[Q] strange battery % jumps/drops

Hello, I have strange battery % lvljumps/drops during useing, withot reason, always when screen is off, without wakelocks and something like that, what it looks? :

it is motorola moto G 2013 and i have it on All tested Lollipop roms- soak 5.0.1 5.0.2 stock 5.0.2 AOSP 5.1

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