This RoadStart Jump Starter is extremely handy to keep for use in case of emergencies The Sealey RS1312HV jump starter is fitted with two 12V power sockets that will accept any 12V device fitted with a vehicle accessory socket plug. It also has a USB outlet and features an independent on/off switch which allows the positive clamp to be connected without the risk of sparking and an integral LED work light for use at night. Features: Also features a USB outlet (5V/1A) Fitted with two 12V power sockets that will accept any 12V device fitted with a vehicle accessory socket plug Composite hi-vis green case with moulded rubber protection, integral battery cable storage and carry handle LED Battery condition, polarity check, with an audible warning if the polarity is reversed, and charge indicators Features independent on/off switch which allows the positive clamp to be connected without the risk of sparking and an integral LED work light for use at night Specification: Voltage: 12V Peak Amps: 900A Cold Cranking Amps: 400A Cable & Clamp Length: 725mm Auxiliary Output: 5V/1A USB (x1), 12V Vehicle Accessory (x2)