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Help with battery problem!
Hello, I got my Samsung Galaxy Tab 2 7.0 at the end of last year and since that moment it has become my everyday device. Since some days ago I started seeing that my tablet started charging very fast as it reached 100% of battery in a very short period of time, but I only unplugged the charger and plugged in again and it started charging again from 99% until it reached the real 100% of charge, which took more time than the normal 99-100% because it was actually charging the device battery which was not actually in 99%.
This did not bother me that much since it was easily fixed, but since yesterday the problem became very problematic. Now my tablet may say that it is in 100% but it will discharge very fast, every couple of minutes may take 5% or more from the battery percent and if I turn off the device it may not turn on again until I plug-in it with the charge, after this it will not show me the normal battery symbol being charged but the battery symbol with a "!" in a triangle indicating that the battery is critically low, even if I turned off the device with more than 40% of battery. After a short period of time it will start showing me the normal symbol of the battery charging and I will be able to turn the device again to discover it now says it only has 3,4 or 5% of battery!!. Then it will start charging somehow fast until it reached a medium or high level of % and then it will start to discharge (even with the charger connected). For example: now it says I have 96% of battery and it is charging, a minute later I will only have 93%. Some days before the problem became this critical I observed that while the battery life was normal, it stood at 10% for a lot of time until it finally turned off, which came as a surprise for me.
I feared that the problem was my battery, until I started looking for solutions and discovered that it may be that the device has a problem of sync with the battery. I tried some apps to calibrate the battery, but they need the device to be rooted, so it will not work for me. I dont know what to do now and I really need the tablet to work properly as it is my personal device and computer which I use for keeping in touch with family, news, fun and many other things.
I lack of too much knowledge about this kind of devices, but I would appreciate a lot if someone can tell me what the problem is after reading my description and the possible solutions. Thank you very much!