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[Q] Can't charge, won't charge

Plugged in Transformer last night to charge it up overnight when the battery hit 30%. I updated the firmware yesterday morning and everything was going swimmingly.
Woke it up this morning, and found it was at 9% battery remaining and had a low battery warning. I had a closer look and the battery icon shows no indication that it's charging when it's plugged in.
Right now I've plugged it into a bog-standard USB charger and turned it off, hoping it'll trickle charge (damn the lack of a charge LED!) and that it's a fault with the power adapter rather than the device itself.
Anyone else had this issue?

I had the same problem a few days ago, my charger was plugged in via a multi block and it would not charge.
I even went to the extreme of taking my device back to comet in the hope I could swap the charger out with their demo unit.
Man behind counter plugs my charger into some sort electrical surge protected socket and it starts charging straight away leaving me looking like a right tool standing their. (and they tried to sell me 3 years extended cover)
Brought it home and plugged it into the very socket where it wasn't working and what do you know? It starts working!
Not sure what the issue was but it now works again.

Ok well that's good to know!
On trickle-charge it's now gone up by 2% since I posted.
Looks like the power adapter has its own faults...

Oh, and what do you know... plugged wall charger back in (it's been unplugged for 20mins) and now it's all happy and charging again.
Hooray.

yeah maybe that 20 minute trip to comet fixed mine too..

the USB mains adapter plug has a fatal flaw - the middle part of the usb connection isn't as sturdy as it sould be so it is easy to plug a USB port in the wrong way around and it looks and feels plugged in correctly as the middle part just moves out of the way.
If it isn't charing always check to make sure the USB connection is in the right way around in the plug.

I am bummed about this proprietary power connector; and apparently proprietary USB cable with extra pins (negating the use of USB extension cables). I wish the TF had a standard round power adapter similar to the Acer A500.

Thank God, i thought i was the only one. Had exactly this problem with mine when it arrived a couple of days ago, i am lucky enough to have lots of USB chargers around so i tried and tested various combinations and tried to charge other devices with the asus charger.
The problem lies as far as i can see, entirely with the charger unit. The charger comes in two parts, one is the usb dock and the other the relevant country plug. The way the plug fits onto the face of the charger is the important part. There is a central 'locating pin' made from plastic and two contacts that slot into the charger carrying the live and negative. The construction of this part is very, very poor. The tolerances are not a match for the quality of the plastic, the T shaped plastic locater does not actually locate the bottom pins properly and needs a great deal of force to lock in placce, and here is the best part, it doesnt like STAYING locked. As the plastic is weak, and we are looking at just a couple of mm here, it will snap, that will stop there being a clean contact and no charge. As a remedy, i have secured the face plate to the charger very tightly with a high tech rubber band
I agree, the use of specific power connectors in this day and age is just as dumb a decision as any manufacturer can make, and the rate it recharges at from a USB to PC connection can only be described as comical, a full recharge in 26 hours . Aside from all that its nigh on perfect, but i can see power related alternatives being VERY popular until Asus catches up with the rest of the electronics industry.

havent even had mine an hour and i havent done the update because its not at 50% and it will not charg at all. when i first tried to start it i thought it was doa because it would not turn on. guess ill take you guys advice and leave it unplugged for a while. i hate the charging cable is so small too that definately sucks.

Hmmm... if only a few other people created topics about not charging...

[Q] TF101 NOT charging

Is anyone else having an issue with charging? it worked fine for a week or more. now when i plug it in, to any outlet, it wont charge at all.. they are considering RMAing the entire unit, and im going to be torked off if i have to wait weeks to get another. argh.
just curious if anyone else is having charging issues.
thanks

My unit doesn't charge if the battery is above 90%. I see no problems there, what % is your battery at? That is expected behaviour to an extent to prevent overcharging of the battery.
Sent from my Transformer TF101 using XDA Premium App

Mine did that once and I just left it alone for awhile and it started to work again on its own.

