Go Back   Android Forums > Android Phones > Samsung Galaxy S2 (International)

Get excited for the Samsung Galaxy S5! Find everything you need and discuss it in our Galaxy S5 Forum!

test: Reply
 
LinkBack Thread Tools
Old April 12th, 2012, 01:00 AM   #1 (permalink)
New Member
Thread Author (OP)
 
Join Date: Apr 2012
Posts: 3
 
Device(s):
Carrier: Not Provided

Thanks: 0
Thanked 0 Times in 0 Posts
Default Random reboots, then significant battery drop (within seconds)

In the past two months or so (I've had the phone for seven) the phone just randomly turns off (maybe 1-2 times per week) and when i reboot it, the battery has dropped sharply (from anywhere between 10 and 70%) within the space of minutes being off. It's legitimate battery loss as well - It takes the same time to recharge the battery back to where it was. Other than when that happens the battery performs well and I get quite good battery life. This happened before and after I got ICS so that can be ruled out, and otherwise I think it makes more sense for the problem to be hardware related.

Usually the battery doesn't drop that significantly but today it dropped an insane amount, from about 85% to 20%. Any ideas what could be the problem/possible fix? I would post a screenshot but there are limitations on new users.

kiwi703 is offline  
Reply With Quote
sponsored links
Old April 12th, 2012, 03:41 AM   #2 (permalink)
Junior Member
 
Join Date: Sep 2011
Posts: 51
 
Device(s):
Carrier: Not Provided

Thanks: 1
Thanked 5 Times in 4 Posts
Default

I have had a similar problem, except the phone didnt turn its self off. It happened yesterday, my internet wasnt loading properly, so I tried going into flight mode and back out, that did nothing. So I opted to switch off and back on again. After switching back on the battery had dropped from about 50% down to 13% with no good reason. Im running android 2.3.3
tim1989 is offline  
Reply With Quote
Old April 12th, 2012, 04:19 AM   #3 (permalink)
Senior Member
 
Hawker's Avatar
 
Join Date: Aug 2011
Location: UK
Posts: 3,748
 
Device(s): GT-I9505 Firmware: Danvdh GE 4.4.2 Kernel: KT BL: MGA GSM: XXUFNC9 LTE: XXUBMH1
Carrier: EE UK (4G)

Thanks: 536
Thanked 1,711 Times in 1,048 Posts
Default

This is not quite a legitimate battery drop, as if you leave the phone on standby for a period after a drop you will notice the battery level increases over time. It will eventually level out (but not usually at a point of when the drop happened) and start dropping again.

This is the one drawback of the GS2's "fuel chip". It has a great advantage that it never requires calibration, but you will occasionally, but not every time, notice a sharp drop in battery level directly after a power off.
__________________
Device: Samsung GT-I9505 ROM: Danvdh GE 4.4.2 Kernel: KT GSM: XXUFNC9 LTE: XXUBMH1 B/L: MGA

My Scripts
My Web Site
Hawker is online now  
Reply With Quote
Old April 12th, 2012, 04:33 AM   #4 (permalink)
New Member
Thread Author (OP)
 
Join Date: Apr 2012
Posts: 3
 
Device(s):
Carrier: Not Provided

Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by Hawker View Post
This is not quite a legitimate battery drop, as if you leave the phone on standby for a period after a drop you will notice the battery level increases over time. It will eventually level out (but not usually at a point of when the drop happened) and start dropping again.
Well that doesn't sound so bad then. But can you guess the cause of the phone randomly shutting off? I have a feeling that it could be triggered by motion, but i could easily be wrong. And also i don't understand how battery can just disappear like that. Granted it does level out a bit like you said, but battery life is still lost at the end of the day, and turning off the phone doesn't seem to create excess heat, so i can't see an explanation. Anyway cheers for the reply.
kiwi703 is offline  
Reply With Quote
Old April 12th, 2012, 04:41 AM   #5 (permalink)
Senior Member
 
Hawker's Avatar
 
Join Date: Aug 2011
Location: UK
Posts: 3,748
 
Device(s): GT-I9505 Firmware: Danvdh GE 4.4.2 Kernel: KT BL: MGA GSM: XXUFNC9 LTE: XXUBMH1
Carrier: EE UK (4G)

