16 - 32 Cell Balancer, BMS

Author	Message
Solar Mike Guru Joined: 08/02/2015 Location: New Zealand Posts: 1204	Posted: 03:28am 03 Mar 2026         analog8484 said   That's an interesting 400A design build approach.  Have you ever done it for that level of current before? I also have had issues with a couple 200A BMS units and find the designs marginal at best.  Look forward to seeing your 400A unit in action. Not at that level no, each 50 x 5mm  busbar has 0.022 mR resistance if I use 50 x 3mm its 0.037 mR, either case the heat loss is minimal. The mosfets have 24 watts loss over 10 devices @400 amps, max current I will ever see is 300A for brief periods, it should survive. Mike