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[Q]About the dock battery

I bought a dock for my TF few days ago and today I drained the battery for the first time. It went to 3% and then started to use tab battery (or I think so) . Then I turned it off leaving the tab docked. After maybe 3 hours I turned it on and dock battery was at 1 %. I immediately undocked my TF and started charging the dock.
Do you think this is the famous dock drain issue? I mean is it normal for the dock battery to drop to 1 %? Isn't it supposed to stop using the battery when it's bellow 3% to prevent it from reaching ZERO and killing it.
Excuse me for the stupid thread.

I have a similar problem where my dock will no longer charge over 0%. The problem appeared out of nowhere, and I have no idea how to fix it. Nobody else seems to have found a definitive fix either. I might have to send it back to Asus

Battery loads spontaneously?

Hi,
I loaded my TR101 yesterday to 99 or 100% ( tablet, undocked), disconnected it from the adapter, used it for some time, and then shut it off. The battery level was around 75% then.
This morning I started it again and the battery level was 98%! So it tells me it loaded in the night from 75 to 98% from thin air. No adapter connected. The dual battery widget shows this too: battery level went up from around 75 to 98.
Is thre any explanation for this? I suppose the battery level is not really 98, but what happened? I conbected the adapter, and the it starts loading to 100%.
I am no twaeker, so I did nothing unusual. I installed all the system updates Asus gave me. Now I have Android 4.0.1.
Any thoughts?
Sent from my Transformer TF101 using xda app-developers app

If you docked it again once you shut it off then the dock would have charged it

*Detection* said:
If you docked it again once you shut it off then the dock would have charged it
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Click to collapse
Yes, I know that the dock charges the tablet battery, but the tablet has not been docked for two days!
BTW: When I started the tablet (undocked) up again after two hours, the battery once more said that it was charged for 98%.
I then used it until the battery said it was charged for 31%. I wonder how the situation will be tomorrow.

First, wipe battery stats if you can. Second, empty it out completely (be careful about the 0% bug) then do a full charge.
Recommended battery use is always to empty it out completely then charge it completely. It'll extend its performance and lifetime.

How do I wipe my battery stats? I cannot find any control to do so. My tablet is not rooted btw.
Anyway: This morning when I started it up the battery icon was red and it shut down by itself (empty battery?), but when I started it up then with the adaptor the battery stood at 17%. This might have been the real status after several wrong indications yesterday, I suppose. Battery health is displayed as "good".
It only seems a matter of wrong indication. The battery last the normal time, it seems to me.
I will let it go to down now util just a few % and fully load it again then.
The reason why I normally shut the tablet completely down when I do not plan to use it for several hours, is that the battery drains when the tablet is 'sleeping', but when I shut it down completely it later starts up at the same level when I shut it down.
This sees to be an issue Asus had to solve (you could read about it all over the internet when I fist noticed it) but as usual Asus is only intrested in upgrading its latest models and soon abandons active support for what they consider "older" models.
However, I do not buy a new tablet every few months. I consider a tablet old after maybe 3 years or longer.
To continue the battery issue: Also, when I shut the tablet down when docked both battery levels have changed when I start it again. To avoid these battery annoyances I often shut it down.
Sent from my Transformer TF101 using xda app-developers app

Well the battery stats part is debatable really, but you need root as far as I know, so you can ignore that part.
About the battery draining while sleeping, I've heard other people having that issue. Not sure if it was ever solved... I haven't had that issue.
Last case scenario would be to make sure it's not a software issue by doing a full factory reset with something like Easyflasher. Corrupted files happens, and there's no easy way to "fix" it. Make sure you backup all important data as easyflasher will completely wipe your device clean, but it's the best way to confirm it's a software-related issue.

