我用的是bq28400,请问如何正确的读取电池的电量。目前我是读取电压来判断电量的,但我充电是用bq24170的8.4V来充电的,一旦拔掉适配器,电压读取到的值会低很多(例如:充电时bq28400读取电压为7.6V,拔掉适配器后为7.2V),求教!
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