The Marine Starter-Up is perfect for starting boats and vehicles and, extra outdoor power. It includes a maintenance-free, 12-volt 18-amp battery and a built-in, fully automatic battery charger. It’s capable of starting 30 vehicles without recharging, and it can be stored up to three months without charging. It features heavy-duty No. 4 gauge 28" cables, as well as reverse hook-up protection. Weight: 18 pounds.