Strange problem with my Galaxy S2 battery - Android Q&A, Help & Troubleshooting

Hello guys , i have been using my Galaxy S2 for more than a year now. Recently i have noticed that my battery life shown by phone is not correct like that last 1% remaining last for like 10% of the battery life (Strange right) previously i used to start charging my phone on 5% only but a few days back i noticed this . Is there any way to correct this , if yes then how.
Thanks a lot

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Strange battery issue

I have faced a situation, I have never seen before. I'm running cm9 for some time now, on a p7500 16gb. Last night I turned the device off and the battery was at about 30%. Half an hour ago I tried to turn it on but the battery was drained. I connected to the charger and it showed an exclamation mark next to the battery and after 2-3 minutes started charging. It's running ok now but I want to ask whether you think my battery may be damaged somehow. I have callibrated my battery in the past and had uptime of about 9-10 hours of use. Really strange...
Sent from my amazing 10.1 galaxy tab
You may just need a new USB adapter/cable. Just in case , test by tweaking your UV/OV and OC settings.

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mayank06199 said:
I have a samsung galaxy young s6312, stock android 4.1.2 jellybean, rooted. Since a few days I have been facing an issue with my battery. When i charge my phone, then remove it from charging, suppose at 78%, then the phone stays at 78% for about 1 hr or so, even if I use it extensively, and then the battery level begins to descend sharply, within the next half hour, it will be at 50%. this issue came up recently, is it a problem with my battery or is it a software issue??
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try factory reset
if not works then it is your battery problem

Battery not working or charging on Samsung Galaxy S3

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