i only noticed it because its asking me to connect to charger now.
so its at 11% right now.
Tech wanted me to trickle charge to see if i get anything out of it. Its not working.
Is there any lights on the adapter? i cant remember? but i think the unit may be bad.
SOOOOO pissed, now i have to wait weeks for a replacement to show up.
Has anyone else had a unit they have had to RMA??? is so, did they send a brand new one, sealed in box? if so, i have an extra here, ill just use it and sell the RMA one when it comes in.
thanks
EDIT: i had it trickle charging in the off position. just turned it back on. then plugged it in to wall. seems to be charging now.. WTH. wonder if its something with the dock?

Thanks
Hi
Nice to have found your thread on this - mine was doing the same thing after I had if docked. Connected it to my PC and synced and then put it back in the charger and everything is fine.
Weird.

Since you guys seem new to this forum, I suggest you read the stickies. The "Ultimate Transformer Information Thread" mentions some specific adapter issues you should be aware of.
http://forum.xda-developers.com/showthread.php?t=1068593

TF101 not charging after run flat issue - SOLVED
Hello
I also had this problem. The tablet drained the docking station dry, and then neither device would charge from the adapter.
I solved the problem as follows:
1) Remove table from docking station.
2) Turn tablet off completely.
3) Plug tablet only into the charger, at this point the tablet turned on, and began charging.
4) Allow the tablet to charge completely!
5) Reconnect tablet to docking station, and plug docking station into charger.
Voila, all charged Hope it works for others who have this issue!

Mine also had charging problems. When I charged it, it never reached 100%. I took it to the Asus repair center, and they called me today and said they got it to reach 100%. Also, above 90% it reports the battery status as full.
I also to them about the battery drain problem, and gave them my tablet with the dual battery widget installed. Told them to charge both the tablet and keyboard to full, dock the tablet, power off, and wait until morning to see the results.
I'll find out what happens tomorrow when I go see them in the morning.

TF101 not charging today...
It happened already once some time ago, but leaving the power adapter disconnected from the wall plug for 10min solved the problem.
Now it's happening again... and previous workaround is not working.
Tablet is TF101, no docking keyboard, last version of ICS installed.
I've checked the various threads for suggestions: of course I tried the various reboot options; the only thing I'm missing is the refrigerator, but the power adapter is cold (tablet is not charging since 2d, and battery is still alive...).
I've not checked the cable, but have cleaned with air the connectors (just to avoid dust inside).
Any suggestion is welcome.
Thanks

I have had my charger stop working twice in the past 6 months. Both times I put the wall adapter in a zip-lock bag and placed in my freezer for 30 minutes. Upon removing I plugged the usb cable back into the adapter and bam, everything was working fine again. From what I remember, there is a temperature sensitive circuit breaker inside the adapter that sometimes gets stuck. Even if the charger is cold or has been left alone it takes the dramatic temperature of the freezer to unsieze it. Good Luck it worked for me, twice.

Why did it discharge, and why won't it charge anymore?

Two days ago, I turned my Infinity off and docked it. Both batteries were fully charged. A few hours ago I picked it up again, and the tablet wouldn't turn on.
I plugged it into the wall outlet. It started charging and I was able to turn on the device. It had 0% charge, and the batteries on the dock were also dead. What I don't understand is: how can the Infinity and the dock discharge completely in that time even though it was supposed to be off?
I left it plugged in so that I could use it while it charges. After some time, it asked me to connect the charger and then turned itself off due to almost dead batteries. Cable was still plugged in, though the charging light was off.
Tried connecting the cable to the dock, no light. Tried connecting the cable to my computer, it didn't work. So, the cable must be faulty, right? I can still turn the Infinity on, it'll boot normally and turn itself off after it's reached the lock screen. There's a red exclamation mark on the battery icon that wasn't there in the first time I turned it on, does it mean anything serious?

I had it drain to zero once overnight. Wasn't completely charged but it was strange... hasn't happened since in fact it generally has very good battery life.
I would definitely try a new cable and or charger.

