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制作不一般的电动锂电源，不仅带均压功能，而且是20芯超大容量
制作了一个4串磷酸铁锂电池组，需要给它加装铁锂电池专用保护板，如何区分保护板信号点与充放电焊点，怎么接线？
电动工具电源维修大全385/417
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