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国产套料做的博世锂电源，价格是原装5分之1，但它却有比较大缺点
进口博世锂电源太贵了，这位朋友选择用国产套料进行制作，拿到套料后发现保护板没有保护电压线，只有总正负极接线，这个缺点能不能抵消价格便宜这个优点
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