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BQ28Z610: 充电时感觉进入了预充,但找不到预充怎么设置的 ,放电一下就没了

Part Number: BQ28Z610


如下 充电电流有200MA, 测试了 CHG脚 有8.5V电压 经过R5 5.1K后下降了5mv ,这个是不是在预充啊,但预充门限是2.5V啊。