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[Q] Charging ASUS transformer using computer?

I wanted to know if it is possible to charge the ASUS transformer using a computer?
Is there any hack for it?

umasood said:
I wanted to know if it is possible to charge the ASUS transformer using a computer?
Is there any hack for it?
Click to expand...
Click to collapse
IIRC it will charge if the transformer is turned off but very slowly
Sent from my Transformer TF101 using Tapatalk

When I was driving the other day with it connected to the USB charger in the car (same as PC USB) and it got 4% in about an hour.

isnt this the biggest DOWN SIDE of TF.
Like this is such a basic feature these days that you should be able to charge your android device using PC usb/ charger etc.
I thought there would be some hacks for this. or is this a hardware specific lacking?

The USB plug on the Sync/Charge cable of the Transformer is a USB 3.0 plug. It uses the extra pins of the USB 3.0 for the electricity to charge.

umasood said:
isnt this the biggest DOWN SIDE of TF.
Like this is such a basic feature these days that you should be able to charge your android device using PC usb/ charger etc.
I thought there would be some hacks for this. or is this a hardware specific lacking?
Click to expand...
Click to collapse
I don't think this issue is specific to the Transformer. I seem to recall that the iPad comes with a high-current charger, and charges slowly if done via a computer. I think the issue is that the battery is much larger than any smartphone battery, and the USB port spec was created to power things like mice and USB memory sticks, and provides a low current. This way it also won't overload the host computer's power supply and cause stability issues on the computer.

nxt said:
The USB plug on the Sync/Charge cable of the Transformer is a USB 3.0 plug. It uses the extra pins of the USB 3.0 for the electricity to charge.
Click to expand...
Click to collapse
the extra wires in USB 3.0 cables are for higher speed transfers the voltage is still 5.0V the TF uses one of the wires to signal the power supply to provide 15V vs 5 V. The connector is not a true USB 3.0 If you want to charge mobile ,just connect the 12VDC from your vehicle to pins 1 and 4.

After reading this i put my transformer in the USB 3 socket and hey presto... trickle charge enabled! It doesnt say that its dojing it but mine went up from 95 - 96% in the 10 mins i had it pluged in (whilst on it)

mazimo said:
After reading this i put my transformer in the USB 3 socket and hey presto... trickle charge enabled! It doesnt say that its dojing it but mine went up from 95 - 96% in the 10 mins i had it pluged in (whilst on it)
Click to expand...
Click to collapse
Awesome, it would only take like 16h to charge it from empty to full then! ... compared to ~1.5-2h depending on use with the 15v charger.
But if you want to charge it from the PC, just hook it up to the 12v rail on the PSU (build a molex to usb adapter or similar)
Edit: what would be interesting though, is if you could charge and sync at the same time by connecting the data cables to a usb port, but keep the power cables hooked to the 12v rail. Or maybe the TF shuts down all sync stuff when its charging...

Just a quick update... After 6 hours if gone up to a whapping...... 76%
I guess it was just playing trick on me!!!! sorry to get peoples hopes up.

Go look at USB3.0 specs. You do not have the current and Voltage necessary to do anything more than a slow trickle charge. 3.0 os basically 2.0 with an extra pair of wires for faster data transfer not higher voltage. The connector on the TF charger is not wired to USB3.0 standards.

The AC adapter reconfigures itself when it recognizes the asus tablet and it gives 12v instead of 5volts. Just tried now and it's working.

Transformer does not charge anymore

First of all: Yes, I did use the search function. Yes, I did use google. But No, I did not find an answer to my problem.
Hopefully you guys can help me:
I bought a TF101 a week ago - it is used and came without the charger nor a data-cable.
So I bought an datacable off amazon which worked fine. But as we all know a usb port has not enough power to charge the tablet.
After looking around the Internet I build myself an molex to usb adapter which worked like a charm.
But now I plugged in the cable and it's not charging anymore. (8h ago it worked fine)
The cable is fine (PC can still connect to the transformer).
The adapter is fine (multimeter is giving out 11.56V)
Now when I plug in the cable it gives me a picture of a nearly empty battery.
I tried resetting the tablet - no effect.
Anyone knows this problem? Or has an idea how to fix it?
Transformer details:
TF101-1B032A
Android 4.0.3
Kernel 2.6.39.4 [email protected] #1
Build number: IML74K.WW_epad-9.2.1.24-20120503

I think you should first bought the Asus original charger instead which guaranteed supplying 100% correct voltages and ampere to your tablet. Does it charge via PC USB port now?

