it to serve you eggs and ham as well?
Damn.. you are really asking for so much and not nearly searching for it yourself enough if that makes sense.
There are charging docks that have a battery charger slot as well. They have a microusb port for power input. You can use a 2A charger with it and I believe it should be charging the phone at 2A but only when you're not charging the spare battery. I do not have the link as I saw it while randomly browsing through S4 docks on eBay. It's easy enough to find.
No, thanks. If it could cook my eggs and ham, it would be too bulky. LOL!
I looked through roughly 150 listing on eBay. I saw a whole bunch that said 1A output. And a few that were 700 mA, and at least one that was 500 mA. And exactly one model, available from a few different vendors, that said 1.6A output.
I did not see any that said 2A output. Just because the wall wart can supply as much as 2 amps, doesn't mean the charger will actually output that much to the phone.
stuartv said:
No, thanks. If it could cook my eggs and ham, it would be too bulky. LOL!
I looked through roughly 150 listing on eBay. I saw a whole bunch that said 1A output. And a few that were 700 mA, and at least one that was 500 mA. And exactly one model, available from a few different vendors, that said 1.6A output.
I did not see any that said 2A output. Just because the wall wart can supply as much as 2 amps, doesn't mean the charger will actually output that much to the phone.
Click to expand...
Click to collapse
My advice, is you should risk it.
If you're looking a product with such precise specs, I'm afraid you're not going to find it.
I messaged several different ebay sellers last night to ask if their charger is really only 1A and if they'll be having a 2A model. So far, I've gotten responses from 3 or 4. All of them have said sorry, we only have 1A. Please note, it will charge more slowly.
Update info. This may be old news to many, but here it is.
I had an online chat with a Supervisor at Seidio this morning. Their website has 2 charging docks for the S4 and neither lists charging output.
They told me that the dock will output whatever the wall adapter supplies. The charging dock is a passthrough. So, if I use the stock OEM charger with the Seidio dock, my phone will (allegedly) still receive 2A of charging current.
This may have been intuitively obvious to some, but it wasn't to me.
So, my quest is now much easier. Apparently, the docks I looked at on eBay that say 1A charging output must say so because the supplied wall adapter only provides 1A. And ones that say that but don't include the AC adapter are just making an assumption about that AC adapter you'll use.
BUT, though the phone charging port may be a passthrough, the slot for charging a second battery (on docks that offer that) would have the charging logic/circuitry built into the dock, so that could still be limited to 1A or less. At least, that's what I think. Could be wrong.
Regardless, i ordered a cheap dual charging dock off eBay that should be here by Friday. Using Galaxy Charging Current (a free app in the Play store), my phone shows 1900 mA charging current when plugged into the OEM charger directly. After I get the dock I ordered, I'll test that and report back.
If the dock will charge the phone at full speed, I can live with the spare battery being charged more slowly.
stuartv said:
I want a charging dock for my S4 that will feed the phone the full amount of power that it can take, for quickest charging. I believe the stock charger that came with it supplies 2 amps.
I also would like said charger to have a slot for charging a spare battery at the same time.
All the charging docks I've found so far only claim to supply 1 amp to the phone, or less. Except one dock I found that did say it outputs 1.6 amps.
Does anybody know of a charging dock that will supply the full 2 amps? How about one that also has a slot for charging a spare battery?
Thanks.
Click to expand...
Click to collapse
It's NOT a dock but a charger and it does come with an OEM spare battery. It charges a battery from 0 to 100% in about 4 hours, which is faster than your phone would deplete a battery, even when gaming. Paid $47, no shipping from Amazon
I see the price have changed a bit meanwhile but it's worth it if they still don't charge any shipping. Ships directly from Korea (made in Korea - both, charger and battery)
stuartv said:
Update info. This may be old news to many, but here it is.
I had an online chat with a Supervisor at Seidio this morning. Their website has 2 charging docks for the S4 and neither lists charging output.
They told me that the dock will output whatever the wall adapter supplies. The charging dock is a passthrough. So, if I use the stock OEM charger with the Seidio dock, my phone will (allegedly) still receive 2A of charging current.
