Ian, I am trying to keep it simple. And I see plenty of evidence online that good quality lithium cells stay in balance. But, but, but. So a part of me wants to do the simple and easy thing. Perhaps I could do a similar board dividing the pack into the 6 parallel units?
Here are three BMS solution providers I have contacted.
Supower. No documentation. Few reviews that I can find. 60 bucks a board at 60 amps delivered to my home. So 360 for the base BMS.
bestekpower has some BMS with communications boards. very poor documentation which ... but good reviews amongst the EV community.
great reviews. lots of users. good documentation
The
REC BMS.
They have got back to me suggesting that I run the new Q BMS. I'll have more detail on that a bit later.