11.56V isn't enough to trip the HV charge, you need at Least 12V.
Try the ASUS charger.

Thing O Doom said:
11.56V isn't enough to trip the HV charge, you need at Least 12V.
Try the ASUS charger.
Click to expand...
Click to collapse
And the only way to confirmed this is by plugging the TF to PC via USB port and see if it still charging, or try the original Asus charger.
Using another adaptor with rating voltage safe to our TF doesn't guarantee it fit to the TF after all. There's always fluctuation in between the incoming and outgoing supply, and the transformer seemed to be a little sensitive to this tiny changes..
Sent from Transformer TF101 (B60) via XDA Premium HD

The cable could be faulty.
Mines was - and yes the pc still recognised the tablet when connected. Theres 4 pins in it compare to the usual 3 (i may stand corrected on that 1)
RMA confirmed this and Asus sent a new sync cable back.
Its maybe going to cost a few quid but as the rest of the guys have said - get an origional charger and cable.

Ok, first of all thank you for your help.
I would have bought a original Charger but could not find any in local stores nor amazon (.de) exept a traveller set which costs around 40€ (which is too way much)
I plugged the transformer (turned off) in my IPod wallcharger (5V1A) overnight and it charged.
Now I am really confused - why is it charging over the lower voltage output but not over the 12V?
//Edit:
Thanks to (the) Thing o Doom
I tried pluging the adapter to another powersource and it works. (I feel stupid to not tried this earlier) Seems like my mobile molex power supply is not fully working.

hyperkubus said:
Now I am really confused - why is it charging over the lower voltage output but not over the 12V
Click to expand...
Click to collapse
It's the build in power protection preventing your TF from catching fire from over fluctuation voltages supply. In ASUS original charger, it maintain the right amount of output even with uneven input supply. And the ipod charger has it as well..
Sent from my awesome rooted Defy: 2.3.6 XDA premium

Charging via USB

When I plug in my Infinity to start transferring stuff from my computer...it doesn't charge. I don't remember if I read if it worked or not? Anyone want to confirm? I know someone said something about the dock not being able to charge, but the tablet should.

KilerG said:
When I plug in my Infinity to start transferring stuff from my computer...it doesn't charge. I don't remember if I read if it worked or not? Anyone want to confirm? I know someone said something about the dock not being able to charge, but the tablet should.
Click to expand...
Click to collapse
I don't think the USB on a computer is powerful enough. My old iPad couldn't charge from a computer either.
Sent from my 3d porn machine.

Someone in the TF300 section mentioned that theirs would only charge from USB if it were completely off, and even then it charged pretty slowly. I wouldn't be surprised if the 700 were the same.

Mine charges when I hook it up on the USB port of an Ubuntu machine. But very slowly since the current is low.

I've heard a lot of different tablets don't charge via USB. That sucks...it just drains away battery while sitting there copying, slowly might I add, via MTP. I'm charging it now...I'll let it sit and transfer some more after a full charge.

Same, no charging from laptop.
I'll live though

wolfman87 said:
Same, no charging from laptop.
I'll live though
Click to expand...
Click to collapse
Well unfortunately the only way to move large files to my tablet is via MTP and if my battery is getting low then I'm screwed lol.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app

KilerG said:
Well unfortunately the only way to move large files to my tablet is via MTP and if my battery is getting low then I'm screwed lol.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Click to expand...
Click to collapse
Yea, I had about 24% battery when I rooted and it was worrying me to since it wasn't charging at the same time. Then I realized that 24% on a tablet is a lot more than 24% on a phone. Whew!

I hope it was not a dream but i plugged my tablet on my laptop and, while it was in halt mode (thus not power off per say), it charged itself up to 100%. So basically, my answer would be that it does charge itself on a computer, but it is far from being enough to cover both the use of a tablet and the charging process. And btw, since mtp is awful-as-hell slow, shouldn't we use like ftp servers or through-ssh transfers ?

