Hooking a 17s battery to 20s Daly bms, how do I hookup?

Kozy

1 µW
Joined
Sep 19, 2021
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Hey guys, I know it’s gotta be possible. Got a 20s Daly bms and a 17s battery I want to hop to it. Right now I have the last missing cell wires in hooked and I can’t get the bms to wake up. I saw a vid on YouTube where the guy had 5 wires on last section hooked to one cell group and then 2 on the last group. I can see how the bms would read voltage and think it’s all good but I’m concerned that it will effect balancing or some of the protection features. Does anyone have experience with this? Perhaps the pack voltage is read from first neg and last positive string so middle ones just bleed power when voltage to high and won’t be effected by being hooked to same cell group.

I appreciate any insight

Kozy
 
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