After 10 days of testing I can say that the battery is still working... randomly. There are no bootloops, reboots etc. but first it lasted for 7 days before full discharge, and today it ran empty after 3 days. I read a lot of comics in both cases. No idea why it lasted only for 3 days second time...
Sometimes I read for 2 hours and the battery shows only 1% usage. Sometimes, like today in the morning I read for 15 minutes and 30% drops.
Even for comic reading I find 7 days of battery up-time to be pretty low, but acceptable. 3 days is not. If it was constantly giving me around 7 days it would be alright, but since it's random, with no apparent reason it makes the device very unreliable. WAD didn't detect anything. I'm still looking for suggestions on better apps to detect what could be draining my battery.
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