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[Q] Galaxy Tab 2 10.1 Battery Life Extremely Low. How to Find Cause?

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Default [Q] Galaxy Tab 2 10.1 Battery Life Extremely Low. How to Find Cause?

First post, so hi everyone!

I bought this Galaxy Tab 2 10.1 about a year ago, it runs the original firmware with the recent Samsung update to 4.2.

Lately the battery life has become very short. This was not a gradual change, but something that seemingly happened over night. I charge the device with a travel adapter that claims to output up to 1 A. The battery monitor shows that charging works as expected and the device charges to 100 % .

In use the battery shows 100 % for a while, but after about 20 to 30 mins jumps to 4 % , giving me the low batter warning. I am travelling and the only change I can think of is, that mains power here in Canada is 110 V instead of the 220 V back home in Europe, not that I expect that to be a problem.

I don't notice the device getting warmer than usual, so I don't believe, that the battery really charges to 100 %. Is there anything on the software side I can do to investigate this further?

Thanks for any advice!
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