Item Number: SP-C002-00 Compatible with: Spirit Battery Plus Input power: 70 W Input voltage (DC): 10 – 30 V Max input current: 7 A Charge voltage: 30 V ~ 52.2 V Constant current output: 1 A Conversion rate: > 88% Dimensions: 116 × 52 × 33.8 mm / 4.6 × 2 × 1.3 inch