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BQ40Z80: BQSTUDIO

Part Number: BQ40Z80
Other Parts Discussed in Thread: EV2400

用BQ40Z80芯片自己做的板子,电芯是磷酸铁锂的,但组装成电池包成品后用EV2400连接上位机后满充容量和剩余容量显示为0是为什么?