12V 3S 7P 40A BMS Li-ion Battery Pack Kits DIY Case Holder for 18650 Power Wall

3S40A BMS 12V 3S 7P Li-ion Battery BOX. 1 3S40A BMS. 18650 AA Battery 4 welding Nickel BMS 8S 24V 40A 200A 250A LiFePO4 Battery Common Port Balance Bluetooth Module UK. JBD BMS Smart 4S 12V 100A Lifepo4 Battery Protection Board Common Port w/Balance.

eBay