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bq24170用来冲3节锂电池,现在充电功能已经好了

Other Parts Discussed in Thread: BQ40Z50-R1, BQ4050

现在想加个锂电池的电量led显示,可是只有一接上外电,bat脚就是12.6v,无法通过检测电压的方式来显示电量,请问有什么其他的方式来做吗 。TI有相应的芯片吗 ?有的话推荐一下