Antigravity Batteries is a global leader in revolutionary battery technology. Their lightweight and sleek personal power supply kits (PPS) come complete with a variety of accessories to connect to dozens of electronics like your I-Phone, Laptop, MP3 Player and a ton more. Shop their different power supply units and get fast and free shipping everyday at JB Tool Sales. These jump starters are a must have in every vehicle for emergency purposes. Not only will Antigravity products start a car or power up your cell phone, many of their units can start diesel vehicles, motorcycles, watercraft, and the list goes on. We recommend Antigravity Batteries for jump starters and battery chargers over any of the other brands out there.