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知道么？通过锂电源保护板引脚，就能直接判断电源功能是否正常
收到两块电动锂电源，一个是铁锚款另一个是东城款，两块电源都是无法充放电，更换完电池组维修完毕后，用简单方法不用插电动工具就能判断锂电源功能是否恢复正常
电动工具电源维修大全161/417
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