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Old September 9th, 2012, 12:41 PM   #1 (permalink)
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Question Battery level drop after reboot.

Hi, after every time I reboot my phone, the battery level will drop to a certain percentage. I tried charging it to 100% and when I reboot it, it dropped to around 60% -80% and never go back up. I tried charging it again and it shoot up to 100% in less than 2mins.



I tried battery calibration the no-root-way, but still having the same problem. (Calibrate Android Phone/Tablet Battery and Achieve Longer Battery Life)

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Old September 12th, 2012, 06:47 PM   #2 (permalink)
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You could try using up the battery until the phone shuts down. Then charge it up again.

Sometimes the phone doesn't know the real battery percentage and emptying it totally gives it the chance to find out.

I also see you are running juice defender and avast, those 2 can drain the battery faster. Android can manage the processes itself quite good, any task killer apps can disturb this. And avast is a great app, but if you only download apps from google play you should be fine. When you think there is a chance you have a suspicious app then you can still download avast, scan your phone and uninstall it again.
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Old October 18th, 2012, 07:55 AM   #3 (permalink)
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Hi nieltab, I tried to drain the battery until the phone shut off by itself and charge it up to 100%, but still having the same problem. I've stopped using juice defender, but still using avast because I downloads stuff from internet quite often. So I think it's better to leave it on.
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Old October 22nd, 2012, 07:05 PM   #4 (permalink)
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Angry battery level drops when restart phone Galaxy S2

Hi,

I have a Galaxy S2 and am suffering from the exact same problem as Alex. can anyone help as it is getting very annoying, i have tried to drain the battery until the phone turns off itself then charged it to 100% then took the battery out and in and fully charged it again, i also did a hard reset but still the same issue
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Old October 22nd, 2012, 07:06 PM   #5 (permalink)
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on the above image when the level is dropping to red is when i restarted the devise, (force restart due t one application)
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Old November 17th, 2012, 11:58 PM   #6 (permalink)
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Question battery Percentage Increase after re-start

Hi I own a Samsung Galaxy S Advance (duh!)
When I charge the phone and use it normally, sometimes the battery falls from 52 % to 38%...on stand by state.
After I turn it off and power it back on, the battery Percentage is back to 52%.
My Mother owns a Samsung Galaxy Y, and this occurs even in that phone.
My phone is 2.3.6 an so in the Galaxy Y.
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Samsung Galaxy S Advance
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The Samsung Galaxy S Advance is an Android 2.3 smartphone positioned for the mid-range. The specs would have you guessing otherwise, however, as it has a four inch Super AMOLED display, a 1GHz dual-core processor, 768MB of RAM, 8GB or 16GB of inter... Read More

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