*not my solution but worked for me*, found it on a different place. 1 - go to Play Store. 2 - select My Apps and Games from top left menu. 3 - update all. 4 - double check to ensure every single app is updated. 5 - charge phone to full. 6 - restart phone. Prior to this, my phone would drain itself completey overnight, even just sitting idly for an afternoon. for some reason, updating the apps worked perfectly, and battery life is back to allmost new status.
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