[jbay808]

Seems like you're describing this product exactly:

https://ebikes.ca/product-info/grin-products/ligo-batteries....

By the way, the company that makes this, Grin Technologies, is really great. I've toured their facility and met the owner. (I don't have any sort of stake in them, though).

[smattiso]

Only 36V, each pack has a BMS. It's basically spot welded 96 wh packs @ 36V with individual BMS. Works OK I guess but lots of wasted space and weight.