The GB251+ is a 3000-amp portable 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.

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.

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.

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.

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.

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.

Technical Specifications

What’s in The Box

GB251+ Lithium Battery Jump Starter

56-Watt XGC Power Adapter

12-Volt 2-Foot XGC Cable

Protective Carrying Case

User Guide & Warranty Information

Starting Current

3000 Amps (Peak)

Voltage

24 Volt

Battery Types

24 Volt Lead-Acid Battery Systems

Internal Battery

137 Watt-Hour Lithium-Ion

Operating Temperature

-4°F to 122°F (-20°C to +50°C)

Charging Temperature

32°F to 104°F (0°C to +40°C)

USB (Output)

Dual 5 Volts, 2.1 Amps

Cooling

Natural Convection

12V XGC (Input)

12 Volts, 4 Amp

12V XGC (Output)

12 Volts, 15 Amp

Gas Engine Rating

Up to 32.0 Liters

Diesel Engine Rating

Up to 32.0 Liters

LED Worklight

600-Lumens

Product Size

Height: 8.62 Inches (218.9 mm)
Width: 12.43 Inches (315.7 mm)
Depth 3.68 Inches (93.5 mm)
Weight: 14.7 lbs (6.67 kg)

IP Rating

IP65 (w/ Ports Closed)

Limited Warranty

1-Year Hassle-Free Warranty