This may have been intuitively obvious to some, but it wasn't to me.
So, my quest is now much easier. Apparently, the docks I looked at on eBay that say 1A charging output must say so because the supplied wall adapter only provides 1A. And ones that say that but don't include the AC adapter are just making an assumption about that AC adapter you'll use.
BUT, though the phone charging port may be a passthrough, the slot for charging a second battery (on docks that offer that) would have the charging logic/circuitry built into the dock, so that could still be limited to 1A or less. At least, that's what I think. Could be wrong.
Regardless, i ordered a cheap dual charging dock off eBay that should be here by Friday. Using Galaxy Charging Current (a free app in the Play store), my phone shows 1900 mA charging current when plugged into the OEM charger directly. After I get the dock I ordered, I'll test that and report back.
If the dock will charge the phone at full speed, I can live with the spare battery being charged more slowly.
Click to expand...
Click to collapse
Hope it works out. The dock i ordered from seidio for my evo 3d did not charge at full power with the supplied adapter. I used a diff cable and power source and the results were better, but still not very good. Most nights I simply removed the cable and plugged the phone directly to it bypassing the dock, kind of defeated the purpose. I hope to find one that keeps the S4 charged.
Well, I received my eBay dock today, 2 days early. It is this one:
http://www.ebay.com/itm/111066155507?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
And when I plug it in and put the phone in it, I get a message that the connected charger is not compatible with this phone. And the phone shows a red X over the battery icon in the notification bar, and doesn't charge at all.
I tried it using the OEM charger and cable, the cable that came with the dock, and I also tried both cables using my OEM charger that came with my Note 10.1 tablet.
Exactly one time, when I put the phone into the dock, it didn't display a message and Galaxy Charging Current (app in Play) showed that it was charging at 1900 mA. But, several times before, and every time after that, it just displayed the message and wouldn't charge at all.
:crying:
nacos said:
It's NOT a dock but a charger and it does come with an OEM spare battery. It charges a battery from 0 to 100% in about 4 hours, which is faster than your phone would deplete a battery, even when gaming. Paid $47, no shipping from Amazon
I see the price have changed a bit meanwhile but it's worth it if they still don't charge any shipping. Ships directly from Korea (made in Korea - both, charger and battery)
Click to expand...
Click to collapse
I've seen that and that's a big "no way". My normal deal is, if I run out of battery, it's because I'm out and about. Traveling on a plane. Riding my motorcycle. Whatever. Situations where I don't have the option to plug in. So, I swap batteries on the go and the charge when I get to where I'm going.
This charger on Amazon would require me to carry it, plus my phone charger, plus an additional phone charger to run the separate battery charger. If I were just going to share my phone charger between the phone and the separate charger, I would rather just have the phone on the charger and, when it's fully charged, swap batteries, to charge the next one - not swap the charger cable over to the separate battery charger.
if I were going to go the route of a separate battery charger, I would spend $7 or so on eBay on one of the ones that has a flip-out plug built in and plugs right into the wall. That is the kind I have been using for a while to charge my Rezound batteries when traveling.
The biggest problem with those is that they charge the battery at something like 350mA. Ridiculously slow!
stuartv said:
I've seen that and that's a big "no way". ...if I run out of battery, it's because I'm out and about. Traveling on a plane. Riding my motorcycle. Whatever. Situations where I don't have the option to plug in. So, I swap batteries on the go and the charge when I get to where I'm going.
Click to expand...
Click to collapse
...buddy, that's EXACTLY what this is. It simply gives you the option of charging another OEM battery (in the charger NOT in the phone) BEFORE you go out and about and then swap them as you need.
NO, it's NOT charging as slow as you suggest. They use a technology called direct charge which means that it draws as much (or as little) as your wall plug allows it. In other words if you plug it in the PC USB, then yes, you'll have to wait until you grow a nice thick beard, but if you plug it in your original 2A charger, it'll charge the battery from 0-100% in about 4 hours or less.
stuartv said:
This charger on Amazon would require me to carry it, plus my phone charger, plus an additional phone charger to run the separate battery charger.
