bq25070的充电效率一般有多少。
我用bq25070给单节LiFePO4 3.2V 3000mAh电池充电,充电效率只有60%。
Vin: 5V Iin:633mA, 充电电流654mA, 效率很低, bq25070很烫。是不是不正常?
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