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BQ24172充电问题,急!!

Other Parts Discussed in Thread: BQ24172

单位一款产品采用BQ24172给电池供电,电池为三节电芯串联。

目前输入电压为15V,输出的充电电压为12.56V,但是有个问题是接上电池(电池电压为10V)后,充电电流仅为200+mA,而且大概一分钟后,充电电流就没有了,焊了三块板子,现象都是一样的,调了几天了,没有进展,求教各位大神!