Click to expand...
Click to collapse
Absolutely NOT true:
1. You ONLY need to carry the charger if you plan on recharging the depleted battery BEFORE doing another swap - that's at least 12-15 hours on EXTENSIVELY using BOTH batteries - that's 12-15 hours screen on!!!
2. ONE phone charger can be used on either/or - you'll never have to charge them both in the same time (that's the idea with swapping the batteries, right?)
stuartv said:
If I were going to go the route of a separate battery charger, I would spend $7 or so on eBay on one of the ones that has a flip-out plug built in and plugs right into the wall.
Click to expand...
Click to collapse
Up to you buddy, but usually you get what you pay for. The one I suggested comes with an OEM battery. I always suggest using this method over any battery pack as an OEM battery will ALWAYS give you just as much "juice" (this translates into running time) as the...yeah, you guessed it, the Original Equipment Manufacturer's battery. Although the battery packs manufacturers, they all claim huge capacities and running times, this mostly never holds true to the advertised specifications. It's called marketing
nacos said:
...buddy, that's EXACTLY what this is. It simply gives you the option of charging another OEM battery (in the charger NOT in the phone) BEFORE you go out and about and then swap them as you need.
NO, it's NOT charging as slow as you suggest. They use a technology called direct charge which means that it draws as much (or as little) as your wall plug allows it. In other words if you plug it in the PC USB, then yes, you'll have to wait until you grow a nice thick beard, but if you plug it in your original 2A charger, it'll charge the battery from 0-100% in about 4 hours or less.
Absolutely NOT true:
1. You ONLY need to carry the charger if you plan on recharging the depleted battery BEFORE doing another swap - that's at least 12-15 hours on EXTENSIVELY using BOTH batteries - that's 12-15 hours screen on!!!
2. ONE phone charger can be used on either/or - you'll never have to charge them both in the same time (that's the idea with swapping the batteries, right?)
Up to you buddy, but usually you get what you pay for. The one I suggested comes with an OEM battery. I always suggest using this method over any battery pack as an OEM battery will ALWAYS give you just as much "juice" (this translates into running time) as the...yeah, you guessed it, Original Equipment Manufacturer's battery. Although the battery packs manufacturers, they all claim miraculous capacities, they NEVER actually last as per specifications. It's called marketing
Click to expand...
Click to collapse
I don't think you're getting me. The point is, I get to the end of the day and I need to charge my phone AND the battery I used up. In order to charge both at the same time, using this Samsung separate battery case/charger, I would have to have 2 actual chargers. One to attach to my phone, to charge that battery, and one to attach to the separate case/charger.
Get it now?
More detailed:
- I start the day with 2 fully charged batteries. One is in the phone.
- I ride my motorcycle all day, streaming music via Bluetooth to my helmet, and talking on the phone while I'm riding.
- Before I'm done riding for the day, my battery dies, so I swap it.
- I continue riding, etc.
- I get where I'm going and I'm ready to go to bed.
- I now have a dead battery in one hand and phone with a partly depleted battery in the other hand. I want them to both charge while I'm sleeping.
This separate case/charger does not help me.
stuartv said:
I don't think you're getting me. The point is, I get to the end of the day and I need to charge my phone AND the battery I used up. In order to charge both at the same time, using this Samsung separate battery case/charger, I would have to have 2 actual chargers. One to attach to my phone, to charge that battery, and one to attach to the separate case/charger.
Click to expand...
Click to collapse
No offense, but I believe you don't get it. You say: "I need to charge my phone AND the battery". I should ask you then, do you still need to charge your phone and the BATTERIES (this is the plural, meaning two or more) should you go by my suggestion?
Either, or, if you're such a heavy user and you find yourself at the end of the day with 2 or more depleted batteries on a regular basis, then this becomes even more handy - admittedly, yes, using a second wall plug...or, again, if you're such a heavy user, then buy a 3rd OEM battery - case solved. (1 charger, 2 extra batteries, 1 USB cable, 1 wall plug)
nacos said:
No offense, but I believe you don't get it. You say: "I need to charge my phone AND the battery". I should ask you then, do you still need to charge your phone and the BATTERIES (this the plural, meaning two or more) should you go by my suggestion?
