[Q] Galaxy Tab battery drains full to empty in 20 minutes

perhaps one of your apps? try installing them a few at a time to see which app is causing it

I had a similar problem but not nearly as bad as yours. I had my tab unplugged for a while and checked the batter: 30%. So that was fine so I opened up dolphin and INSTANTLY the screen went really dim and said I had less than 3% battery which I did not believe.

Turning the tab off and back on the battery was now at 27%. This only happened that one time and I havent seen it agian. Must be some weird battery level reading bug.....

I have the same situation and also make a backup and factory reset amd later a restore.
That was 2 months ago and until now it works like a charme.

Sent from my GT-P1000 using XDA App

Power off g tab drain the batt

I have my Galaxy Tab for about 3 days ago. Charge to 100% the battery, and then, I decide power off (totally) the Tab. Hold power button, and in the pop-up window, power off the phone!!

After a 1 hour, I saw the screen message with the android icon "POWER RESET or UPLOAD MODE"....and drain totally the battery!!!

What can I do???

See the attached image.......please help me!!

Only 2 things are likely to cause this, the battery being stuffed, or the battery stats database getting corrupted. You could try the "bump charge" method and see if it resets it. (Charge fully while on from AC, unplug, turn it off, charge for an hour or so from AC, unplug, turn it on, turn it off again once booted, charge for another hour or so, unplug, turn it on).

The battery stats can be wiped from the CWM recovery if you wanted to flash that, I'm not sure where the file lives to do it manually.

Dann said:

I have my Galaxy Tab for about 3 days ago. Charge to 100% the battery, and then, I decide power off (totally) the Tab. Hold power button, and in the pop-up window, power off the phone!!

After a 1 hour, I saw the screen message with the android icon "POWER RESET or UPLOAD MODE"....and drain totally the battery!!!

What can I do???

See the attached image.......please help me!!

Click to expand...

Click to collapse

Hi, just like to share my experience with you guys. I encountered the same problem as mentioned, especially the sudden request to shut down due to battery becoming 3%, although it has 50% left. I tried recharging a few times but the same thing happens, something, it will shut down at 30% battery power level. Then, one afternoon, while I was looking at my pictures (at Gallery), I saw duplication of my photos (3 times) that appeared on my gallery folder. But the key issue is I stored all these pictures (taken by camera or by transfer from PC) in the microSD card (8GB). I tried to do a deletion on the addition pictures (it showed 3, so I tried to delete 2). But to no avail, and the system keep processing even though I tried stopping it. After about 2 minutes, the promot came up, requesting me to do a shut down saying the battery level was low, although I have about 50% battery power left. So, I shut down the tab immediately and removed the microSD card. After that, I switched on the tab and it says 50% power left. But I have to make sure it is possible to utilize the tab until it drains out the battery. Finally, I managed to cross the 20% power level and the tab can still be used .

I was curious about my microSD card, thinking that it may be faulty. I used a pc to open up the content and I discovered the SD card has no problem at all, it didn't have duplication when viewed from the pc. For your information, I have installed "angry bird" onto the 8GB microSD card, I am not sure if it is causing any problem to the tab or draining power from it, because the download (from Goggle market) mentioned something about "preventing phone from sleeping - System tools". I am not sure how this is link to the duplication of the pictures in the gallery folder as well, but I am glad I have found the fault to the draining of the power by the tab.

I would suggest, before anyone proceed with the factory reset, do a check on your storage card or the apps that you have installed in your tab, try to solve the simple way and it can save us a lot of troubles .

I hope it helps............

Henry Lam

As knightnz mentions ~ It's the Battery Stats Database being corrupt.


To repair, simply:-
Connect the Tab to it's Charging Cable and ensure the Tab is switched Off.
Next, hold the Power On Button whilst at the same time touch and hold the screen.
You will notice the battery indicator will pop up.
The Tablet will now reboot.
Everything should now return back to normal.

This procedure can also be used for a Tab that refuses to switch on.

Should I do this when the tab is off? or when it is on?

I actually tried both, but I dont see "the battery indicator pop up" as mentioned.

