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[Q] Charging Problem

Hi,
I am having trouble charging the battery on my Transformer past 55%. This is true when I charge from an AC outlet as well as via USB port and also when completely powered off.
Also, I get no icon indicating that it is being charged at all even though it does seem to charge up to about 55%.
I called Asus tech support, but they were no help.
Can anyone offer any solutions / suggestions?
Thanks.

You can charge from a USB port? I thought that they did not provide enough current and you have to use the provided adapter.

Apparently you can as long as the unit is in sleep mode.

But from what I understand, it takes a LONG time to charge through the usb port from a computer.......even when the screen is in sleep mode.......but I could be mistaken.

JoeJags said:
But from what I understand, it takes a LONG time to charge through the usb port from a computer.......even when the screen is in sleep mode.......but I could be mistaken.
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Thats what the engadget review said....
something about 10+ hours to fully charge it on usb

I was feeling a bit off about it being charged through an adapter but then i realized... it has what.. ? 9 hour of use before needing a charge? thats not counting the dock. i doubt ill ever use it that much and not come across an outlet to charge it lol. only time i can think of is on a long drive (which i rarely ever do) even then though, it probably has a car charger as an accessory

Charger died

So my co-worker has an Asus transformer like i do and he is on his 3rd charger for it. So i have been lending him mine while he waits for his new one. So last night he borrowed it and when i went to charge mine it no longer works. Are the chargers really this faulty or could it be his device that is killing the charger?

After charging my tablet for a while or overnight the charger does not work either.
So what I do is either wait it out or throw it in a ziploc bag and toss it in the freezer(I can't remember where I found this tip but it does work).
The charger gets excessively hot after 2 hours of straight charging and as a safety feature I believe it shuts off. Throwing it in the freezer simply resets the charger I believe, and it is only for about 15 minutes.
Sent from my Inspire 4G using XDA Premium App

betadan said:
So my co-worker has an Asus transformer like i do and he is on his 3rd charger for it. So i have been lending him mine while he waits for his new one. So last night he borrowed it and when i went to charge mine it no longer works. Are the chargers really this faulty or could it be his device that is killing the charger?
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Click to collapse
They definitely have different versions, the later version 0B-2LF, 0B-3LF (?) are supposed to be less failure prone.
You can always make a Do It Yourself (DIY) charger with a wall charger and USB A Female to 5525 Plug Female Power Adapter.

I’ve got similar experience – when I’ve tried to charge tablet second time after few hours of playing with it, when I’ve plugged charger in, icon didn’t show me expected “charging” icon. At first I’ve thought that was faulty cable but plugged to PC worked fine. Then I’ve found some info that connectors between charger and plug adaptor tend not to have a contact. I’ve taken out plug adaptor and bent slightly those 2 wires on charger, then connected the plug adaptor back. When I’ve plugged it into wall socket – it worked. I’m on 0L-1LF model.

I've encountered this problem too. At first I thought the charger was dead, but when I rebooted the transformer while plugged, it start to charge again. Maybe you should try that.

It probably still charges or has some charge optimization like my Lenovo laptop has. Mine does the same but never any issues.
Sent from my Transformer TF101 using Tapatalk

ThEiiNoCeNT said:
After charging my tablet for a while or overnight the charger does not work either.
So what I do is either wait it out or throw it in a ziploc bag and toss it in the freezer(I can't remember where I found this tip but it does work).
The charger gets excessively hot after 2 hours of straight charging and as a safety feature I believe it shuts off. Throwing it in the freezer simply resets the charger I believe, and it is only for about 15 minutes.
Sent from my Inspire 4G using XDA Premium App
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I also did have to put my charger in the freezer... for over a month now it's been working fine.
Try it

Elzbieta said:
I also did have to put my charger in the freezer... for over a month now it's been working fine.
Try it
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Another succesful "freezer" here.
To document - My powerstrip turn off with PC and charger is plugged in to it. Tablet was @ < 20% when I put on to charge, not realizing strip was off (company in town so wife wanted it off in case room was needed for kids), got up next morning and now tablet @ < 4%. Took charger and tried multiple outlets and none would charge and charger was not warm. Tablet @ < 4% and now plugged to USB port on laptop (recongized USB Debug and Asus Sync) so it is trickle charging sort of. Search turns up this (and a couple of others) tread. Turned off tablet (to improve trickle charge performance) and waited the 15 minutes. Removed charger from freezer, plugged into wall, plugged in tablet and tablet turned on and now shows as charging.
I assume this is a hardware/software/firmware problem in that the charger is not going to burn itself out trying to push too much voltage and the reduced charge state of tablet is raising resistence and the firmware has a pointer wrong and it needs to be a little colder to be right.
No idea but thanks for the tip.

