SMAKN&reg; i-MAX B6 B6AC Lipo NiMH RC Battery Balance Charger Discharger Suit Input voltage: 11.0 -18.0 V Circuit Voltage: AC - DC (DC 11.0 - 18.0V / 5A) The maximum charging electric power 80W The maximum discharge power 5W Dimensions: 133mm*87mm*33mm