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    Daly BMS (250A 4s 12V) reading wrong cell voltage for first cell

    Note: before trying, you have to have exactly the situation of the OP: all cells are perfect balanced, when using a volt meter however on the BMS there is a clear difference on the 1st Cell AND you have created a situation where by one of the negative sides of any of the ports was tied to the...
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    Daly BMS (250A 4s 12V) reading wrong cell voltage for first cell

    I solved the problem from my end, but don't know if this would work for you. The problem is that the DALY BMS has tied its 5V negative to the negative of the battery. If you now connect a PC or laptop to the USB serial, then when and if the BMS cuts out, or you otherwise uncouple the negative...
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    Daly BMS (250A 4s 12V) reading wrong cell voltage for first cell

    Same here: exactly the same problem on a SH39F003 DALY 300A BMS HW version 2.10, SH Version 6.29 Have you solved it?
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