Here Is a Very Simple DIY BMS Circuit For Lithium-ion Batteries. You can make 3s, 4s, 5s etc... Battery Management System Cir… | Eletrônica, Eletronicos, Carregador
DIY Arduino BMS | Second Life Storage & Solar
Amazon.com: DALY BMS 10S 36V 80A Li-ion Battery Protection Board with Balance Leads Wires Common Port DIY BMS for 18650 Battery Pack : Electronics