Hi.
I'm looking for an advise about car charger that can charge my TF700.
does anyone confirmed that there any car charger that works?
I mean, I saw some posts that says that ASUS' charger is 15v instead of the more common 5v?
but then I saw the charger, it says " Output : 5v === 2A or 15v === 1.2A"
So I assume I can use other car charger that works with other tablets?
can someone confirm this for me?
THANKS
The tablet will only start to detect a charge at 12V.
Charging at anything lower than that will charge about 1-3% every hour.
ShadowLea said:
The tablet will only start to detect a charge at 12V.
Charging at anything lower than that will charge about 1-3% every hour.
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oh. okay. any recommendation on what charger should i get?
preferably one with dual USB.
USB is not going to work, in any form or capacity. a USB port can only put out 5V at max.
I use a power inverter that puts out 230V (bought it for my laptop a couple of years ago) through a normal outlet. Plugged the charger into that and it charges normally. You could try looking into that.
ShadowLea said:
USB is not going to work, in any form or capacity. a USB port can only put out 5V at max.
I use a power inverter that puts out 230V (bought it for my laptop a couple of years ago) through a normal outlet. Plugged the charger into that and it charges normally. You could try looking into that.
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well. if that's the case. I might buy another wall charger...
william tanaya said:
Hi.
I'm looking for an advise about car charger that can charge my TF700.
does anyone confirmed that there any car charger that works?
I mean, I saw some posts that says that ASUS' charger is 15v instead of the more common 5v?
but then I saw the charger, it says " Output : 5v === 2A or 15v === 1.2A"
So I assume I can use other car charger that works with other tablets?
can someone confirm this for me?
THANKS
Click to expand...
Click to collapse
YES the ASUS Transformer will only charge from between 12 & 15V. They DO NOT charge from 5V USB.
I have found that the car chargers which have the ASUS 40 pin plug attached to the cable work fine. They have a regulator circuit which outputs 12V at 1.5A minimum.
The ones available on eBay work well and aren't too expensive. They are a little bulky because of the high current circuitry so look at the pictures and make sure that it looks bigger than the average ones and you will do fine.
unfortunately there's no car charger available as of yet.
Sent from my VS920 4G using xda app-developers app
An Carcharger is avilable, i have one and it is working. 15v 1,2A Carcharger with normal Asus connetor. I'm usin it since 2 Month, never had problems. Carcharger is even cooler as the 230V USB charger while charging. Asus Tabel also switch immediately in charging mode. 14€ at Amazon.de.
By the way, why is everyone saying 5V won't work? On my 230V USB charger there's following note "15V 1,2A or 5V 2A"
Well won't need it, just buy this one ( which i have):
www.Amazon.de/gp/product/B007PQ8AN6/ref=oh_details_o04_s00_i01
Just ignore that tf700t isn't written there and that the charger would have 1,5A. Thats wrong, Carcharger has 15V 1,2A.
If you won't believe me, i can make an picture ( that it will have 15V 1,2A and works) otherwise have fun with it
Speedmastersaxai said:
By the way, why is everyone saying 5V won't work? On my 230V USB charger there's following note "15V 1,2A or 5V 2A"
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Why aren't you reading everything? I said 5V charges too slowly for the tablet to detect, but it does charge. About 1-3% an hour, which is useless when you're using it. It clearly says, in the manual, that it will only charge over USB (5V) when turned OFF and not connected to the dock. RTFM.
SUH said:
unfortunately there's no car charger available as of yet.
Sent from my VS920 4G using xda app-developers app
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Click to collapse
I don't know how many different threads I have to post this in...
http://www.amazon.com/gp/product/B0081BFYY2/ref=wms_ohs_product
Includes a home charger, car charger, and an extra USB cable, that ALL work. I have been using these with my Transformer Prime, and now my Infinity without an issue at all, and they provide the ASUS required specs for charging and work just like the factory provided chargers.
