Jump Starter Sport Lithium Sport 400 Amp

The NOCO GB20 Jump Starter Sport Lithium Sport 400 Amp is purpose-built for drivers and mechanics who need reliable emergency power without the bulk of traditional jumper cables and a second vehicle. Weighing just over 3 pounds and measuring 9 inches in length, this lithium-powered unit delivers 400 amps of starting current—enough to crank over most gasoline engines in a single boost. Whether you're stranded on a remote jobsite, troubleshooting a customer's dead battery, or keeping a backup power source in your shop, the GB20 eliminates the dependency on another vehicle or corrosion-prone jumper cables.

NOCO's lithium-ion technology provides consistent voltage output even in cold conditions, a critical advantage over lead-acid or NiMH alternatives when winter temperatures drop. The compact form factor houses proprietary SafeStart technology, which prevents damage from reverse polarity, short circuits, and temperature extremes—essential protection when working with multiple vehicles or in high-heat engine bays. At 400 amps peak output, the GB20 is calibrated for efficient energy transfer; unlike oversized jumpers that waste charge, this unit delivers precisely what modern battery systems require, extending overall battery lifespan and reducing charging time between uses.

Professional mechanics, fleet technicians, and serious DIY enthusiasts benefit most from this portable power solution, especially those maintaining vehicles in remote locations or without access to a chase vehicle. The GB20 works across all 12-volt battery systems—trucks, sedans, SUVs, motorcycles, and lawn equipment—making it an indispensable tool for mobile service calls or emergency roadside repairs. Its compact dimensions and lightweight design mean you can store it in a glove box, under a seat, or in a tool bag without sacrificing workspace, and the rugged lithium core requires minimal maintenance compared to traditional jump boxes.