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  1. damnub

    BMS confussion 16S or 17S -- CF-20S90A-A

    Hello! I wanted to wire up my (what i thought was 16s) BMS to my 16S Li-ion pack but Im thinking that it might be 17s. The serial number is CF-20S90A-A. which would be 20S but 3 diodes are not soldered. The balance wires are also confusing to me, it has 19 pins but 2 of them are seperate...
  2. damnub

    Controller sparks on connection..

    Hello! So im trying to get my motor to work with my controller and this have been kind of a struggle. First of, the instructions are super minimal and half chinese so I have very little to work with. I connected everything that maked sense to me. But when I connect the battery it sparks. (only...
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