A dead boat battery can change your plans in a hurry. To solve that problem, Weego has introduced three lithium-ion powered portable jump starters. The smallest, the Js6 Standard will jump-start gas engines and power up laptops and other electronic devices. The two larger chargers, the JS12 Heavy Duty and JS18 Professional can handle larger gas engines and diesels up to 3.2 liters and 4.8 liters respectfully. All the Weegos include built-in LED lights and the two larger models have strobes for emergencies. The jump starters come with battery cables, USB cords and eight assorted laptop connectors. The units recharge in an hour and a half, and with a power loss of just 2 percent a month, can be stored charged for up to a year. They carry an 18-month warranty.