Ralganaziel said:
I hope it was not a dream but i plugged my tablet on my laptop and, while it was in halt mode (thus not power off per say), it charged itself up to 100%. So basically, my answer would be that it does charge itself on a computer, but it is far from being enough to cover both the use of a tablet and the charging process. And btw, since mtp is awful-as-hell slow, shouldn't we use like ftp servers or through-ssh transfers ?
Click to expand...
Click to collapse
There are a couple of mentions in the manual regarding the USB charging.
The first one being "Ensure that your ASUS Transformer Pad is turned off before charging it via your computer's USB port."
And the second, "The ASUS Transformer Pad cannot be charged via the USB Dock cable when it is connected to the mobile dock."
So, I guess it proves that USB current is just not enough to sustain tablet's use and charge the battery at the same time.

sapienssapiens said:
Mine charges when I hook it up on the USB port of an Ubuntu machine. But very slowly since the current is low.
Click to expand...
Click to collapse
I know what you meant, but can't help noticing it should be about the speed of light anyway...

Some of the newer tablets are using usb3 charging plugs for the wall outlets. If you know some or have a usb3 port on a computer, you could try that and see if it charges faster than the us2 ports. The t300/prime/t700 all use usb3 plugs.
I transfer stuff by the micro sd card, adapter, and my computers card reader. It's not as convenient as plug and go but I'm usually transferring video files to watch at work and they are large.

Ralganaziel said:
I hope it was not a dream but i plugged my tablet on my laptop and, while it was in halt mode (thus not power off per say), it charged itself up to 100%. So basically, my answer would be that it does charge itself on a computer, but it is far from being enough to cover both the use of a tablet and the charging process. And btw, since mtp is awful-as-hell slow, shouldn't we use like ftp servers or through-ssh transfers ?
Click to expand...
Click to collapse
I thought that MTP was already bad, but adding the slow I/O on top of it is painful. What's the best way to transfer stuff?
Sent from my ASUS Transformer Pad TF700T using xda app-developers app

Some of the newer tablets are using usb3 charging plugs for the wall outlets. If you know some or have a usb3 port on a computer, you could try that and see if it charges faster than the us2 ports. The t300/prime/t700 all use usb3 plugs.
Click to expand...
Click to collapse
You hit the nail on the head. I think I saw someone here mention theirs would wall charge if they had used a usb extension with the wall charger - and it turned out that the extension was only usb 2 which prevented charging.

I posted a thread about this in the Q&A section.
Basically, from my own experiments and some other people's observations in that thread:-
If you are using the tablet while it is plugged into a USB port, the power will drain very slowly or maintain the same level.
If you plug it into a USB port and walk away, it will power up.
I left it plugged into a high power USB 3 port at 78% and left it for about 4 hours, when I returned it was at 97%. and it continued to read as "Not charging"
For some reason, when the tablet is plugged into a USB port, the battery info says that it's "Not charging" but it is.

I left it plugged into a high power USB 3 port at 78% and left it for about 4 hours, when I returned it was at 97%. and it continued to read as "Not charging"
-------------------
There is a small trickle effect of power which is why the manual says to have the tablet off. That trickle effect is what you are seeing. It could be a computer doesn't supply enough power to its usb ports regardless if it's usb2 or usb3. The wall adapter could be pulling more power in it's design. If you search amazon you can find non Asus data cables. I've used one on my prime after my cat chewed the original. I think it is like 6 bucks for the cable. I don't know there is an off brand product for the actual wall plug. But it's something to look into if your interested in having more than one recharging locations.

I'm not so sure that makes sense to me. 30% increase in power in 4 hours, seems like more than a small trickle effect of power, and doesn't the infinity manual says you can charge via USB.
Sent from my ASUS Transformer Pad TF700T using xda premium

USB is 5 volts. Asus Transformer uses like a 12 Volt Charger. On my TF300T, the pad would actually still lose battery life if I put it on performance mode (rooted 1.6 ghz overclock). On balanced it would depend on what I was doing. I imagine the TF700 is the same. On the plus side, because the charger is 12 volts, it also charges the battery a lot faster. Plugging in my ipad 2 into my iphone charger seemed to recharge so slowly.

I dont know about the tf700, but I downloaded the Asus Ai charger and i can charge the ipad2/3 and the ipad shows that its charging. It a different case when I tried plugging in the Asus transformer prime... nothing.. Its wierd and Asus charging program lets the ipad charge but not the prime.

pixel-painter said:
For some reason, when the tablet is plugged into a USB port, the battery info says that it's "Not charging" but it is.
Click to expand...
Click to collapse
This!
As much as I love this machine, its software is terrible.