Either, or, if you're such a heavy user and you get to deplete 2 (or more) batteries on a regular basis, then this becomes even more handy - admittedly, yes, using a second wall plug. Furthermore, again, if you're such a heavy user, then buy a 3rd OEM battery - case solved. (1 charger, 2 extra batteries, 1 wall plug)
Click to expand...
Click to collapse
You obviously didn't read my whole last post. Otherwise, you would understand that saying "I need to charge my phone AND the battery" is a short way of saying "I need to charge the battery that's in my phone (but not totally dead yet) AND the battery that I depleted earlier in the day."
And if I added a 3rd OEM battery (which you would also see that there is no need for, if you read my whole previous post), it still would not change the fact that, at the end of the day, I have 2 batteries I need to charge and only 1 wall charger to use. So, the separate case/charger still does not help.
If I charge the battery in my phone and then want to use my one and only wall charger to charge the battery that's in the case/charger, I may as well just swap the batteries and charge the second battery in my phone. Thus, I would save running down the battery that's in my phone while the other battery is charging in the case/charger AND I would save spending $50 on the case/charger when I just used my coupon last night and got an OEM battery straight from Samsung for only $20.
stuartv said:
You obviously didn't read my whole last post. Otherwise, you would understand that saying "I need to charge my phone AND the battery" is a short way of saying "I need to charge the battery that's in my phone (but not totally dead yet) AND the battery that I depleted earlier in the day."
And if I added a 3rd OEM battery (which you would also see that there is no need for, if you read my whole previous post), it still would not change the fact that, at the end of the day, I have 2 batteries I need to charge and only 1 wall charger to use. So, the separate case/charger still does not help.
If I charge the battery in my phone and then want to use my one and only wall charger to charge the battery that's in the case/charger, I may as well just swap the batteries and charge the second battery in my phone. Thus, I would save running down the battery that's in my phone while the other battery is charging in the case/charger AND I would save spending $50 on the case/charger when I just used my coupon last night and got an OEM battery straight from Samsung for only $20.
Click to expand...
Click to collapse
OK, now I did get what you were saying (admittedly, I didn't read the whole post initially) but I still believe that carrying a second set (wall charger + USB cable) would render a better overall usage time without compromising on convenience or quality (again, due to using a certified OEM battery). Think about it, the only "compromise" you're making is carrying another set - which is nothing, both in terms of money and used space/volume.
So, your on-the-go package would consist of: 1 Samsung charger, 1 extra battery and 2 sets of wall chargers/USB cables.
Now, we're getting somewhere!
Your alternative would cost me something like $70 for the case/charger (w/battery) plus a second AC adapter.
My alternative will cost me less than $30. $20 that I already spent on a second OEM battery, plus less than $10 for a wall charger like this:
http://www.ebay.com/itm/Charging-Cr...l_Phone_PDA_Chargers&var=&hash=item27d35082af
And I have less "pieces" to carry around.
Of course, the cheap wall charger won't charge the battery as quickly. But, I have been using a charger just like that for my Rezound batteries for a while now and it always seems to manage to get the job done overnight.
However, the PREFERRED solution is what I asked about in my OP in this thread. I want a dock that will supply full power to the phone and a spare battery at the same time. As I posted later in this thread, it now seems that most any charging dock should supply full power to the phone (as long as the AC adapter is providing 2A). Those docks still won't probably give full power to charge the spare battery, but I can live with that. So, with a dock like that, I would carry the same number of "pieces", but I'd have the advantage of having a dock to prop my phone up next to the bed, so I can see it.
stuartv said:
Update info. This may be old news to many, but here it is.
I had an online chat with a Supervisor at Seidio this morning. Their website has 2 charging docks for the S4 and neither lists charging output.
They told me that the dock will output whatever the wall adapter supplies. The charging dock is a passthrough. So, if I use the stock OEM charger with the Seidio dock, my phone will (allegedly) still receive 2A of charging current.
This may have been intuitively obvious to some, but it wasn't to me.
