The charger can be used for a large diversity of battery types, such as starting, semi-traction, traction, STD,GEL, AGM, Calcium, Spiral and lifepo4/Lithium. The charger is suitable for many battery types because the charge voltages can be set. Model:BF12-12A,BF12-15A,BF12-20A,BF12-25A,BF12-30A,BF1224-12A,