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充电宝充完电后会不会变重
更新时间: 2020-07-12 00:00:00  

原因:电池充电是化学反应,只是电荷的转移,质量不会发生变化。

移动电源工作原理:移动电源主要由外壳,电路板和电芯组成,外壳起到保护内部元件的作用,电路板的职能则是调整输入和输出的电流,防止设备损坏,而电芯则执行“储存”电能的任务,通过内部的化学物质完成电能的储存和释放。

关键词: 充电

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