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
3S 10A Lithium Ion BMS Module For 11.1V Battery at Rs 68.50 | Lithium Ion Polymer Battery in Surendranagar | ID: 2851118823373
Input (Charge) Voltage for 3S BMS Board? : r/18650masterrace