I got kinda freaked out when my charger didn't work with my tablet last time. I blamed the custom rom since it happened a couple days after I rooted and flashed a custom rom on it, and I never had trouble with stock before. But, it wasn't the charger, since I plugged in the dock and it could charge. So maybe sometimes the tablet doesn't take in a certain amount of voltage or something..? (It was fine after I rebooted.. or update roms, can't remember.)

I once thought that my charger had died but then I tried a hard reset (hold the power button down for 10 seconds) and it started working again. It's worth giving it a go before you go out and buy a new charger.
Sent from my Nexus S using XDA App

betadan said:
So my co-worker has an Asus transformer like i do and he is on his 3rd charger for it. So i have been lending him mine while he waits for his new one. So last night he borrowed it and when i went to charge mine it no longer works. Are the chargers really this faulty or could it be his device that is killing the charger?
Click to expand...
Click to collapse
I think there is something off with his TF if it killed 3 or 4 chargers.

My charger died and no amount of putting it in the freezer or anything else would make it work again.
The only thing I did was pull the cable out attach the TF to my laptop and download files to a different Micro SD card I had bought. Plugged it back in and no workie.
Lucky I had bought another charger for a spare and had it to check the cable ..charger and make sure it what part actually wasn't working...and charge my TF.
It's at an ASUS service center hopefully being fixed.
They do go bad. Theres been documented problems with them just like the dock,, and tablet. When your trying to build the cheapest tablet around ...parts and some things provided by other manufactures ( I know Asus doesn't make everything that goes into it) don't always turn out as well as you've planned.

[Q] My TF101 wont charge but it connects to the computer

Well I let it drain all the way one day by accident. Then when I tried to charge it with the stock cable and a non-stock brick it would take hours for it to charge fully. Also it did not charge while it was on and being used. It would have to be turned off for it to charge. So I quit on it and left it in the dust for 3 months. I then bought a new cable thinking that the cable was the problem (it was a 3.0 USB cable). it was also a fail. It charges slower than before. I dont know what the problem is. While it was on 3% battery I did a factory reset thinking that would fix it. It completed and still nothing. is it broken? Or am I doing something wrong?
help me please!

ThirdChime said:
Well I let it drain all the way one day by accident. Then when I tried to charge it with the stock cable and a non-stock brick it would take hours for it to charge fully. Also it did not charge while it was on and being used. It would have to be turned off for it to charge. So I quit on it and left it in the dust for 3 months. I then bought a new cable thinking that the cable was the problem (it was a 3.0 USB cable). it was also a fail. It charges slower than before. I dont know what the problem is. While it was on 3% battery I did a factory reset thinking that would fix it. It completed and still nothing. is it broken? Or am I doing something wrong?
help me please!
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Turn it off. Connect to your PC's USB port for 6-8 hours. Put the ASUS charger in the fridge for 30 mins while pc charging. Then allow charger to warm up to room temp and plug into TF101 and it should charge.

Rumbleweed said:
Turn it off. Connect to your PC's USB port for 6-8 hours. Put the ASUS charger in the fridge for 30 mins while pc charging. Then allow charger to warm up to room temp and plug into TF101 and it should charge.
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Thats not the problem. I have multiple back up chargers. I have two Samsung GS3 chager bricks. They charge perfectly. The cable is brand new. The tablet just wont charge quick after 3 months of battery being drained. IDK what to do... :crying:

I was told there is a switch on or near the battery for this problem, don't quote me on it, I am just repeating what I was told and have not tried it myself but if you have nothing left to try, it might be worth checking

ThirdChime said:
Thats not the problem. I have multiple back up chargers. I have two Samsung GS3 chager bricks. They charge perfectly. The cable is brand new. The tablet just wont charge quick after 3 months of battery being drained. IDK what to do... :crying:
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I had the exact same problem, was hard to solve but it ended up not being tbr charger cable but the charger brick. Using a different brick for the tf doesn't work,. I bought this http://www.amazon.co.uk/gp/aw/d/B0081PVGZE/ref=mp_s_a_1?qid=1352114943&sr=8-1&pi=SL75
and never looked back, charges very quick as well.
Hope this helped.
Sent from my LT30p using xda premium

It seems A LOT of people have this problem with their charger on the Asus tablets. The problem is the power brick not supplying the required 15V to charge the tablet. It still supplies the usual 5V which makes it charge very slowly and ONLY when the screen is off or the whole device is turned off.
Anyway... either buy yourself another charger (those cheap ones on Ebay for $11 will do the trick) or make your own from a spare 12V power supply you got laying around the house and female USB cable end (like I did!).

ThirdChime said:
Well I let it drain all the way one day by accident. Then when I tried to charge it with the stock cable and a non-stock brick it would take hours for it to charge fully. Also it did not charge while it was on and being used. It would have to be turned off for it to charge. So I quit on it and left it in the dust for 3 months. I then bought a new cable thinking that the cable was the problem (it was a 3.0 USB cable). it was also a fail. It charges slower than before. I dont know what the problem is. While it was on 3% battery I did a factory reset thinking that would fix it. It completed and still nothing. is it broken? Or am I doing something wrong?
help me please!
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I don't want to buy a charger that does not work. What is my best bet for buying a good US charger for my broken transformer.