I ran into this issue with my Verizon Samsung Galaxy Nexus. When attached to a charger, if I went into Settings...Battery... it would show the status of the charging process: it would say "USB" when connected to a computer, and charged at a much slower rate, or "AC" when plugged into the supplied charger in a regular outlet, and charged much more quickly.
With most car chargers, it would only show "USB" but there are some car chargers that have the correct wiring so that it was recognized as "AC" and charged as quickly as when plugged into a regular outlet.
I have two of these in my vehicles, and I just checked one of them, the one listed below first, and with the Tablet plugged into it, it shows as charging, as an "AC" source, just as with my Galaxy Nexus.
Here is the one I specifically tested and verified that it works:
Dual USB Car Charger
I do note the 2 negative reviews there, but all I can say is that I've had this one for almost a year, and it has worked perfectly for me with my phone. A brief test with the Asus Tablet confirmed it was seen as an "AC" charger.
This is the other one I have and which works fine with my phone, although I have not specifically tested it with the Tablet (I have no reason to expect it would behave any differently):
HTC T-Mobile myTouch 3G Car Charger
Obviously, I can't be held responsible if somebody else has a different experience with these, or has problems because of it. Just trying to be helpful and report what has worked for me.
You might consider the i-Blason 12V 2A MINI BULLET STYLE CAR CHARGER FOR ASUS Eee TRANSFORMER from Amazon (Sorry, but noobs can post links)
It's compact, uses your existing cable and delivers 12 VDC @ 2 A. Under $10 US.
Aviator47 said:
You might consider the i-Blason 12V 2A MINI BULLET STYLE CAR CHARGER FOR ASUS Eee TRANSFORMER from Amazon (Sorry, but noobs can post links)
It's compact, uses your existing cable and delivers 12 VDC @ 2 A. Under $10 US.
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It may work, or it may not. Drawing on my experience with the Galaxy Nexus, there were quite a few car chargers that had specs like this but which in fact were seen as "USB" chargers when used with the Nexus, and I suspect would behave the same way with the TF700T.
I am not an eletrical engineer, but it has something to do with how certain pins are shorted or not, and not all chargers that say they deliver the higher amperage will in fact do so with all devices.
It'll just take somebody to buy and try, and report what does or doesn't work. Per my post above, the chargers that work with my Nexus also work with my Tablet, in being seen as "AC" charging.
DLCPhoto said:
It may work, or it may not. Drawing on my experience with the Galaxy Nexus, there were quite a few car chargers that had specs like this but which in fact were seen as "USB" chargers when used with the Nexus, and I suspect would behave the same way with the TF700T.
I am not an eletrical engineer, but it has something to do with how certain pins are shorted or not, and not all chargers that say they deliver the higher amperage will in fact do so with all devices.
It'll just take somebody to buy and try, and report what does or doesn't work. Per my post above, the chargers that work with my Nexus also work with my Tablet, in being seen as "AC" charging.
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Don
I have one on order and will pick it up at my daughter's when we go to the US next month. Will post what I learn.
HOWEVER - a true "USB Charger" provides a 5VDC output, not 12- 15 VDC, as does the i-Blason unit I mentioned. Note that i-Blason states very clearly, "Warning: Pls do not use with other MP3 or smartphone... High Voltage could cause burn out."
The difference many smartphones (and other USB ported devices) detect in "USB Chargers" versus "AC Chargers" is max current available (<0.5 A vs >1.0 A) For example, I have a USB battery and a video cam that will both fail to illuminate the charging light if connected to a charging source below about 0.75 A, but still charge, albeit slowly. Both came with 1.5 A USB (5 VDC) wall chargers.
Since the i-Blason is a 12 VDC, not a 5 VDC output, the odds are high it will charge the Transformers at a rate very similar to the wall charger. At least based on electrical "theory". If I had to blind pick a third party car charger, the specs for the i-Blason, to include using the stock cable, were what influenced my choice.
