Other Parts Discussed in Thread: BQ24296
你好,
电池过放后,电池端电压为0,外接充电器无法充电;看log系统读出来的为4.2V(系统ADC读取Vbattery这个点的电压),系统判断为满电了,但是实际上电池电压是0V,请问一下是什么原因造成这个电池电压为0,但是系统读出来却是4.2V的现象的?
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您好,The battery voltage reading from the ADC is the BAT pin voltage. Check your IBAT (battery current) to see if the battery is being charged properly. Additionally, take a look at this section of the datasheet pictured below for more information on over-discharged batteries:
If your battery is not receiving the correct ISHORT charge current, make sure that there is no external circuitry or built-in battery protection disconnecting the battery terminal from the VBAT pin.