Hi,
A cold reboot did it!
For those of you that are as afraid of a factory reset as I am: a cold reboot does not wipe any of your data. You press the 'on/off' button together with 'volume down' button for about 10 seconds. You will see some small print and some unfamiliar pics on your screen. Ignore everything, because a cold reboot is the default thing that will happen.
When your Transformer has booted after this, several things have changed for the better, including your battery indication.
If this instruction is not clear enough, google for 'cold reboot Transformer'.
For me it worked and I found it to be fool-proof.
Sent from my Transformer TF101 using xda app-developers app

[Q] P3113 Won't Turn On Or Charge

*The tablet is completely stock, other than a couple apps, like a dictionary and google translate*
I got a Galaxy Tab 2 7 inch a little while ago for school use, and didn't use it much after Spring finals. But when I went to use it today, it would not turn back on. Thinking that the battery had been drained from being left on for an extended period, I plugged it in. What I found was that it would stay black for a couple seconds then show the battery with the stuck loading circle. It then shows the quarter and half charging increments in orange and shuts back off for a couple seconds. I have attached a gif in case my explanation of the animation is not sufficient.
Edit: My problem was purely hardware. The battery had failed somehow, and I fixed the problem with an OEM replacement battery. I'm glad that it was that easy to fix, and I hope that this can help someone else with the same problem.

FlinderMouse said:
*The tablet is completely stock, other than a couple apps, like a dictionary and google translate*
I got a Galaxy Tab 2 7 inch a little while ago for school use, and didn't use it much after Spring finals. But when I went to use it today, it would not turn back on. Thinking that the battery had been drained from being left on for an extended period, I plugged it in. What I found was that it would stay black for a couple seconds then show the battery with the stuck loading circle. It then shows the quarter and half charging increments in orange and shuts back off for a couple seconds. I have attached a gif in case my explanation of the animation is not sufficient.
Edit: My problem was purely hardware. The battery had failed somehow, and I fixed the problem with an OEM replacement battery. I'm glad that it was that easy to fix, and I hope that this can help someone else with the same problem.
Click to expand...
Click to collapse
Thanks for updating the fix, I have same problem battery not charging never though batter would be the problem last couple of charges battery lasted for 3 to 4 hours and my 8 year old son have been using to play games I though getting 3 hours was good for games. Who knows how these new battery function die all of a sudden!!
I will try changing the battery and update here if battery is the issue for me as well.

FlinderMouse said:
*The tablet is completely stock, other than a couple apps, like a dictionary and google translate*
I got a Galaxy Tab 2 7 inch a little while ago for school use, and didn't use it much after Spring finals. But when I went to use it today, it would not turn back on. Thinking that the battery had been drained from being left on for an extended period, I plugged it in. What I found was that it would stay black for a couple seconds then show the battery with the stuck loading circle. It then shows the quarter and half charging increments in orange and shuts back off for a couple seconds. I have attached a gif in case my explanation of the animation is not sufficient.
Edit: My problem was purely hardware. The battery had failed somehow, and I fixed the problem with an OEM replacement battery. I'm glad that it was that easy to fix, and I hope that this can help someone else with the same problem.
Click to expand...
Click to collapse
you charging using direct charging adapter or USB charging?
based on my experience ...
1. If you tab out of the battery to 0%, can not be charged using usb charge for charging low power and not enough ..
2., And if you run out of battery at 0% and you charge using the adapter charges but still can not keep his charge, and so the possibility is still there charging cable / USB you are damaged .. if so you should try to use another cable / new and charging using adapter ..
try it ... I think maybe it will solve your problem ..

[Q] Battery or charger at fault?