Beards said:

As knightnz mentions ~ It's the Battery Stats Database being corrupt.


To repair, simply:-
Hold the Power On Button whilst at the same time touch and hold the screen.
Next you will notice the battery indicator will pop up.
The Tablet will now reboot.
Everything should now return back to normal.

This procedure can also be used for a Tab that refuses to switch on.

Click to expand...

Click to collapse

shinji21 said:

Should I do this when the tab is off? or when it is on?

I actually tried both, but I dont see "the battery indicator pop up" as mentioned.

Click to expand...

Click to collapse

Actually, I missed out an important ingredient ~ The Power Cable.
You need to have the Tab connected to your charging cable as if you were charging the Tab and the Tab switched Off.
Next, hold the Power On Button whilst at the same time touch and hold the screen.
Next you will notice the battery indicator will pop up.
The Tablet will now reboot.
Everything should now return back to normal.

I'll amend my previous instructions to include the Power Cable.

Beards said:

Connect the Tab to it's Charging Cable and ensure the Tab is switched Off.
Next, hold the Power On Button whilst at the same time touch and hold the screen.
You will notice the battery indicator will pop up.
The Tablet will now reboot.
Everything should now return back to normal.

Click to expand...

Click to collapse

This is not working for me. The battery indicator pops up, but nothing else happens. The battery indicator even does not do any animations.

Beards said:

Actually, I missed out an important ingredient ~ The Power Cable.
You need to have the Tab connected to your charging cable as if you were charging the Tab and the Tab switched Off.
Next, hold the Power On Button whilst at the same time touch and hold the screen.
Next you will notice the battery indicator will pop up.
The Tablet will now reboot.
Everything should now return back to normal.

I'll amend my previous instructions to include the Power Cable.

Click to expand...

Click to collapse

Hi Beards,

Sorry to ask again, is there any way to verify that it has been solved without really draining the power to 0%? Is there any clear indication?

Thanks.

Henry

loonyt said:

This is not working for me. The battery indicator pops up, but nothing else happens. The battery indicator even does not do any animations.

Click to expand...

Click to collapse

henrylam said:

Hi Beards,

Sorry to ask again, is there any way to verify that it has been solved without really draining the power to 0%? Is there any clear indication?

Thanks.

Henry

Click to expand...

Click to collapse

The trick is in holding the screen whilst powering up.... It bypasses the normal start-up routines, resetting any errors that would sometimes require a Factory Reset to correct.
This info was passed on to me by a Samsung representative.

Easy fix, get a replacement, thts bad hardware, shouldn't have a problem exchanging, assuming it was purchased thru an auth retailer. No sense in messing with software and having a headache over it.

Seriously, the press screen thing doesn't work at all. Eventually, I brought it to the service center to do a firmware upgrade and it is back to normal...............

New upgrade:
Baseband version: P1000DXJM2
Kernel version: 2.6.32.9 root@SE-5604#1
Build number: FROYO.DXJM4

The funny thing is my wife has a unit that was using the same version as mine (old version, we bought them at the same authorised dealer), but she did not encounter such problem. I am just puzzled.

It did not work for me either. Is the charging cable supposed to be plugged in to the power socket or just the cable? (I tried both and neither worked)

I also did a firmware upgrade with Roto JMIv2. And I still see the problem.......Anyone having any suggestions please?

If your GALAXY Tab is running from fully charged to flat in under 20 minutes I wouldn't recommend anything other then... Sending it back to where you go it from?!

It doesnt go flat in 20mins. As a matter of fact, it lasts a couple days with my work load. Its just that when i put it in standby mode let say overnight at 80%, when i turn it on in the morning the battery will be at 50-60%. But when i restart it will go back up to 78-79%.

So im not losing battery capacity here i believe, but its annoying to have inaccurate reading, especially when i am on a trip or sth.

Sent from my GT-P1000 using XDA App

I can understand your predicament, I have those "moments" before. Mine just dies off and need reset to get the battery back. The unknown is always not welcomed to all since we paid so much for them.