A front studio view of the GEARWRENCH GWLBJ30 12V/24V lithium battery jump starter. The portable unit features a durable molten orange and black housing with an integrated carrying handle, an LCD digital display, and side-mounted heavy-duty battery clamps.
A perspective view of the GEARWRENCH 3000 amp jump starter with the red and black jumper cables extended. A graphic overlay indicates the high-capacity lithium battery is capable of 85 plus jump starts on a single full charge.
A technical marketing infographic of the GEARWRENCH portable power bank. Callouts highlight safe operation with seven protective features, the compact and powerful 4.9-pound design, a portable multi-port power bank for smartphones, and a 3-mode LED emergency flashlight.
An infographic showcasing the performance specs of the GWLBJ30 jump starter. Text identifies the 3000 peak amps with maximum starting voltage, the ability to start 12V and 24V gas and diesel vehicles (up to 16L diesel), and the inclusion of heavy-duty low-profile clamps for easy battery terminal access.
A close-up detail shot of the GEARWRENCH heavy-duty jumper clamps. The image highlights the professional-grade copper teeth and low-profile black and red insulated grips designed for secure connection to automotive battery terminals in tight engine bays.
An action shot of a professional technician in protective gloves using the GEARWRENCH lithium jump starter. The worker is shown connecting the red clamp to a car battery under the hood, demonstrating the tool's portability and ease of use in a shop environment.
A lifestyle shot demonstrating the integrated 300-lumen LED flashlight on the GEARWRENCH jump starter. A worker in black gloves uses the bright light to illuminate the undercarriage and air brake system of a commercial vehicle during a nighttime inspection.
An action lifestyle shot of a technician using the GWLBJ30 unit to jump-start a 12V vehicle engine. The portable battery pack is shown resting on the engine shroud while the professional secures the heavy-duty clamps to the battery posts.
A product kit view showing the GEARWRENCH 12V/24V jump starter alongside its wall charging adapter and USB cable. The unit is shown in a garage setting, emphasizing its readiness as a professional-grade automotive battery maintainer and emergency power source.
A front studio view of the GEARWRENCH GWLBJ30 12V/24V lithium battery jump starter. The portable unit features a durable molten orange and black housing with an integrated carrying handle, an LCD digital display, and side-mounted heavy-duty battery clamps.
A perspective view of the GEARWRENCH 3000 amp jump starter with the red and black jumper cables extended. A graphic overlay indicates the high-capacity lithium battery is capable of 85 plus jump starts on a single full charge.
A technical marketing infographic of the GEARWRENCH portable power bank. Callouts highlight safe operation with seven protective features, the compact and powerful 4.9-pound design, a portable multi-port power bank for smartphones, and a 3-mode LED emergency flashlight.
An infographic showcasing the performance specs of the GWLBJ30 jump starter. Text identifies the 3000 peak amps with maximum starting voltage, the ability to start 12V and 24V gas and diesel vehicles (up to 16L diesel), and the inclusion of heavy-duty low-profile clamps for easy battery terminal access.
A close-up detail shot of the GEARWRENCH heavy-duty jumper clamps. The image highlights the professional-grade copper teeth and low-profile black and red insulated grips designed for secure connection to automotive battery terminals in tight engine bays.
An action shot of a professional technician in protective gloves using the GEARWRENCH lithium jump starter. The worker is shown connecting the red clamp to a car battery under the hood, demonstrating the tool's portability and ease of use in a shop environment.
A lifestyle shot demonstrating the integrated 300-lumen LED flashlight on the GEARWRENCH jump starter. A worker in black gloves uses the bright light to illuminate the undercarriage and air brake system of a commercial vehicle during a nighttime inspection.
An action lifestyle shot of a technician using the GWLBJ30 unit to jump-start a 12V vehicle engine. The portable battery pack is shown resting on the engine shroud while the professional secures the heavy-duty clamps to the battery posts.
A product kit view showing the GEARWRENCH 12V/24V jump starter alongside its wall charging adapter and USB cable. The unit is shown in a garage setting, emphasizing its readiness as a professional-grade automotive battery maintainer and emergency power source.
GEARWRENCH

GEARWRENCH GWLBJ30 12V 24V Lithium Ion Battery Jump Starter 3000 Amp Peak 42000 mAh Portable Power Bank with LCD Display and 300 Lumen LED Flashlight

Only 1 left
SKU: GWLBJ30
$387.99 USD

Description

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Professional Grade Roadside Rescue: Heavy-Duty 3000A Lithium Jump Starter and 42000mAh Portable Power Bank

The GEARWRENCH GWLBJ30 Lithium Battery Jump Starter is the ultimate insurance policy against dead batteries, designed for both professional shop use and emergency roadside assistance. Utilizing advanced 4-cell lithium technology, this compact powerhouse delivers a staggering 3000 peak amps, providing enough torque to start massive gasoline engines up to 16 liters. Whether you are dealing with a standard 12V passenger vehicle or a heavy-duty 24V commercial truck, this multi-voltage starter ensures reliable ignition in extreme temperatures ranging from -4°F to 140°F.

Beyond its jump-starting capabilities, the GWLBJ30 serves as a high-capacity 42000 mAh portable power bank. Equipped with multiple USB ports, it quickly charges smartphones, tablets, and other essential electronics, keeping you connected during power outages or long trips. Safety is integrated into every jump with seven built-in protection features, including reverse polarity, short circuit, and over-voltage protection, making it safe for even novice users to operate. Housed in a rugged molten orange casing with a backlit LCD and a 300-lumen emergency flashlight, this tool is an essential addition to any toolbox, glove box, or service vehicle.

Key Features

  • Dual Voltage Versatility: High-performance starting power for both 12V and 24V electrical systems.
  • Industrial Starting Power: 3000 Peak Amps rated to start gasoline engines up to 16.0 liters.
  • Massive Capacity: 42000 mAh Li-Ion battery provides up to 85 jump starts on a single full charge.
  • Advanced Safety Suite: Features reverse polarity, short circuit, high temperature, and over-voltage protection.
  • Multipurpose Flashlight: 300-lumen LED light with standard, strobe, and SOS modes for emergency signaling.
  • Backlit LCD Display: Provides clear visibility of battery levels and operational status at a glance.
  • Portable Charging: Integrated USB ports allow for fast charging of mobile devices and accessories.

What's Included

  • (1) 3000A 12V/24V Jump Starter and Power Bank
  • (1) Heavy-Duty Jumper Cable Set
  • (1) USB Wall Charger
  • (1) USB Charging Cable

Specifications

Manufacturer GEARWRENCH
Model Number GWLBJ30
Peak Amperage 3000 Amps
Battery Capacity 42000 mAh
Voltage Compatibility 12V and 24V Systems
Engine Rating Up to 16L Gasoline
Operating Temp -4°F to 140°F
Flashlight Brightness 300 Lumens
Overall Dimensions 9.8" L x 9.8" W x 3.8" H
Product Weight 4.9 lbs
Certifications UL Listed
UPC 099575702303

Pro-Tip: To maximize the service life of your Lithium-Ion jump starter, charge the unit to 100% at least once every three months, even if it hasn't been used. Lithium cells maintain health best when they aren't left in a fully discharged state for long periods, ensuring your 3000 Amps are ready the moment you turn the key.