Yeah, I've asked the store for a new cable. They'll have to mail it to me, so my tablet will stay dead for a few days. Now I know why propietary connectors suck.
Anyway, it seems I'm not the only one that had problems with the charger. Many people have reported overheating, but that never happened to me. The adapter that came with my Infinity seems to be a newer model; the plugs can't be folded or detached.

Charger: I had that happened several times to the SL101. Turned out I had something else plugged into the USB and the adapter was overloaded and tripped. Unplugged for a little while for it to cool down and reset itself.

What do you mean you had something else plugged into the USB?
Anyway, I've left my adapter alone for quite some time. I'll go see if it works as soon as I get home.

Beibin said:
What do you mean you had something else plugged into the USB?
Anyway, I've left my adapter alone for quite some time. I'll go see if it works as soon as I get home.
Click to expand...
Click to collapse
I was charging a small 700 mAh battery through the USB. That was enough to trip the AC adapter.

[Q] Battery not charging

I touched on this in the EOS thread, but I've discovered it's probably not the ROM's fault and some other problem. I was staying in a very old hotel, which I assume had very poor electricity (not sure if relevant, but wife's iphone was charging slowly too, so maybe it could be part of the problem - way too low voltage or something). Plugged the (TF101) in and it charged barely, if at all. If I recall, the wall adapter got hot on the first try (didn't really take much notice as this has happened semi-frequently since I got it - might describe it more as "warm" in the past, where in this case I'd call it "hot") and from then on probably charged to about a max of 25% in 24 hours. So assuming the problem was the hotel, I tried it again at home, where I knew it always worked, and it still doesn't charge. so...
TL : DR - charger isn't charging - thought it was the electrical supply but it's not (though it could have started the downward spiral of breakage)
I tried freezing the adapter, bending pins, hard reset/cold boot, etc as per different threads on the subject. Didn't help.
Tried plugging the USB cord into a PC and it shows up as a connected device - doesn't show charging on the Transformer, but I don't think it's supposed to - so I think that means the cord is okay.
I plugged a Blackberry with its USB cord into the wall charger and it shows "charging" so it would seem that part is okay - but not necessarily definitive proof as it's a completely different device, just my only other USB device I could test.
This all happened right after flashing the newest EOS Jellybean ROM (from #70 to #72 - no full wipe - cache & dalvik wipe only), but I've switched back to Megatron, which worked perfectly in the past, and nothing changed with the charging. So unless it's possible for parts of the EOS ROM to remain (after a full wipe this time), it would seem the problem is with the charging circuit or the battery itself, right? Not sure what steps to take to test that.
I think I will probably try a new charger anyway, as that seems the cheapest of the $$$ options to try first, but are there any tests I can do in the meantime without spending money on replacement parts? At the moment I have it plugged in with the power off to see if that does anything - will update with any positive results
(Sorry for long-winded question, I wanted to get as much relevant info in there as possible. Hopefully I got it all)

Start by buying a new usb cable, that fixed my issue. Wall socket and usb port only trickle charged my tf101 (about 48 hours for full charge) tried all the freezing, bending pins but nothing worked. I then brought a new usb cable as a last resort (Wall warts are quite expensive so i was apprehensive of buying a new one) and it started charging straight away. seemed strange because the charging issue was just out of the blue (No damaged to the cable)

doubt this needs an update, but my new charger and (longer!) cord came today and it's charging my tablet perfectly. thanks for the info
now to catch up on 2 weeks worth of ROM updates

Dunno if its the right thread but I was also wondering:
My TF101 charges perfektly with the Wallcharger (TF to USB Cable + Adapter). But as soon, as I put
an USB-to-USB-Cable between Adapter and TF-USB-Cable to enlarge the range ... it wont charge anymore.
But: if I connect the same config it to my PC... I'm fully able to Up/Download/ ADB etc... so it can't be the connection
at all.
What's the trick? What am I missing?

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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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!