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51问答网 > 3个12安时电池充满电需要几度电？加上充电器的损耗拜托各位了 3Q

3个12安时电池充满电需要几度电？加上充电器的损耗拜托各位了 3Q

2025-03-15 07:28:47

推荐回答（1个）

回答1：

安时，即放电电流（安培A）与放电时间（小时H）的乘积，12安时意思是，以12安的电流能放电1小时。楼主还需提供电压，公式是电压V*安时AH*3600焦（J）＝功率W。要说明的是，以上只是估值，随着放电深度的变化，电池电压都会改变，但是有一定的范围，例如手机常用的锂电池一般在3.0-4.2V，所以取均值3.7V来计算。

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