Aviator47 said:
Don
I have one on order and will pick it up at my daughter's when we go to the US next month. Will post what I learn.
HOWEVER - a true "USB Charger" provides a 5VDC output, not 12- 15 VDC, as does the i-Blason unit I mentioned. Note that i-Blason states very clearly, "Warning: Pls do not use with other MP3 or smartphone... High Voltage could cause burn out."
The difference many smartphones (and other USB ported devices) detect in "USB Chargers" versus "AC Chargers" is max current available (<0.5 A vs >1.0 A) For example, I have a USB battery and a video cam that will both fail to illuminate the charging light if connected to a charging source below about 0.75 A, but still charge, albeit slowly. Both came with 1.5 A USB (5 VDC) wall chargers.
Since the i-Blason is a 12 VDC, not a 5 VDC output, the odds are high it will charge the Transformers at a rate very similar to the wall charger. At least based on electrical "theory". If I had to blind pick a third party car charger, the specs for the i-Blason, to include using the stock cable, were what influenced my choice.
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Appreciate the additional info - will be interested to see if it performs as hoped. I suspect it will, especially based on that warning.
Anyone know the charger specs needed to charge this from the keyboard while docked? I have a couple and its not touching it.
ang1dust said:
Anyone know the charger specs needed to charge this from the keyboard while docked? I have a couple and its not touching it.
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the tablet requires at least 12v
Anyone know alink to a wall charger for this tablet? I went to best buy today and found they have nothing to sell me to charge my tablet. I tried my friends IPad 3 wall charger and it doesnt work. Someone suggested 12v but i cant find any of these with a volt regulation spec just wats. If anyone can suggest a wall charger and link it would be great. Thanks!
ang1dust said:
Anyone know alink to a wall charger for this tablet? I went to best buy today and found they have nothing to sell me to charge my tablet. I tried my friends IPad 3 wall charger and it doesnt work. Someone suggested 12v but i cant find any of these with a volt regulation spec just wats. If anyone can suggest a wall charger and link it would be great. Thanks!
Click to expand...
Click to collapse
Link first.
5v @ 2amp
or
15v @ 1.2amp
The label from my stock wall charger.
ang1dust said:
Anyone know alink to a wall charger for this tablet? I went to best buy today and found they have nothing to sell me to charge my tablet. I tried my friends IPad 3 wall charger and it doesnt work. Someone suggested 12v but i cant find any of these with a volt regulation spec just wats. If anyone can suggest a wall charger and link it would be great. Thanks!
Click to expand...
Click to collapse
the original charger has a dual mode operation, if you stick a regular usb cable it will work as a regular usb charger - 5v @ 500-2000mah, if you stick asus transformer cable it will switch to 15v @ 1200mah
asus cable sport a usb 3 connector but uses it in an non-standard way, pin 7 is used to switch modes, if the charger find it connected it will go into 15v mode otherwise usb mode.
on the other side, the tablet wont go into "charging mode" if it dont find at least 12v on its connector so if you want to build a diy charger you'll need one that at least has these specs.
NixZero said:
the original charger has a dual mode operation, if you stick a regular usb cable it will work as a regular usb charger - 5v @ 500-2000mah, if you stick asus transformer cable it will switch to 15v @ 1200mah
asus cable sport a usb 3 connector but uses it in an non-standard way, pin 7 is used to switch modes, if the charger find it connected it will go into 15v mode otherwise usb mode.
on the other side, the tablet wont go into "charging mode" if it dont find at least 12v on its connector so if you want to build a diy charger you'll need one that at least has these specs.