Click to expand...
Click to collapse
I can 100% attest to this NOT being true. I have my OEM Samsung S4 2A charger hooked up to my Seidio Innodock Jr. at it receives a MAX of 1020mA. Yes, I realize it isn't the exact charger you are looking for since it doesn't have the spare battery compartment, but Seidio is NOT being truthful to you when they say that it is "a passthrough" dock. Just a heads up!
KryptosXLayer2 said:
I can 100% attest to this NOT being true. I have my OEM Samsung S4 2A charger hooked up to my Seidio Innodock Jr. at it receives a MAX of 1020mA. Yes, I realize it isn't the exact charger you are looking for since it doesn't have the spare battery compartment, but Seidio is NOT being truthful to you when they say that it is "a passthrough" dock. Just a heads up!
Click to expand...
Click to collapse
What are you using to determine your max of 1020A? Galaxy Charging Current? Battery Monitor Widget?
stuartv said:
What are you using to determine your max of 1020A? Galaxy Charging Current? Battery Monitor Widget?
Click to expand...
Click to collapse
Both, they both display the same data - the BMW widget takes longer to update since I paid for the full version of GCC
KryptosXLayer2 said:
Both, they both display the same data - the BMW widget takes longer to update since I paid for the full version of GCC
Click to expand...
Click to collapse
I have both and they do not display the same data. As far as I can tell, GCC shows the actual full incoming current. OTOH, BMW shows the current being used to charge the battery.
When I plug in my OEM charger, GCC shows 1900. But, if the screen is using 100 and other stuff running is using another 100, the BMW would only show 1700.
So, as far as your post about the Innodock, if GCC shows 1020, then that's what I would believe. But, if it's BMW that's telling you 1020, then that could simply be because there is other stuff using almost 900 mA of current.
For the record, I looked through my BMW Usage log from last night when my phone was on the charger. The log shows every 5 minutes, I think. It only had one log entry where it showed 1992. All the rest were in the 1500 - 1600 range or less. And the phone screen was off that whole time.

[Q] Wireless Charging + Daydream Bizarre Performance

This is my first experience with wireless charging so I'm probably missing the obvious here so please, anybody, point that out.
I'm newly using a wireless charger with my N5 & performance just doesn't make any sense to me. It's the Korean/Chinese knock-off of the N4 Orb which others on XDA have used successfully. On basic charging it does work but I can't make any sense of these numbers:
Charging I get roughly 10% per hour -- not great, but okay for bedside/overnight.
Charging with daydream on (Dashclock) on I get a loss of roughly 10% per hour! Yes, the phone keeps indicating it is charging in spite of this heavy drain.
But sometimes daydream just turns off & it returns to charging -- this seems to happen if I start off with the phone (mostly) charged. For the most part though, if I leave the phone on the charger overnight with daydream enabled I'll wake to a nearly empty battery.
As I said, these numbers make no sense to me at all. Part of the problem may be the power source for the orb - it's only 1A but even if it's underpowered I can't see the drop from +10% to -10% /hour.
Second part of my query -- does anyone know if it would be effective (and safe!) to feed 1.2A to the orb & maybe get faster charge. Or maybe that would be enough to keep up with the Daydream drain?
FWIW the the USB charger (1.2A) is very fast, I get better than 1% per minute -- unaffected by Daydream.
im using this and mine gets full charge within 1 and half hours
Sent from my Nexus 5 using xda app-developers app
10% per hour? Something's wrong. A wireless charger shouldn't take much longer than wired.
It's possible your adapter is a dud. Try using the 1.2a adapter, it'll be fine. If it still isn't faster, you might have a bad charger.
Also, if it came with a USB cable, don't use it. The wires are too small to carry a reasonable amount of current.
NotFromMountainView said:
This is my first experience with wireless charging so I'm probably missing the obvious here so please, anybody, point that out.
I'm newly using a wireless charger with my N5 & performance just doesn't make any sense to me. It's the Korean/Chinese knock-off of the N4 Orb which others on XDA have used successfully. On basic charging it does work but I can't make any sense of these numbers:
Charging I get roughly 10% per hour -- not great, but okay for bedside/overnight.
