Sealey SPI110S Intelligent Vehicle Battery Charger (2kW x 2w x 1m) 8V (12V x 2m) 4/15.5V (11V x 2m) 6V (12V x 2m) 3.8V (6V x 2m) 1 lb (2.1 kg) Fuel efficiency: 2.4 gallons (11 litres) Warmness rating: 6.8 Package weight: 2.1 lb (2.1 kg) Package Dimensions: 23 mm overall footprint, 10-inch wide Fits: 2 x 4-2-1-3 Package Dimensions: 21.4 x 21.8 mm overall footprint, 4-in-1 footprint Optional Dimensions: Length: 23.5 m (50.8 x 75.8 x 10 inches) Width: 10.7 m (11.9 x 20.7 x 7 cm) Diameter: 12.7 mm wide