For reliability, choose The SIP 03936 Rescue Pac 1600  SIP Booster Pacs give you the ability to power your vehicles or otherwise when, and where, it is needed. They are powerful, rugged and heavy-duty, so you can rely on them if and when the time comes.  Features:   Lightweight  12V DC output socket  LED charge indicators  700amp cranking rate  800.0mm cable length  1600amp boost peak rate  True 22Ah battery capacity  Easy-to-use and ready for operation   Specification:  Net Weight: 8.38kg  Gross Weight: 8.9kg  Supply: 240v (13amp) Cable Length: 800mm Battery Capacity: 22Ah  Output Voltage(s): 12V Cranking Rate: 700amp  Boost Peak Rate: 1600amp  Output Sockets: 1x 12V DC  Packaged Dimensions (HxWxL): 275 x 100 x 440mm