Charging with daydream on (Dashclock) on I get a loss of roughly 10% per hour! Yes, the phone keeps indicating it is charging in spite of this heavy drain.
But sometimes daydream just turns off & it returns to charging -- this seems to happen if I start off with the phone (mostly) charged. For the most part though, if I leave the phone on the charger overnight with daydream enabled I'll wake to a nearly empty battery.
As I said, these numbers make no sense to me at all. Part of the problem may be the power source for the orb - it's only 1A but even if it's underpowered I can't see the drop from +10% to -10% /hour.
Second part of my query -- does anyone know if it would be effective (and safe!) to feed 1.2A to the orb & maybe get faster charge. Or maybe that would be enough to keep up with the Daydream drain?
FWIW the the USB charger (1.2A) is very fast, I get better than 1% per minute -- unaffected by Daydream.
Click to expand...
Click to collapse
So I'm using DashClock also and when it doesn't crash, my phone will charge just fine. Seems like about 3 hours total with daydream on, and about 2 hours with it off just regular charging. Here's my charger: http://www.amazon.com/gp/product/B00DOW1RD0/ref=wms_ohs_product?ie=UTF8&psc=1. Seems like you have a defective charger but it is a really weird situation.
Thanks guys, the jump to 1.2A made a world of difference! It still seems strange, but I guess there's a minimum threshold for the phone to properly charge. (I am really guessing!) Plugging the OEM charger into my qi orb I finally get a positive charge with daydream -- not fast, but good enough to wake with a charged phone! Without daydream I just got about 36% in the past hour.
A quick scan of eBay and the only 1.2A USB supplies I can find are refurbished LG & cost as much as the full qi orb! (from US with crazy shipping costs on these - I'm in Canada) But there are lots of 1.5A blocks, cheap (and free shipping from China). So... do you think it would be safe to try the 1.5A? According to Play the Google qi comes with a 1.8A supply but I have no idea how much the pad modulates the power or if that is all in the phone itself. It would be nice to have fast wireless charging, but with the dramatic jump with just the .2A increase I may be looking at something too powerful.
My concerns are (in order) 1. Don't want to fry the phone!
2. Don't want to burn down my apartment!
3. Would rather not trash the orb. The orb was inexpensive so I'm willing to gamble on point # 3.
Advice / assurances / suggestions? Please.
Mr. Sprinkles said:
Also, if it came with a USB cable, don't use it. The wires are too small to carry a reasonable amount of current.
Click to expand...
Click to collapse
I assume you mean USB out from PC since OEM charger is USB and orb power supply is USB as well. Point taken on PC charging though.
NotFromMountainView said:
Thanks guys, the jump to 1.2A made a world of difference! It still seems strange, but I guess there's a minimum threshold for the phone to properly charge. (I am really guessing!) Plugging the OEM charger into my qi orb I finally get a positive charge with daydream -- not fast, but good enough to wake with a charged phone! Without daydream I just got about 36% in the past hour.
A quick scan of eBay and the only 1.2A USB supplies I can find are refurbished LG & cost as much as the full qi orb! (from US with crazy shipping costs on these - I'm in Canada) But there are lots of 1.5A blocks, cheap (and free shipping from China). So... do you think it would be safe to try the 1.5A? According to Play the Google qi comes with a 1.8A supply but I have no idea how much the pad modulates the power or if that is all in the phone itself. It would be nice to have fast wireless charging, but with the dramatic jump with just the .2A increase I may be looking at something too powerful.
My concerns are (in order) 1. Don't want to fry the phone!
2. Don't want to burn down my apartment!
3. Would rather not trash the orb. The orb was inexpensive so I'm willing to gamble on point # 3.
Advice / assurances / suggestions? Please.
I assume you mean USB out from PC since OEM charger is USB and orb power supply is USB as well. Point taken on PC charging though.
Click to expand...
Click to collapse
The official orb charger comes with a 1.8a brick. You should be fine.
