Thanks for linking that. I'd love to go from 10s6p to 5s12p so they can all go in series. I'm wondering if I could use BatteryHookup's busbars to make a Frankenstein's 12p busbar out of three of the pure copper 6p busbars with one in the middle as a bridge. To that idea you said "but the extra electrical connections would be undesirable.", what do you mean by that? Because that approach sounds rather accessible.You might want to look at a previous discussion of interconnections and BMS for these modules:
Battery split question
I was thinking for the 12p end plates to do the same approach: cut the discharge terminal off an end plate and bridge two of them with one of the 6p intermediate busbars.
then I'll have a clean 40s12p battery with a proper Orion 2

6p 300a BUSBAR FOR SPIM08HP 16ah - Copper/Steel
These busbars are for the SPIM08HP 3.7v 16ah cells. They fit 6 of the 16ah modules. These consist of 2 layers. A 1/32" layer of copper on the bottom and a 1/16" layer of steel on top. This set up is perfect for up to 300a. If you plan on drawing under 300a in your battery build these are...


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