I would be guessing you want to discuss how batteries work. When new some have to be used a little to show more capacity and later they begin to lose capacity as they wear out. This area really can upset folk.
Bob
I am dead impressed with my S3 I535 ever since it has installed a new battery. My first day of the new battery from Mpj was unimpressive, no better than the stock which been used years. Fortunately, after several full discharge and recharge cycles, I got 20hrs on a charge and had way heavy use on my phone. No idea why?

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