We sell V5 LiFePO4 BMS (Battery Management System) separately, but there's no warranty for BMS only.
We have 12V/4s, 24V/8s, 36V/12s, 48V/16s and 60V/20s LiFePO4 BMS in stock. Other numbers of series can be custom made.
If you're interested in, please send email to [email protected].