Ok, sorry for the confusion here. This is the ebay setup I was referring to:
I was originally thinking of 3 of these in series to get ~150v. But it sounds like this won't work from a BMS standpoint. So now, I'm thinking I should take 2 single Leaf modules, and wire them in parallel like this:
Then wire 21 of those in series like this:
For the BMS, following the Orion info below:
https://www.orionbms.com/manuals/pdf/nissan_leaf_modules.pdf
It looks like it could wire up like this:
but I'm not 100% sure this is correct, and not sure how to continue on the wiring, and not sure how to exactly handle (from a BMS standpoint) when I split the pack (because of physical issues) like this:
Per my contact at EVolve Electrics, a BMS (under $10k) is not possible with these Leaf units. But I have a feeling there is some communication issue here??
Thoughts??
PS: How the hell do I embed images into a post??