TF700 charger/cable requirements?

I was planning on using my iPad charger to charge my phone, iPad, and TF700 while on the road. It puts out more than enough current at +5 volts but doesn't work with the TF700. The Asus charger outputs +15 and +5 and works with the Asus cable and an OEM cable, and also works charging my phone using a micro-B cable. Is the TF700 charged using +15 volts?
The TF700 booklet says it can be charged from a USB port, which is +5 volts. While that may be an impossible task on a PC, it still means that the TF700 can be charged using a USB cable and +5 volt charger. Why doesn't it work? Has anyone gotten a 2A +5V OEM charger to work with the TF700? Is there a pinout diagram for the Asus cable and charger anywhere? Thanks.

Not sure if this helps, but the keyboard dock (unlike the tablet itself) can only be charged from the charger, not usb, so it must draw more power than a standard usb.
It's also possible your Apple charger usb port is pinned to only work with "apple approved" products? Have you been able to charge other devices from it?
Sent from my ASUS Transformer Pad TF700T using xda app-developers app

phiffoo st o
Studiozut said:
Not sure if this helps, but the keyboard dock (unlike the tablet itself) can only be charged from the charger, not usb, so it must draw more power than a standard usb.
It's also possible your Apple charger usb port is pinned to only work with "apple approved" products? Have you been able to charge other devices from it?
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Click to expand...
Click to collapse
I don't have a dock nor am I trying to charge the TF700 from a PC USB port. The Apple charger puts out +5 volts to anything plugged into to it and the TF700 apparently "knows" when the Apple charger is connected to it because it turns on if it's off.

Haidozo said:
I was planning on using my iPad charger to charge my phone, iPad, and TF700 while on the road. It puts out more than enough current at +5 volts but doesn't work with the TF700. The Asus charger outputs +15 and +5 and works with the Asus cable and an OEM cable, and also works charging my phone using a micro-B cable. Is the TF700 charged using +15 volts?
The TF700 booklet says it can be charged from a USB port, which is +5 volts. While that may be an impossible task on a PC, it still means that the TF700 can be charged using a USB cable and +5 volt charger. Why doesn't it work? Has anyone gotten a 2A +5V OEM charger to work with the TF700? Is there a pinout diagram for the Asus cable and charger anywhere? Thanks.
Click to expand...
Click to collapse
It will charge VERY SLOWLY on 5v USB while turned off. Will not charge via 5v USB while on. The TF700 requires at least 12V/2A to charge while on. 15V/1.2A is what's recommended by Asus (based on their proprietary charger specs).
Here's a battery I use to charge my TF700 while on the go, and it also charges my phone, BT headsets and other devices. http://forum.xda-developers.com/showthread.php?t=1796750. Great battery, I highly recommend it.

AspenMan said:
It will charge VERY SLOWLY on 5v USB while turned off. Will not charge via 5v USB while on. The TF700 requires at least 12V/2A to charge while on. 15V/1.2A is what's recommended by Asus (based on their proprietary charger specs).
Here's a battery I use to charge my TF700 while on the go, and it also charges my phone, BT headsets and other devices. http://forum.xda-developers.com/showthread.php?t=1796750. Great battery, I highly recommend it.
Click to expand...
Click to collapse
You are correct. With the TF700 turned off, an hour of charging with the 2A Apple charger had increased the battery level from 29% to 34%. I expect the TF700 to be fully charged in only 14 hours!
Thanks.

Have you considered a power inverter? I use this one with my A100 though I use a FM transmitter to charge my phone.

Somewhat related to this: in the past, when using devices that have a power block with a USB port and a charge/sync cable, such as an iPod or even my Galaxy Nexus, I've used a USB extension cable to give me a little extra slack. For some reason, that doesn't seem to work with the Infinity. I've tried three different USB extension cables and the tablet never shows that it's charging. Is there a certain USB cable I can use for this?

AspenMan said:
It will charge VERY SLOWLY on 5v USB while turned off. Will not charge via 5v USB while on. The TF700 requires at least 12V/2A to charge while on. 15V/1.2A is what's recommended by Asus (based on their proprietary charger specs).
Here's a battery I use to charge my TF700 while on the go, and it also charges my phone, BT headsets and other devices. http://forum.xda-developers.com/showthread.php?t=1796750. Great battery, I highly recommend it.
Click to expand...
Click to collapse
I have that same exact charger. do you use the "I" or the "S" USB port?
I never knew what the difference between the two were
EDIT...i shouldve read the thread lol...you modified yours

I ordered a pair of cables from eBay item # 320942102464. A house charger and a car charger. I just plugged in the dock and seems to be working fine.

