The Boost Max Series - Introducing our most powerful lithium jump starters yet. Designed for the largest, most challenging engine starts ever. With over 3000-amps of starting power, it can jump start gasoline and diesel engines up to 32-liters.

UltraSafe - Safe and easy to use battery jump starter pack without the worry of incorrect connections or sparks. Safely connect to any 24-volt battery with our mistake-proof design featuring spark-proof technology and reverse polarity protection.

Commercial Grade - It’s commercial in every way. It jump starts almost every type of vehicle and equipment, including semi-trucks (up to class 8), motorhomes, coaches, buses, mining, agricultural, construction, and vocational equipment - 6, 8, 12, and 16 cylinder - and more. Plus, an integrated digital battery voltmeter for enhanced diagnostics.

Beyond Portable - Jump starters this powerful typically are enormous and weigh hundreds of pounds, but our high discharge lithium technology makes it the most compact and lightweight design in the world - weighing a mere 14-pounds. And its portable carrying case makes jump starting more convenient than ever.

Multi-Functional - It’s not just a lithium jump starter but also a portable power bank for recharging smartphones, tablets, and other USB devices, with an ultra-bright 600-lumen LED flashlight with seven light modes, including emergency strobe and SOS.

What You Get - GB251 24V UltraSafe Lithium Jump Starter Pack and Power Bank, XGC4 56W Power Adapter with Interchangeable 60-inch (1.5m) AC Cords - Australia (Type I), Europe (Type C), North America (Type A), United Kingdom (Type G) - XGC Kit, Max Protection EVA Case, and 1-Year Limited Warranty.

The GB251 is a 3000A 24V UltraSafe Lithium Jump Starter for gasoline and diesel engines up to 32-liters, including semi-trucks (up to class 8), motorhomes, coaches, buses, mining, agricultural, construction, and vocational equipment - 6, 8, 12, and 16 cylinder - and more. It features our patented safety protection with spark-proof technology and reverse polarity protection and extremely portable - weighing a mere 24-pounds. Includes the GB251 24V UltraSafe Lithium Jump Starter Pack and Power Bank, XGC4 56W Power Adapter with Interchangeable 60-inch (1.5m) AC Cords - Australia (Type I), Europe (Type C), North America (Type A), United Kingdom (Type G) - XGC Kit, Max Protection EVA Case, and 1-Year Limited Warranty.