Noco GBX55 Boost X 1750A 12V UltraSafe Lithium Jump Starter1750 Amp UltraSafe Lithium Jump Starter NOCO Boost X GBX55 is a portable lithium jump starter for 12 volt batteries in vehicles up to 7. 5 liters gasoline and 5. 0 liter diesel engines, including cars, motorcycles, trucks, ATVs, boats, RVs, vans, SUVs, tractors, and more. An all new design with extreme jump starting power for powerful engine starts. Rated at 1750 amps, this portable lithium car battery jump starter releases maximum energy at every