The SIP Rescue Pac 1600 is a powerful battery booster featuring a 1600A peak boost rate, 12v DC output socket, LED indicators, and more - ideal for service, mobile, and roadside applications. Portable and Lightweight with 1600A Max Boost Peak Rate & 700A Maximum Cranking Rate. The Charger is supplied with 800mm length heavy-duty cables and has a 22Ah maximum battery capacity. FOR MAXIMUM LIFE ALWAYS FULLY RECHARGE AFTER EACH USE & ALWAYS FULLY RECHARGE AFTER EVERY 3 MONTHS OF STORAGE.