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  1. S

    Balancing a 20s battery back

    Hi lithium enthusiasts... After the new 20s3p 84v lg mh1 pack is finished (and hooked up to the original bms) I will have balancing leads going out from the pack. I've heard that this original bms dosn't really balance the cells. Even if it does it can't handle large imbalances. Anyway I need...
  2. S

    Used 18650, cell matching question. Match by IR or capacity?

    Hi fellow lithium battery enthusiasts :) In a week or two I'll spotweld my "new" 84v unicycle battery together. It's a 20s3p configuration. Current draw is about 3A per cell on avg. Charging rate is around 0.8-1A per cell. I'm building it from used LG MH1 18650 cells of slightly varying...
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