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. 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.
MASSIVE POWER.
RATED AT
3000A
UP TO
32.0L+
GAS & DIESEL ENGINES.
JUMP START
24V
BATTERIES.
START VEHICLE WITHIN 60 SECONDS.
AUTO POWER CONSERVATION.
Start the vehicle within 60 seconds after pressing the power button on Boost. After the 60-second timeout is complete, the unit must be powered off, then back on, to initiate a new jump-start sequence. The yellow power LED indicates the 60-second sequence is over and can be reset if another jump start sequence is needed.
REVERSE POLARITY PROTECTION.
SPARK-PROOF.
We took our UltraSafe technology and made it better— UltraSafe 2.0. It's still our simple, mistake-free design featuring spark-proof technology and reverse polarity protection, but with enhanced thermal efficiency and power management to provide better performance and longer battery life.
USB-PRACTICAL.
CHARGE & RECHARGE.
CHARGE DEVICES.
USB CHARGE & RECHARGE.
With two built-in 2.1A USB ports, you can power multiple devices at the same time, such as smartphones, tablets, action cameras, wireless headphones, wearables and more. With over 137 watt-hours of lithium power, the GB251+ can provide endless hours of operation and recharge your devices multiple times before needing a recharge.
POWER 12V DEVICES.
PORTABLE POWER.
CHARGE UP TO 4X FASTER.
RAPID RECHARGE.
From 0-100% 4X Faster. Charge directly from the vehicle's 12-volt auxiliary port or the XGC4 4-Amp Power Adapter to recharge it’s 242 watt-hours lithium-ion battery in 8.5 hours.
UNDERSTAND THE PROBLEM.
INTEGRATED VOLTMETER.
Integrated Voltmeter / 60 Second Countdown Timer. The Boost MAX GB251+ is equipped with an integrated voltmeter to help pinpoint battery issues. The voltmeter doubles as a 60-second countdown timer, which shuts off GB251+ after 60 seconds to help preserve internal battery charge.
ULTRA-BRIGHT.
HIGH-LUMEN FLASHLIGHT.
More than a jump starter, Boost MAX is a useful tool for daily use and emergency situations alike. The GB251+ is equipped with a 600-Lumen LED flashlight with various brightness modes, SOS, and emergency strobe— handy to have as a roadside or road trip tool.
COMPACT & LIGHTWEIGHT.
UNRIVALED PORTABILITY.
Jump starters this powerful typically 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.
