Hi, this is a 3S 40Amp BMS that I've used for my 12V power bank that utilizes car 12v chargers to charge my stuff. Basically a 3s9p configuration for for 18650 2500mah
Wholesale Reasonable price 20 Amp 3s Bms - Standard NMC BMS 3S 4S 7S 10S 10A-250A common port – Daly Manufacturer and Supplier | Daly