That’s exactly what I said. It’s impossible. Everything has been confirmed by multi-meter. I checked to ensure that the sensor wires are all going to the right place. Generally, if they aren’t, the charger won’t turn on.
Yeah that’s how it works you can’t do otherwise or you are just wasting your time.
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Well, most BMS are passive balancing while charging by using bleed resistors to stop higher cell groups from charging to much while others are still too low.
So technically the BMS could stop individual p-groups from charging while others do.
Do you have another BMS or a charger that can handle the cell count?
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Do you have some groups oriented backwards/wired the wrong way around?
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The groups are all properly oriented.
I just charged it from 50% to 60% and groups 11-15 still haven’t budged.
I wish.
Problem solved!
I just ripped it open. I soldered the positive end of the charging lead to group 11-. 11-15 weren’t receiving a charge. I didn’t break physics. now I just need to figure out how to fix this.
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You can use a single cell liion charger to charge each group individually, you’ll just have to run some jumpers or use the balance wires
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So the overall voltage was not at 55,7V like chr1spe said, right?
More like 38V?
No, the overall voltage was right, I just wasn’t applying charge to 11-15.
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I mean the voltage between the charge ports, since 11-15 are not connected as you said.
Yes, I suppose that makes sense. I wonder where it comes up with 55.7v? which is the actual pack voltage.
From the balance leads. It doesn’t measure the charge port.
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