I have a locked & unrooted WW TF700 & genuine dock on JB 4.2.1.
A week ago I started to notice an issue where the tab would constantly drain whilst it should have been asleep. Overnight it would loose ~30% instead of ~2%. I tried a few settings, but couldn't seem to solve it. I decided to do a factory reset because I haven't done one since I last upgraded to jelly bean. That appears to have cured that problem, but has created two more.
The first problem is that I can't seem to charge the tab over 81% when being charged directly. If I then plug it into a fully charged dock it will charge to 90% but no more, even with the charging cable in the dock.
The second problem is that the tab now decides to shut off at about 30% battery left. It won't shutdown as normal, just go blank and won't boot up again without being charged a little first. I have read threads about artificially overcharging the tab, but a symptom of that is the battery level will remain at 100% for hours before starting to drain normally. My tab won't charge to 100% and will start to drain immediately after removing the charging cable. Regardless I have tried to drain and recharge overnight with the tab both off and on but the tab won't charge past 76% overnight in either case. Restarting multiple times doesn't help at all.
For the first issue I started to suspect the charger may be at fault. This is because if I charge the tab directly, it will never get past 81%. However, if I then plug it into the freshly charged dock it will charge upto 90%. I understand that the dock will never charge the tab past 90%, unless it is plugged into the charger. Does it assume in my case that it isn't plugged in to a charger even when it is? I should mention I am using the original asus charger. Frustratingly I can't just use my phone charger to see if it solves the problem due to the 15v of the asus charger. I have noticed a slight hum/buzz coming from the charger but I can't be sure that it didn't do that before. I have had issues with the internal connections not be pushed together quite right before and getting no charge out of it, but 'clicking it together' a bit more firmly did the trick there.
Even with an overnight charge, plugged into the dock to get it to 90% I now get terrible battery life. Roughly 30mins per 10% juice. Previously I was getting around an hour per 10%.
Does anyone have an suggestions for me on how to eliminate the charger as a problem, or say doing another factory reset on a 'full charge'? The only other thing I can think of is to let it drain, give it enough charger to turn back on, then turn it off and leave it unplugged overnight (I saw it mentioned in another thread). I really appreciate any help you can give before I have to try the dreaded warranty route!

Try this with it undocked. Let the battery discharge to zero, and leave it 24 hours.
Then recharge it fully. This seems to cure the battery calibration memory issues.most us know how you get on.

Luckily I have located an Asus charger to borrow and hopefully find out if it is just my charger or not.
I also tried out CPU-Z and the battery is reporting as only having 7mV. I'm sure that can't be correct as my HOX+ is around 3500mV, and 7mV just couldn't power anything. I don't know if this is just CPU-Z issue with reporting correctly, or a clue that there is something not right with my battery? Has anyone else tried CPU-Z or know what the mV should be roughly, fully charged say?

Unfortunately a different charger didn't solve my issue :'(
I've posted a screenshot to show what is happening. I'll try draining the battery flat and leaving 24 hours to see what happens then. Luckily I still have two months left on warranty.
Pretty annoying because everything else the tablet does is fantastic. I replaced my laptop with it and use it daily for everything.
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD

Unfortunately things have become worse. I tried using the tab until it died (at around 50% battery this time...) and left for 24 hours as suggested. Unfortunately now I can't get the tab to turn on or take a charge at all. I have tried holding power button down, with vol up/down, for over a minute etc. Tried the reset button all numerous times with no luck. All I get is the LED blink twice when pressing the power button and this only happens when the charger is connected, otherwise nothing.
I have the phone number for Asus support and will be giving them a call tomorrow. I'm so glad I never unlocked my device!

Gudders said:
Unfortunately things have become worse. I tried using the tab until it died (at around 50% battery this time...) and left for 24 hours as suggested. Unfortunately now I can't get the tab to turn on or take a charge at all. I have tried holding power button down, with vol up/down, for over a minute etc. Tried the reset button all numerous times with no luck. All I get is the LED blink twice when pressing the power button and this only happens when the charger is connected, otherwise nothing.
I have the phone number for Asus support and will be giving them a call tomorrow. I'm so glad I never unlocked my device!
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Click to collapse
Leave it for 24 hours not on charge first then try again. We've seen this happen so many times - the fix is to let it discharge completely.

sbdags said:
Leave it for 24 hours not on charge first then try again. We've seen this happen so many times - the fix is to let it discharge completely.
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Click to collapse
Thanks Sbdags, I appreciate your response. I've read numerous threads tonight with similar issues. I did try leaving the tab for 24 hours completely dead overnight last night. I'll try it again (I don't know if the battery is dead or not currently) but I'll leave it unplugged as there is nothing else for me to do with it anyway!

