BATTERY CHARGER 20A QFN-38; Battery Type:Lead Acid LiFePO4 Li-Ion Li-Pol NiCd NiMH; Input Voltage:55V; Battery Charge Voltage:55V; Charge Current Max:20A; Battery IC Case Style:QFN; No. of Pins:38; No. of Series Cells:12 ;RoHS Compliant: Yes