NOEIFEVO 43.8V 2A 3A 3.5A 4A LiFePO4 Batterie-Ladegerät für 12S 36V 38.4V LiFePO4 Batterie, mit LCD-Anzeige, Kühlventilator, automatischer Abschaltung(RED) 92.4V(81.4V 82V 20S) Charging current: 4 A

Charging current: 4 A

and pin 2− is the negative terminal

Charging voltage range: 69V-73

Most importantly

Dimensions: 172 x 90 x 50 mm

NOEIFEVO 43.8V 2A 3A 3.5A 4A LiFePO4 Batterie-Ladegerät für 12S 36V 38.4V LiFePO4 Batterie, mit LCD-Anzeige, Kühlventilator, automatischer Abschaltung(RED) 92.4V(81.4V 82V 20S) Charging current: 4 ADue to some batteries with M25 charging connectors that have integrated charging protocols, our charger cannot support batteries with built in charging protocols. Please confirm with the battery supplier before purchasing whether the battery has an integrated charging protocol. For M25 (2+1+5) and M25 (2+4), the standard polarization is 1+ for positive and 2 for negative. If you require a different polarization, please inform us. Contact options: You