Sent from my Nexus 10 using Tapatalk 4
NotFromMountainView said:
Thanks guys, the jump to 1.2A made a world of difference! [...] you mean USB out from PC since OEM charger is USB and orb power supply is USB as well. Point taken on PC charging though.
Click to expand...
Click to collapse
I mean if your orb uses a USB cable and came with one, don't use the cable it came with. They're often very cheap and add a lot of resistance which will increase charge time.
It wasn't the step up to 1.2A that made a world of difference, it's using a quality adapter that made the difference. Your 1A adapter must have been faulty or grossly overrated. Sounds like it was putting out less than 500mA.
As for a higher amperage power supply somehow damaging things? Not possible. The circuitry in the wireless charger is only going to use what it needs, you could hook it up to a 50A power supply and it'll still draw around 1A. The N5 is also input current limited to 1.2A, so using a crazy high amperage adapter won't have much benefit anyway.
Still, not a bad idea to get a 1.5A - 2A adapter to compensate for whatever current the wireless charger itself uses. This is probably why the official one includes a 1.8A adapter.
Mr. Sprinkles said:
10% per hour? Something's wrong. A wireless charger shouldn't take much longer than wired.
It's possible your adapter is a dud. Try using the 1.2a adapter, it'll be fine. If it still isn't faster, you might have a bad charger.
Also, if it came with a USB cable, don't use it. The wires are too small to carry a reasonable amount of current.
Click to expand...
Click to collapse
Mr. Sprinkles said:
I mean if your orb uses a USB cable and came with one, don't use the cable it came with. They're often very cheap and add a lot of resistance which will increase charge time.
It wasn't the step up to 1.2A that made a world of difference, it's using a quality adapter that made the difference. Your 1A adapter must have been faulty or grossly overrated. Sounds like it was putting out less than 500mA.
As for a higher amperage power supply somehow damaging things? Not possible. The circuitry in the wireless charger is only going to use what it needs, you could hook it up to a 50A power supply and it'll still draw around 1A. The N5 is also input current limited to 1.2A, so using a crazy high amperage adapter won't have much benefit anyway.
Still, not a bad idea to get a 1.5A - 2A adapter to compensate for whatever current the wireless charger itself uses. This is probably why the official one includes a 1.8A adapter.
Click to expand...
Click to collapse
El Daddy & Mr. Sprinkles thanks, that's just the type of reassurance I needed!
just use the 2,1A amazon kindle charger with your orb... its cheap, safe and wont fry your phone
Gesendet von meinem Nexus 5 mit Tapatalk
Mr. Sprinkles said:
I mean if your orb uses a USB cable and came with one, don't use the cable it came with. They're often very cheap and add a lot of resistance which will increase charge time.
It wasn't the step up to 1.2A that made a world of difference, it's using a quality adapter that made the difference. Your 1A adapter must have been faulty or grossly overrated. Sounds like it was putting out less than 500mA.
As for a higher amperage power supply somehow damaging things? Not possible. The circuitry in the wireless charger is only going to use what it needs, you could hook it up to a 50A power supply and it'll still draw around 1A. The N5 is also input current limited to 1.2A, so using a crazy high amperage adapter won't have much benefit anyway.
Still, not a bad idea to get a 1.5A - 2A adapter to compensate for whatever current the wireless charger itself uses. This is probably why the official one includes a 1.8A adapter.
Click to expand...
Click to collapse
So from what I heard wireless charging, like a pogo plug can charge at a higher rate than the micro USB port in some devices (I've heard pogo plug can go up to 2.5A where the micro USB in that device is limited to 1.8A). So I'm wondering as these qi chargers get better, will this also be true. Mine is a 1A but seems like it charges around .8A so it's maxed out. I guess this also raises the question as to how fast is good for a battery also.
Sent from my Nexus 5 using Tapatalk

Charging Pixel with old phone chargers

As I'm sure is the case for many of you, I have a ton of typical USB chargers around the house, which supply anywhere from 0.8A to 1.5A output. Going with the assumption that I don't care how long it takes to charge, is there any risk with using the USB C-A cable that came with my pixel and plugging into any of those old USB chargers? They should all work, right? Just as different speeds depending on the output current?
