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如题，不接电池，接负载，Vbat电压会被拉低到1,5V左右。不过接了电池，电压输出就比较稳定。所有我不知道这算不算正常现象。
正常。
能不能提供一个空载时Vbat的电压波形图。。。平常一些锂电池充电芯片Vbat输出空载时，都稳定在4.2V，有点不放心