[Q] Forever to charge...

Hopefully I don't get flamed for this as I have been doing searches but so far nothing...
I got my HTC OneXL and that night I flashed Viper onto it. I don't know if it's the ROM or the phone itself, but it takes a really long time to charge. I plugged it in 2 hrs ago at 50% and I'm only now at 60%.
Battery life is hard to know length as I've had the phone a week and have been customizing and setting it up etc.
Is the charging a known issue to the phone or is it the ROM? I'm coming from the Iphone 4S and that thing charged up really fast.
Any help is greatly appreciated!!

Charging it from the pc or from the wall? Using the cable and power adapter it came with?
10 percent in 2 hours is slow. Typically in 2 hours I'll get about 50 percent or more.
If you have a 30 day faulty return policy I would take advantage and make sure they replace the power adapter too. Typically they would of course but I thought I'd specify just in case they wouldn't want to for whatever reason.
If you don't have a return policy available, I would try another usb power adapter for a couple hours as that would be my first guess as the culprit for this though it could also be an issue within the phone.
Sent from my HTC One X using xda app-developers app

I had the phone given to me and it didn't come with the original cord. I'm using the cord from my Xoom so that could be it...
Sometimes I use the wall charger, sometimes my pc and sometimes the USB port in my car. Guess I'll have to try and track down the actual cord and see if that works. It'd be cool if those dots on the back had an actual charger that worked for them!

ChandraKoo said:
Sometimes I use the wall charger, sometimes my pc and sometimes the USB port in my car.
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Charging from a PC is slow, and from a car is extremely slow. If the 10% in 2 hours is from car charging, it would not surprise me, and pretty normal.
MicroUSB chargers or cords from most phones will work just fine on the this device, but don't know about the Xoom. I suspect either the charge source (car, PC) or cord may be the issue here.
Also keep in mind, that after a ROM flash, the battery meter is not completely accurate. You have to do a charge cycle to full, then drain to 10-20% for the high/low "flags" to be properly set. This might be part of the issue. But I haven't seen it cause such a slow increase in readings while charging, so I don't think its your main problem.

TF700 not charging

I mean, after almost a year of having this thing, this is the first time I've experienced something like this. I thought that my surge protector might have had something to do with it, but no matter where I plug it the dock/tablet combo won't charge. I even tried charging the tablet by itself but that didn't work either and I also thought that it might have been the cable, but my PC still detects the tablet.
I'm running an older version of cleanROM from around the month of May if it helps in some way. I would turn the tablet on to check, but I want to preserve the remaining 5% in order to fix this problem.

rikkoko said:
I mean, after almost a year of having this thing, this is the first time I've experienced something like this. I thought that my surge protector might have had something to do with it, but no matter where I plug it the dock/tablet combo won't charge. I even tried charging the tablet by itself but that didn't work either and I also thought that it might have been the cable, but my PC still detects the tablet.
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Seems like a defective cable or tablet. If the tablet doesn't even charge from the dock, it looks more like a defective tablet. If the dock doesn't charge without tablet, it may also be the cable or the charger.
Try this: Keep the tablet off and connect it to the PC (without dock) for a couple of hours - that should charge the battery very slowly (a few % per hour).

Common Probem
I have had similar problems with my TF 300. After researching more of this I find that most of Asus tablets have similar problems. One is the charging cube tripping an internal breaker and allowing only 5v to come out and trickle charge the unit. Some have placed in freezer or just allowed to cool and they seem to work. Others have just had a no charge problem. The battery symbol comes on when you attach the charge cable then disappears but does not show a charge. Some actually turns on a tablet that was off after attaching the cable but still no visible charge. Some will still charge, they just take longer to charge. It seems Asus knows this and it can happen from a few months old to 1-2 yrs old. Now I'm not sure about most people but to pay $400+- for a tablet and get only about 2 yrs usage is not acceptable. I can understand technology passing a tablet or laptop by, that's technology, but for a product to only have a 2 yr life expectancy is not really allowable and should be addressed by Asus. Hook it up if this is not to old of a thread and try it. It may charge even though it doesn't show. If someone else is reading this with a similar problem then try what I have written. It may still charge even though it says it's not. Write Asus and complain. It seems Asus is a very expensive product to fix also. Galaxy Tabs seem to be a very inexpensive product to fix so they may be a better choice for a very similar tablet. :fingers-crossed:

TF700T not charging
I read in one of the threads to put the charger in the freezer for a few minutes and it worked. Thank you.

EskuroKinebi said:
I read in one of the threads to put the charger in the freezer for a few minutes and it worked. Thank you.
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Yes, same thing, only I thought the charger wasn't working, ordered a new one (still waiting), left it off the charger for about 30 hours but on the PC, then connected the charger up again and now it's charging!