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BQ3060 芯片怎样才能正常充电放电?

Other Parts Discussed in Thread: BQ3060

我用的是      这个芯片是BQ3060PWR 吗?电路板每次将 PRES引脚 拉低 才能充电和放电。怎样设置能进入正常模式工作?还有个问题,装了4节18650电池,但通过软件只认到3节电池,第4节电压与第3节电压一样11.8V左右。测量了实际VC4引脚对地有15.7V,  VC3引脚有11.8V。这是怎么会事。有知道的请讲下。谢谢!