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大家好！我按照BQ2057评估板电路搭了BQ2057C电路，充电1节3.7V锂聚合物电池。发现电池电压到4.15V以后充电特别慢，6个小时灯还亮着。最后拔掉了USB接口，再插上去灯不亮了。请问下有没有谁遇到过类似问题，该怎样解决？