USB 3.0?
FrontRowJoe said:
Somewhat related to this: in the past, when using devices that have a power block with a USB port and a charge/sync cable, such as an iPod or even my Galaxy Nexus, I've used a USB extension cable to give me a little extra slack. For some reason, that doesn't seem to work with the Infinity. I've tried three different USB extension cables and the tablet never shows that it's charging. Is there a certain USB cable I can use for this?
Click to expand...
Click to collapse
Are you using a USB 2.0 or 3.0 extension cable? It's my understanding that the Infinity uses USB 3.0.

You need 15v to charge the Pad (I kept thinking 11, but the adapter says 5V or 15V output). This makes sense since there are more pins. Standard USB has 5v rails (ther are 4 pins, I 5v power, Data+, Data-, ground). Since our chargers are 40 pins, my assumption is that there are more pins dedicated to charging and multiple pins dedicated to data (possibly a few that are dedicated and some that are for whatever data is being passed through (assumption)). If the adapter is outputting 11v then it can send more power through the cord and multiple pins can push electricity through. When you are only pulling 5v (i.e. most AC->USB transformers) you will need a lot more time to charge, hence the trickle effect (and don't turn on the screen!)

It can be charged with 5v if the tablet is off.
There is a jumper in the USB cable itself that kicks the Asus charger into 15v mode so it doesnt accidentally fry your devices if you plug in, say, your cell phone to charge for a bit.
To make a custom cable just throw 15v across three pins in the connector (5v each). You can find all the info here: http://forum.xda-developers.com/showthread.php?t=1633747
Yes, i know its for the prime, the connector is exactly the same, the pinouts SHOULD be identical.

DIY approach?
I've got a TF700T and a TF201 dock and a misplaced charger. I ran into the same trouble that a lot of people here did ....... generic chargers not working, USB on my computer only trickle charges the tablet, nothing for the dock, etc.......
After much poking around I learned that both require 12 volts to charge. That said I dug thru my junk and found a 2.2a 12v DC wallwart. I hacked apart a USB extension cable for it's female end, broke out my breadboard and put together a 12v USB connector... that after several days of charging and draining.... charging and draining .... works like a champ.
So to be a bit more specific, pin 1 that's normally 5+ volts I'm supplying 12+. Pin 4 is ground same as always and that's it. If you wish let me know I can probably throw up a little illustration or something.
Since I did that I've refined the whole thing a bit, cleaned it up, wired everything directly and heat shrinked the whole assembly.
It will charge both together or either one by itself in just hours EVEN while using them..... heavily. No overheating, no troubles.
HTH

AnakiMana said:
Are you using a USB 2.0 or 3.0 extension cable? It's my understanding that the Infinity uses USB 3.0.
Click to expand...
Click to collapse
I think the cable type might only matter after the ics.30 update when I was on the ics.26 I could use a standard extention cable, I had my device plugged in when I updated and my device stopped charging, and I freaked out thinking I broke something. But after finally removing the extention my tablet would charge. I have not tried to use the extention cable since so I don't know if it works with jb.
Asus Transformer Infinity running CleanRom 2.7.x

Bluemgt06 said:
I think the cable type might only matter after the ics.30 update when I was on the ics.26 I could use a standard extention cable, I had my device plugged in when I updated and my device stopped charging, and I freaked out thinking I broke something. But after finally removing the extention my tablet would charge. I have not tried to use the extention cable since so I don't know if it works with jb.
Asus Transformer Infinity running CleanRom 2.7.x
Click to expand...
Click to collapse
The Asus charger switches its output to 15V from 5V when a USB3 plug is detected. If you need an extesion cable to charge the Transformer, you'll have to use USB3 extension cable. If you want to use this charger on other devices, be sure to use a USB2 cable to not to fry it with 15V.

Kraka said:
If you want to use this charger on other devices, be sure to use a USB2 cable to not to fry it with 15V.
Click to expand...
Click to collapse
Thanks for the warning - I hope there are no cables with USB3 and micro-USB2 plugs though.

