The ultimate 12V starting solution for repetitive starts on even the heaviest 12V vehicles. Polarity warning Spike protection Main switch High quality batteries and chargers Recyclable polyethylene casings Fully insulated cable clamps Welding grade cables Full in-house aftersales service. Voltage 12V DC, Battery 2 x 20Ah, Cranking Amps* 1020A, Peak Amps** 2400A, Cable clamp 1000A, Safety fuse 350A, Cables 35mm ² x 1.7m, Charger 4A automatic. 17.5kg.