OK, I thought I would complete this thread.
After leaving my tablet for a few more days not on charge I could seem to get no life out of it whatsoever so went down the RMA route and the result of that is in the following thread;
http://forum.xda-developers.com/showthread.php?p=45065793#post45065793
Gudders.:crying:

Battery/Phone Shutting Down

Recently had to replace battery.
Phone was shutting almost immediately after it was disconnected from charger. Charging status when not switched on showed the battery kinda going in reverse. Phone was really odd as it would suggest the battery had 100% charge and then within minutes of disconnecting it was shutting down.
I tried a factory reset/refresh with no change. So I ordered a Genuine replacement battery off flea bay and installed that last Thursday.
Initially phone seemed ok, then wen a bit weird and shut down even though charge was like at 70% or so. Wouldn't restart until plugged in and then in shutdown mode the battery/charging indicator would show 0% and then very quickly showed 70%. Good bit though was it was going up and not down like before.
Fully charged phone overnight. It then seemed really good and lasted until Tuesday with 66% charge still showing. I had not installed FB or Twitter which made a huge difference. Then yesterday it just shutdown again. When plugged in showed 0%, within minutes back to 70% and then charged to 100% in the space of an hour or so.
So I am looking for any advice. Is this just calibration issues that the phone needs to get past. Is it possible the phone has corruption int he ROM.
I appreciate it might be a hardware fault but seems weird that the replacement battery is clearly showing a big improvement suggesting battery was EOL after 2 years use.
TIA
G

GougeM said:
Recently had to replace battery.
Phone was shutting almost immediately after it was disconnected from charger. Charging status when not switched on showed the battery kinda going in reverse. Phone was really odd as it would suggest the battery had 100% charge and then within minutes of disconnecting it was shutting down.
I tried a factory reset/refresh with no change. So I ordered a Genuine replacement battery off flea bay and installed that last Thursday.
Initially phone seemed ok, then wen a bit weird and shut down even though charge was like at 70% or so. Wouldn't restart until plugged in and then in shutdown mode the battery/charging indicator would show 0% and then very quickly showed 70%. Good bit though was it was going up and not down like before.
Fully charged phone overnight. It then seemed really good and lasted until Tuesday with 66% charge still showing. I had not installed FB or Twitter which made a huge difference. Then yesterday it just shutdown again. When plugged in showed 0%, within minutes back to 70% and then charged to 100% in the space of an hour or so.
So I am looking for any advice. Is this just calibration issues that the phone needs to get past. Is it possible the phone has corruption int he ROM.
I appreciate it might be a hardware fault but seems weird that the replacement battery is clearly showing a big improvement suggesting battery was EOL after 2 years use.
TIA
G
Click to expand...
Click to collapse
Same problem here i will try to install the oficial rom of xt890 if works i back here if not i don't know what to do

Sooo............issue is still present. Odd thing which I am unable to confirm, due to rnadomness of shutdowns, it that I think it is slowly learning the state of the battery as it originally was shutting down at 70% after 2-3 days on standby. then 66% hen 56%. I did a clear cache partition and a fresh install but still the issue was present.
Clearly the new battery is lasting longer than the old one, just the phone does not seem to know to reduce the charge indicator all the way to 0%.
Anyone any idea why this might be happening.
TIA
G

Just to add i'm having the same problem.
Symptoms started last week running the stock kitkat rom so i ordered and a fitted a new battery. Initially everything looked good phone said 100% left it over night and noticed it had shut off when i came back to it. Plugged it in to the charger and it said 0% so i charged back to 100%, booted up android and almost immediately it begins discharging rapidly, i would say within 15 minutes its back down to 0%.. I've done this a few times now even left it on charge overnight for 8 hours but its still discharging rapidly everytime. The craziest thing is even if it says 0% in android i can still boot in to recovery and flash away so clearly there is charge in the battery its just android thats out of sync.
What i've tried so far:
Different wall chargers/USB leads/Outlets
Wiped everything in TWRP and flashed CM11
Factory Reset several times
Various battery calibration apps
My next step is going to be trying RSD to flash the stock ROM but beyond that i dont know what to do.

I'm experiencing EXACTLY THE SAME ISSUE with my Razr i, replaced the battery and it's still discharging very fast

Eventually managed to resolve my new battery issue simply by fully charging and discharging several times. It started to hold charge after the 7th charge and after several more discharges it's now up to full capacity.