This portable 12V power pack will provide standby or emergency power to start vehicles with up to 3litre engine capacity. It has an Inbuilt compressor for inflating tyres or leisure products such as air beds, dinghies etc This Jumpstart also has an integrated light; ideal for emergency repairs/starting. Additional outputs include two 12V dc accessory sockets (cigarette lighter type) and a 5V USB connector allowing the unit to power a wide range of portable equipment such as mobile phones, laptops etc.