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Will this work? http://www.digitalinnovations.com/chargedr-usb-charge-booster.html
al89nut said:
Will this work? http://www.digitalinnovations.com/chargedr-usb-charge-booster.html
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It might work but you will most likely damage your motherboard. Sucking more out than what is supplied will destroy it. Hence why FC mods are not highly recommended. Look at the specs of whichever computer you are going to plug that into. If it has sufficient power (most are standard 5v 500ma) USB ports. Just use caution. I personally just grabbed a powered USB charger. Meaning, there is a battery that can be recharged from a wall outlet, the charged battery then charges whatever i plug into the two USB ports. (up to 15volts) works great on my TF300T. However, i hardly need to use it. Battery lasts all day from a single charge overnight from the wall outlet.
al89nut said:
Will this work? http://www.digitalinnovations.com/chargedr-usb-charge-booster.html
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just buy an asus transformer compatible charger on amazon...
Even after cruising through some searches, I'm still trying to nail down the specifics of the cable and charger. The charger says it runs at 2A at 5v or 1.2A at 15v. Does anyone know why it has two listed and which mode it actually uses when plugged in?
Also, I'm interested in 'extending' the 5 foot charging cable and have seen it suggested to use a USB 3.0 extension cable. Can anyone confirm that this will work okay?
Lastly, I'm looking at the Antec UA4-25 charger to sorta consolidate my charging needs. Anyone have any feedback on this and whether it will work okay with the TF700 and/or a USB 3.0 extension like I mentioned above?
Thanks for any feedback!!
doncaruana said:
Even after cruising through some searches, I'm still trying to nail down the specifics of the cable and charger. The charger says it runs at 2A at 5v or 1.2A at 15v. Does anyone know why it has two listed and which mode it actually uses when plugged in?
Also, I'm interested in 'extending' the 5 foot charging cable and have seen it suggested to use a USB 3.0 extension cable. Can anyone confirm that this will work okay?
Lastly, I'm looking at the Antec UA4-25 charger to sorta consolidate my charging needs. Anyone have any feedback on this and whether it will work okay with the TF700 and/or a USB 3.0 extension like I mentioned above?
Thanks for any feedback!!
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Click to collapse
The charger can actually output both voltages. The 5V is used to charge regular USB devices. When you plug a Transformer, one of the USB3 cable pins is used for identification of the tablet. The charger then switches to 15V voltage. See this and this threads.
Any USB3 extension cable should be OK to use. I haven't tried that myself, but I'm sure it would work.
Hi Guys,
I've recently bought this power bank unit to hopefully charge my tablet while i'm on holiday, however trying it on the tablet seemed to just make the charge light flash quickly and it failed to charge the tablet. I was wondering if it was the voltage output since the ASUS charger says 5-15V chargers, and i'm not sure the voltage output of the bank.
Anyone else use a power bank for this? Any recommendations?
Thanks!
External battery discussion
There was some discussion about this at this link http://forum.xda-developers.com/showthread.php?t=1796750&page=4
basically it appears you need a battery that will deliver 12v output to the TF700. A catch being that most of the batteries I've seen use a barrel connector for their 12v output so you need a converter cable.
Best of Luck
Cheers, will check it out.
Meppolan said:
Hi Guys,
I've recently bought this power bank unit to hopefully charge my tablet while i'm on holiday, however trying it on the tablet seemed to just make the charge light flash quickly and it failed to charge the tablet. I was wondering if it was the voltage output since the ASUS charger says 5-15V chargers, and i'm not sure the voltage output of the bank.
Anyone else use a power bank for this? Any recommendations?
Thanks!
Click to expand...
Click to collapse
5v output isn't going to do it. I use the Anker 2nd Gen Astro Pro2. It has a 9/12V output jack. I can't find the thread now, but I learned about it somewhere on a TF700 forum. You will need to cobble up a cable to convert the included output jack cable to USB. I apparently can't post links as a new user, but searching as per info below should locate what you need. Set the Astro Pro2 to 12v, plugin the Anjer included cable to the DC out jack, plug in the adapter cable below to that cable, then the TF700 charging cable to the adapter. Ugly, but it works.
Anker 2nd Gen Astro Pro2 - from Amazon
USB A Jack to 5.5/2.1mm jack adapter [ID:988] - from adafruit.com