[Q] recharging from pc

hello everybody,
my infinity does not recharge when plugged to the pc.
is that normal or what?
thank you

Yeah, mate. I think it's in the manual. Very slow trickle from pc if tab is plugged directly, almost no charge if you have it through the dock.

Mykew said:
Yeah, mate. I think it's in the manual. Very slow trickle from pc if tab is plugged directly, almost no charge if you have it through the dock.
Click to expand...
Click to collapse
not connecting from the dock, but directly and not even a trickle

It's normal. The USB port on a PC gives 5 Volt, the TF700 needs 15 Volt. Do the math
The Infinity Manual: (People, READ THIS THING.)
Page 10:
- Ensure that your ASUS Transformer Pad is turned off before charging it via your computer's USB port.
- Charging through the USB port may take a longer time to complete.
- If your computer does not provide enough power for the ASUS Transformer Pad, use the wall outlet instead.
Page 83, not relevant in this case, but to others who try:
- The ASUS Transformer Pad cannot be charged through the USB dock when it is connected to the mobile dock.
You got the manual in the box, and the volt values are on the charger. It's not that hard.

ShadowLea said:
It's normal. The USB port on a PC gives 5 Volt, the TF700 needs 15 Volt. Do the math
The Infinity Manual: (People, READ THIS THING.)
Page 10:
- Ensure that your ASUS Transformer Pad is turned off before charging it via your computer's USB port.
- Charging through the USB port may take a longer time to complete.
- If your computer does not provide enough power for the ASUS Transformer Pad, use the wall outlet instead.
Page 83, not relevant in this case, but to others who try:
- The ASUS Transformer Pad cannot be charged through the USB dock when it is connected to the mobile dock.
You got the manual in the box, and the volt values are on the charger. It's not that hard.
Click to expand...
Click to collapse
thank you very much for the explanation.
in my box i just got a quick start manual of 5 pages
not the complete manual
THANKS AGAIN

picatrixgm said:
thank you very much for the explanation.
in my box i just got a quick start manual of 5 pages
not the complete manual
THANKS AGAIN
Click to expand...
Click to collapse
You're welcome
You can find all full manuals here: http://www.asus.com/Tablet/Transformer_Pad/ASUS_Transformer_Pad_Infinity_TF700T/#download

picatrixgm said:
in my box i just got a quick start manual of 5 pages
not the complete manual
Click to expand...
Click to collapse
...and people don't even read that, because it's even mentioned in the quick start guide.

So a USB 3 cable and USB 3 motherboard port is no good either? no enough volts?

Syn010 said:
So a USB 3 cable and USB 3 motherboard port is no good either? no enough volts?
Click to expand...
Click to collapse
I don't think the tablet supports USB3, so it will probably just function like USB2.

This thread reminded me to try switching on the Asmedia charging support thru USB 3.0 on my Asus Sabertooth board.
Still a no-go since the TF700T wants 15 Volts DC for charging.
Kind of pisses me off that Asus advertises 3.0 mobile device charging for phones and tablets on their motherboards except for tablets Asus builds.
...idiots!

On a side note, I did find that if you need an extension cable for your Infinity (I find that the default one is a tad too short), you will need a USB 3.0 Cable. So, there is definitely some connection with 3.0 and the tablet. My 2.0 cables did not work at all. I bought this one from Amazon and it works flawlessly and is very cheap!:
http://www.amazon.com/gp/product/B003Y8DIRC/

The Transformer starts detecting a charge at about 12V. anything before that won't register. It does charge on a lower voltage, but very slowly, and only when off. Also, it doesn't indicate it.
USB 3.0 still only gives 5V, but where 2.0 gives it at 500Ma, 3.0 gives it at 900Ma. It's still only 5V, so the TF won't detect it.

huh....mine was charging just fine from my PC's USB port. I literally just got it today, plugged it into the computer and it started charging. When it had enough juice I turned it on and was playing with it as it continued to charge from the computer.

StormMcCloud said:
huh....mine was charging just fine from my PC's USB port. I literally just got it today, plugged it into the computer and it started charging. When it had enough juice I turned it on and was playing with it as it continued to charge from the computer.
Click to expand...
Click to collapse
Really?
Does yours charge from the desktop PC or is it a notebook?
Does the tablet charge from either USB port versions?
Wish my tab would charge from the PC.
Wonder why in hell this tablet needs 15 volts from the brick?