The battery on Kobo Glo HD also drains quickly sometimes.
I had replaced my first Glo HD. However, my second one had the same problem. It went derectly from around 80% to over 60 % after a night, then, from over 40% to 2% on the next day. (I always turn off wifi connection). Maybe it because of the firmware.
Does anyone know how to solve this problem?
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