I am not an expert, but from my research into the safety of USB-A to USB-C cables, the "risk" will generally come as a result of purchasing a cheap cable that does not have the appropriate (56k) resistor. The cable that came directly from google has the appropriate resistor and is not low quality, so it will be safe to plug into any functioning USB port (either on your computer or a charger).
That being said, if you have a malfunctioning charger, or there is power surge etc., that is an "act of god" and what happens happens
You may actually be better off using these old chargers if they work correctly. The slower you charge your phone, the better it is for the longevity (years) of your battery.
Yeah, that is why I didn't care about charging speed. For plugging it in next to my bed each night, I figure slower is better. However, I just received a mini USB to USB C from Amazon, and used that to plug my pixel in last night to a 1a charger. And while the phone did say charging over USB, it didn't gain any battery overnight and instead continued to discharge until I woke up in the morning. Is anyone else seeing anything like that?
Not trying to be mean or name call but I personally think you all are crazy. Buying a $700 phone and using a cheap charger that could have the risk to break your phone. Especially if you know better. Honestly, spending the $30-$40 from a charger from Google or an approved charger is just smart for the long term and not risk losing $700. Just my 2 cents. I did the same for the car charger.
Sure, I hear your point. But honestly I know that it is better for the battery to charge slower, so I would rather use a low power charger next to my bed each night, and only use the included quick charger when I need a quick top-off.
BlueWRXPride said:
Sure, I hear your point. But honestly I know that it is better for the battery to charge slower, so I would rather use a low power charger next to my bed each night, and only use the included quick charger when I need a quick top-off.
Click to expand...
Click to collapse
Have to consider 2 points since there are so many inaccuracies about this subject:
1) Inadequate chargers with insufficient output cause batteries to become overheated, consequently reduce battery charging cycles. Smart batteries are not adversely affected by certified quick chargers.
2) Turbo chargers do not "top off". When a battery gets to around 80%, the appropriate charger begins its slower charging as to not overload it. Once at 100%, charging stops, and the maintenance process begins. As battery level drops to around 97.6%, trickle charging begins.
In sum, a certified, OEM-equivalent quick charger, even with higher output would not damage batteries.
The phone supports most standards however usb c and Qualcomm quick charge are not compatible and you fall back to 5v 3 amp at best. Make sure to fully insert the cable into the phone. It has to click. I've accidently not charged overnight that way.
I've got a bunch of turbo chargers that I've accumulated over the years. Using a non-[manufacturer of current phone] charger has never damaged my phone. I just bought a 10 pack of USB C adapters and popped one on every charger so I can continue using my old ones. No issues yet and I don't anticipate any.
Sent from my Pixel using Tapatalk
joshw0000 said:
I've got a bunch of turbo chargers that I've accumulated over the years. Using a non-[manufacturer of current phone] charger has never damaged my phone. I just bought a 10 pack of USB C adapters and popped one on every charger so I can continue using my old ones. No issues yet and I don't anticipate any.
Sent from my Pixel using Tapatalk
Click to expand...
Click to collapse
Sure, you can use non-oem chargers. That's not the problem. Issues only potentially arise when the chargers do not provide adequate output, or their "smart" capabilities are not up to specs. I use all kinds of chargers bought at Verizon, Best Buy, etc. I also use Amazon chargers as long as they're not too far off OEM requirements. Also, people don't think about the importance of a good, thick cable.
I have a ton of Samsung fast chargers and Samsung USB a to c cables . Would those be safe?
parmend said:
I have a ton of Samsung fast chargers and Samsung USB a to c cables . Would those be safe?
Click to expand...
Click to collapse
Many will say no big deal. However, I'd say let's hear it from the horse's mouth. Here's Google engineer Benson Leung https://plus.google.com/+BensonLeung/posts/cEvVQLXhyRX. You be the judge.
Bottom line, to answer your question, no, quick charging methodology used by Samsung and Motorola is not supported by the Pixel. Your phone will charge at a slower rate. Will it damage the phone in the long run? Likely not. Well, I'll let you guys test for me.

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