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[Q] Very strange battery behavior.

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By parseval43, Junior Member on 7th July 2014, 10:57 PM
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Hi all... first post, first problem with android... and hopefully a long time here in xda!

So I have the T320 (8.4 pro) and I have a strange problem with my battery. Is not only that it lasts no more than 4 hours (screen), the problem come by low and high battery %.

FOTO

By low, the table shuts down and after starting it again, it shows between 5 and 10% battery!!
Something similar happens by charging... it shows 90% and no change... and after a reboot it shows 100%.

Is my battery dying? Should I wipe and restart from zero? Cyanogen?

The speed how fast battery drains is also extreme compared to stand-by times... but I assume this is more or less a problem of this tablet.

Many thanks in advance!
Last edited by parseval43; 7th July 2014 at 11:03 PM.
 
 
12th July 2014, 05:08 AM |#2  
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Quote:
Originally Posted by parseval43

Hi all... first post, first problem with android... and hopefully a long time here in xda!

So I have the T320 (8.4 pro) and I have a strange problem with my battery. Is not only that it lasts no more than 4 hours (screen), the problem come by low and high battery %.

FOTO

By low, the table shuts down and after starting it again, it shows between 5 and 10% battery!!
Something similar happens by charging... it shows 90% and no change... and after a reboot it shows 100%.

Is my battery dying? Should I wipe and restart from zero? Cyanogen?

The speed how fast battery drains is also extreme compared to stand-by times... but I assume this is more or less a problem of this tablet.

Many thanks in advance!

Having similar issues. Found mine dead out of nowhere one day. Never had custom ROM on it. Did factory reset now it seems like it doesn't want to charge .... Charges VERY slowly if at all.

Sent from my SM-G900T using XDA Free mobile app
16th July 2014, 01:01 PM |#3  
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i have the same issue, dropped from 50 to 15 all of a sudden , will try calibration , anyone else noticed this ?i picked up mine used so unsure whats the issue
16th July 2014, 02:38 PM |#4  
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i found better battery life after i did a factory reset. i bought it new and set it up and since then had 1 Sammy update but last week i reset it and it clearly made a difference on my 10.1. yesterday i had 2 hours screen time and on battery for 2 day and some hours and had 60% left.
17th July 2014, 09:07 AM |#5  
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Add mine to the list....seems to be doing the same thing here. Haven't been able to sort it out yet.
17th July 2014, 11:20 AM |#6  
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Took the back off mine tonight and reseated the battery connector. Then charged like below. First to time in a while it charged up like this.


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17th July 2014, 12:10 PM |#7  
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can you post a pic of videos of how to pry it open ? hopefully simple with a prying tool
17th July 2014, 03:13 PM |#8  
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Quote:
Originally Posted by cletusarrarr

can you post a pic of videos of how to pry it open ? hopefully simple with a prying tool

I just very carefully went around it with one of those guitar like plastic openers i have laying around from the many tablet/phone repair kits i have used. I probably rebooted it 5 times before i finally popped it apart... thing just did not want to charge. This was the first time i saw it ramp up 1% at a time in a while. The other thing i noticed it was doing was jumping from ~70% to 100% instantly.... The graph showed it too. I didn't believe that was really happening.
17th July 2014, 04:11 PM |#9  
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some pics would help , is it between the screen and the metallic part or the back and the metallic part ?
17th July 2014, 11:15 PM |#10  
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Quote:
Originally Posted by cletusarrarr

some pics would help , is it between the screen and the metallic part or the back and the metallic part ?

No. The faux leather cover comes off.

This... http://forum.xda-developers.com/show....php?t=2710711

pro 8.4 Teardown
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