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12串的锂电源要换电芯，可是保护板上有10几根线，如何保证不接错
千元的一个设备锂电源，测试无法充放电，电池组属于12串，测量电压只有40伏，明显电池组有故障，那更换电池组的话，保护板接线太多如何能正确连接
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