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원문 게시자: Jesse ,

제목:

Overcharge protection. Function of battery or phone?

텍스트:

I need to charge my battery externally. My only concern is overcharging and ruining the battery. I know there is a circuit somewhere that prevents overcharging. Is that circuit built into the battery, or is it part of the phones hardware?

기기:

iPhone 4S

현황:

open