Jehugarcia on Youtube does a lot with batteries and powerwalls.

[bulrush]

He has good videos on this subject, tests new batteries, new BMS systems, invertors, etc. I think he converted his VW wagon into an electric vehicle. He might make for an interesting watch.
https://www.youtube.com/user/jehugarcia

 

[DisabledVet]

So has anyone else ordered any of his stuff and put it together? I am interested in ordering his x10 PCB kit and give it a try but having a hard time figuring out the cost of it all. His kit is $90 ... and that is just the stuff to make 10 boards each holding 7 batteries for a total of 70 18650 batteries for 700 watt-hours ... but you still need to buy the batteries and a BMS. Is it worth it?