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Severe Battery Issue - Dies after 10 mins

dat droid

Lurker
Hi

I have had my HTC One M8 for about 21 months and there is a very big issue with the battery life. When it is unplugged, it dies after 10-15 minutes, even after a whole night of charging. The battery life has deteriorated over the last few months, starting at dying from 10%, to 20% and now it dies at 97%!!

After it dies and I plug the charger in, the phone will display something like 76% of battery. Then it will die again after 10-15 minutes and then display like 46% for example. I have tried re-calibrating the battery using apps and wiping the cache. Sometimes just a split second before it dies, the screen shows a blank "Android System" page and the battery icon in the corner turns red (I assume this means the battery is dead).

Sometimes I've noticed the battery jumps from random percentages, up or down and it's very random. So I don't know what to do now, my phone is literally unusable because of the crappy battery or if there's some virus or script on my phone that is breaking it.

See below for examples of my erratic battery life. Please, tell me what I can do!!

Screenshot_2016-08-20-17-38-55.png
Screenshot_2016-08-20-17-39-20.png
Screenshot_2016-08-20-17-39-27.png
Screenshot_2016-08-20-19-13-21.png
 
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