2000mAh lithium polymer rechargeable battery, 3.7V , size 10x34x50mm 5 different 3 pin connector for choice. JST 1.0 3pin , JST 1.25mm 3pin, JST ZH 1.5mm , JST PH2.0mm , JST XHR-3 2.54mm . use for smart watch, mobile phone, GPS,poqwe bank.
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