Professional booster pack designed for regular starting of 12v petrol and diesel cars, camper vans, 4x4s vans, tractors, boats etc and occasional starting of 24v Vehicles. Powerful 3200A (12v) and 1600A (24v) peak, 1450A Cranking (12v) 1300A (24v). 2 x 22Ah batteries can also be used to charge portable devices such as, Laptops, cameras, lights etc. Use and then recharge, the unit charges automatically when attached to the mains and can be left permanently attached to the mains supply while not in use. Reverse polarity alarm. Clamps 600 A, Cable 25mm diameter, 1.8m long. Powerful LED light.