BQ25886的充电引脚连接2串1并的18650电池包,充电线上设置了一个开关,使用输出为5V/3A的手机充电器给电路供电;
场景1:开关(充电线上)断开的状态,连接充电器;然后闭合开关,充电电流正常(1.2A);
场景2:开关闭合的状态,连接充电器,此时充电电流为0.1A,充电异常。
请问能否判断以上异常的原因,以及BQ25886和充电引脚和电池之间需要增加隔离之类的器件吗?
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