GB250+  Boost Max 5250A 12V UltraSafe Lithium Jump Starter

$999.95
You save 20%
$999.95
MSRP $1,249.95
Out of stock
UPC: 0-46221-19040-3
9.80lbs | 12.43 × 6.09 × 3.68

5250 Amp UltraSafe Lithium-Ion Jump Starter

The GB250 is a 5250A 12V UltraSafe Lithium Jump Starter for gasoline and diesel engines up to 16-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 15-pounds. Includes the GB250 12V 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 Boost Max Series - Introducing our most powerful lithium jump starters yet. Designed for the largest, most challenging engine starts ever. With over 5250-amps of starting power, it can jump start gasoline and diesel engines up to 16-liters.
  • UltraSafe - Safe and easy to use battery jump starter pack without the worry of incorrect connections or sparks. Safely connect to any 12-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 15-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 - GB250 12V 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.
  • Available June 2021
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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.

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.

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 242 watt-hours of lithium power, the GB250+ can provide endless hours of operation and recharge your devices multiple times before needing a 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.

More than a jump starter, Boost MAX is a useful tool for daily use and emergency situations alike. The GB250+ 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.

Integrated Voltmeter / 60 Second Countdown Timer. The Boost MAX GB250+ is equipped with an integrated voltmeter to help pinpoint battery issues. The voltmeter doubles as a 60-second countdown timer, which shuts off GB250+ after 60 seconds to help preserve internal battery charge.

Technical Specifications

What’s in The Box

  • GB250+ Lithium Battery Jump Starter
  • 56-Watt XGC Power Adapter
  • 12-Volt 2-Foot XGC Cable
  • Protective Carrying Case
  • User Guide & Warranty Information

Starting Current

5250 Amps (Peak)

Voltage

12V

Battery Types

12V Lead-Acid Battery Systems

Internal Battery

242 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)

Storage Temperature

-20°C to +50°C

USB (Output)

Dual 5V, 2.1 Amps

Cooling

Natural Convection

Dimensions (LxWxH)

12.4 x 6.1 x 3.7 in

Weight

14.7 lbs

12V XGC (Input)

12V @ 4 Amp

12V XGC (Output)

12V @ 15 Amp

Gas Engine Rating

Up to 16.0 L, Safe On All Engine Sizes

Diesel Engine Rating

Up to 16.0 L, Safe On All Engine Sizes

LED Worklight

600-Lumens