Thanks: 536
Thanked 1,711 Times in 1,048 Posts
Default

Randomly shutting off is a different matter.
There is quite a common fault with regards to the battery not being tight enough in the compartment, causing the terminals to lose contact, and therefore power off.
A "fix" for this is to wedge a piece of paper in there so that it is a tighter fit.
Hawker is online now  
Reply With Quote
Old April 17th, 2012, 03:30 AM   #6 (permalink)
New Member
Thread Author (OP)
 
Join Date: Apr 2012
Posts: 3
 
Device(s):
Carrier: Not Provided

Thanks: 0
Thanked 0 Times in 0 Posts
Default

Just thought I'd post the images now that i can. And usually after this happens i just immediately plug it into the charger but this time i didn't just to see if the battery percentage would increase after the drop but as it turns out it just hovered around 2%.
http://db.tt/kOSabGzG
http://db.tt/umESD7Ny
kiwi703 is offline  
Last edited by kiwi703; April 17th, 2012 at 03:32 AM.
Reply With Quote
Old April 17th, 2012, 04:18 AM   #7 (permalink)
Member
 
Forbidden 403's Avatar
 
Join Date: Apr 2012
Location: India
Gender: Male
Posts: 291
 
Device(s): Samsung Galaxy S2, Nexus 7 (2013)
Carrier: Not Provided

Thanks: 19
Thanked 63 Times in 58 Posts
sandy1kumar
Default

That's definitely a significant battery loss.
Did you try Hawker's "fix" regarding the battery.

Randomly rebooting phone is not a good thing. Sorry to be negative but I suspect that you perhaps have a short circuit on your board.
__________________
Press The Thanks Button if you Feel I helped.
For best results provide all the info you can (especially ROM, PDA, CSC, Kernel, carrier)

ROM: GT-I9100 [CM 10.2 Nightly] || Nexus 7 [Stock Rooted]
Forbidden 403 is offline  
Reply With Quote
Old April 17th, 2012, 09:50 PM   #8 (permalink)
Member
 
Join Date: Jun 2011
Location: Denmark
Posts: 139
 
Device(s): Samsung Galaxy S2
Carrier: Not Provided

Thanks: 2
Thanked 12 Times in 11 Posts
Default

My random reboots stopped completely after I removed the 16 GB SD card I had in it. Whether its presence caused a compromised connection for the battery or the card was faulty (I ran checks on it but no errors were found) I don't know. I haven't needed the extra space so I haven't gotten around to buying and trying a different card instead.
Miths000 is offline  
Reply With Quote
Old April 17th, 2012, 10:24 PM   #9 (permalink)
Kie
Senior Member
 
Kie's Avatar
 
Join Date: Oct 2011
Location: Perth, Australia
Posts: 819
 
Device(s): SGS4, HP Touchpad
Carrier: Virgin Australia

Thanks: 171
Thanked 223 Times in 161 Posts
Send a message via Skype™ to Kie
Default

I sometimes get severe battery drops after rebooting, but it's getting less frequent. As Hawker said, it starts rising after that and eventually catches up with the number it's meant to be.

Random reboots due to the sd card point to an incompatible sd card. What brand is it? If it's not sandisk, try a sandisk one. If it's sandisk, there's something more serious wrong.
__________________
SGS4: Stock ROM, rooted w/ CF-Root
HP Touchpad: CM9 tenderloin 28-Apr-13
Kie is offline  
Reply With Quote
Old April 19th, 2012, 10:39 AM   #10 (permalink)
Member
 
Join Date: Jun 2011
Location: Denmark
Posts: 139
 
Device(s): Samsung Galaxy S2
Carrier: Not Provided

Thanks: 2
Thanked 12 Times in 11 Posts
Default

It's a Sandisk .
Miths000 is offline  
Reply With Quote
sponsored links
Old December 23rd, 2012, 11:15 AM   #11 (permalink)
New Member
 
Join Date: Dec 2012
Posts: 1
 
Device(s):
Carrier: Not Provided

Thanks: 0
Thanked 0 Times in 0 Posts
Default I have the same problem

I have the same problem with my galaxy s2 in the past few weeks..

any ideas?
nyd100 is offline  
Reply With Quote
Reply

Samsung Galaxy S2
Current Rating:
Rate this Phone:

The Galaxy S2 (sometimes known as the Galaxy S II) is the follow up to Samsung's widely successful Galaxy S lineup. This time, the Galaxy S2 raises all the stakes and Samsung has found a way to double almost every spec in a true, one of a kind ... Read More



Go Back   Android Forums > Android Phones > Samsung Galaxy S2 (International)
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 06:16 AM.
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.