NOCO Boost X GBX155 is a portable lithium jump starter for 12-volt batteries in vehicles up to 10.0-liters gasoline and 8.0-liter diesel engines, including cars, motorcycles, trucks, ATVs, boats, RVs, vans, SUVs, tractors, and more. This all-new design for extreme jump starting power and rated at 4,250-amps releases maximum energy at every start. It comes equipped with 60W USB-C Power Delivery technology for ultra-fast recharging - go from 0% to jump starting in 5 minutes of charge - and powering your favorite USB-C devices like phones, tablets, laptops, wearables, and more. It includes our advanced safety technology - UltraSafe 2.0 - with spark-proof and reverse polarity protection but enhanced thermal efficiency and power management to provide better performance and longer battery life.