Retire traditional lead-acid battery boosters and join the next generation of jump-starting with NOCOs Genius UltraSafe Lithium Jump Starters. Compact, powerful jump boxes for jump-starting cars, trucks, boats, motorcycles and even diesel engines. Patented safety technology like sparkproof connectors and reverse polarity protection makes it easy for even novice users. They also allow for charging USB devices like smartphones or smartwatches, cameras, speakers or headsets. Can also power 12-volt accessories like tire inflators, coffee makers, power inverters and other items. All models equipped with ultrabright LED flashlight with seven modes including SOS and emergency strobe. Holds charge for up to one year. Available: GB20 Boost Sport 400 amp Provides up to 20 jump-starts on a single charge and jumps-starts gas engines up to 4 liters. GB40 Boost Plus 1,000 amp Get up to 20 jump-starts on a single charge. Starts gas engines up to 6 liters and diesel engines up to 3 liters. GB70 Boost HD 2,000 amp Provides up to 40 jump-starts on a single charge. Jump-starts gas engines up to 8 liters and diesel engines up to 6 liters. GB150 Boost PRO 4,000 amp Gives you up to 80 jump-starts on a single charge. Will jump-start gas and diesel engines up to 10 liters and more. Size: 400 AMP. Type: Jump Starters.