A studio product view of the GEARWRENCH GWLBJ20 12V lithium ion battery jump starter shown vertically. The portable unit features a molten orange and black high-impact housing, an integrated power level indicator, and is shown with a 40 plus jumpstarts graphic icon.
An infographic showcasing the safety and utility features of the GWLBJ20 jump starter. Text identifies the compact 1.3-pound design, the seven protective safety features including reverse polarity protection, the 3-mode LED flashlight, and the portable multiple-port power bank capabilities.
A technical marketing infographic of the GEARWRENCH 12V lithium starter. Callouts highlight the 2500 peak amps, the ability to start 8.5L gas and 6.5L diesel engines, the heavy-duty low-profile clamps, and the high-capacity battery capable of 40 plus jumpstarts per charge.
A close-up perspective view of the charging interface on the GEARWRENCH 2500 amp jump starter. The image highlights the illuminated 100-lumen LED flashlight and multiple USB output ports including a USB-C In/Out port and high-speed 5V 2.4A charging ports for mobile devices.
A detail shot of the side profile of the GEARWRENCH portable power bank. The image showcases the dedicated 15V 10A DC output port and the rugged textured grip integrated into the molten orange housing for secure handling in greasy shop environments.
A close-up view of the jump starter cable port on the side of the GWLBJ20 unit. The protective rubber dust cover is shown pulled back to reveal the high-amperage blue connector port used for attaching the heavy-duty intelligent jumper cables.
A product shot of the heavy-duty GEARWRENCH jumper clamps. The image features a pair of high-tension red (positive) and black (negative) battery clamps with professional-grade copper teeth designed for maximum conductivity and secure terminal attachment.
A complete product kit view of the GEARWRENCH GWLBJ20 set laid out on a workshop table. The image includes the 2500A jump starter unit, intelligent jumper cables, a USB wall charger, a charging cable, and a black drawstring storage bag with the GEARWRENCH logo.
An action lifestyle shot of a technician using the GEARWRENCH 12V jump starter under the hood of a car. The professional, wearing black safety gloves, is shown connecting the intelligent cables to the vehicle's battery terminals to demonstrate the unit's portability.
A lifestyle shot showing the GEARWRENCH jump starter being used as a power bank in a garage setting. The unit is resting on a mechanic's tool cart and is connected via a USB cable to charge a smartphone, surrounded by professional wrenches and tools.
A studio product view of the GEARWRENCH GWLBJ20 12V lithium ion battery jump starter shown vertically. The portable unit features a molten orange and black high-impact housing, an integrated power level indicator, and is shown with a 40 plus jumpstarts graphic icon.
An infographic showcasing the safety and utility features of the GWLBJ20 jump starter. Text identifies the compact 1.3-pound design, the seven protective safety features including reverse polarity protection, the 3-mode LED flashlight, and the portable multiple-port power bank capabilities.
A technical marketing infographic of the GEARWRENCH 12V lithium starter. Callouts highlight the 2500 peak amps, the ability to start 8.5L gas and 6.5L diesel engines, the heavy-duty low-profile clamps, and the high-capacity battery capable of 40 plus jumpstarts per charge.
A close-up perspective view of the charging interface on the GEARWRENCH 2500 amp jump starter. The image highlights the illuminated 100-lumen LED flashlight and multiple USB output ports including a USB-C In/Out port and high-speed 5V 2.4A charging ports for mobile devices.
A detail shot of the side profile of the GEARWRENCH portable power bank. The image showcases the dedicated 15V 10A DC output port and the rugged textured grip integrated into the molten orange housing for secure handling in greasy shop environments.
A close-up view of the jump starter cable port on the side of the GWLBJ20 unit. The protective rubber dust cover is shown pulled back to reveal the high-amperage blue connector port used for attaching the heavy-duty intelligent jumper cables.
A product shot of the heavy-duty GEARWRENCH jumper clamps. The image features a pair of high-tension red (positive) and black (negative) battery clamps with professional-grade copper teeth designed for maximum conductivity and secure terminal attachment.
A complete product kit view of the GEARWRENCH GWLBJ20 set laid out on a workshop table. The image includes the 2500A jump starter unit, intelligent jumper cables, a USB wall charger, a charging cable, and a black drawstring storage bag with the GEARWRENCH logo.
An action lifestyle shot of a technician using the GEARWRENCH 12V jump starter under the hood of a car. The professional, wearing black safety gloves, is shown connecting the intelligent cables to the vehicle's battery terminals to demonstrate the unit's portability.
A lifestyle shot showing the GEARWRENCH jump starter being used as a power bank in a garage setting. The unit is resting on a mechanic's tool cart and is connected via a USB cable to charge a smartphone, surrounded by professional wrenches and tools.
GEARWRENCH

GEARWRENCH GWLBJ20 12V Lithium Ion Jump Starter 2500 Peak Amp Portable Power Bank (16000 mAh, 8.5L Gas 6.5L Diesel Capacity, Emergency Ignition)

Only 1 left
SKU: GWLBJ20
$179.69 USD

Description

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The GEARWRENCH GWLBJ20 is a 12V lithium-ion jump starter engineered to deliver 2500 peak amps for rapid ignition of gasoline engines up to 8.5 liters and diesel engines up to 6.5 liters. This portable power system integrates a 16000 mAh battery bank and advanced safety circuitry, providing a reliable starting solution for automotive professionals and emergency roadside recovery in temperatures from -4°F to 140°F.

Best Used For:

  • Automotive Field Service: Jump starting standard passenger vehicles and light-duty trucks in remote locations or busy service bays without needing a secondary vehicle.
  • Mobile Device Charging: Utilizing the high-capacity 16000 mAh battery bank to power smartphones, tablets, and essential diagnostic electronics during extended field operations.
  • Emergency Roadside Support: Providing reliable vehicle ignition and tactical illumination in low-light environments via the integrated 100-lumen emergency LED system.

Key Performance & Safety Features

  • High-Output Starting Power: Produces 2500 peak amps to reliably cycle large displacement gas and diesel engines under load.
  • Industrial Safety Suite: Features seven integrated protective systems, including reverse polarity, short circuit, and over-voltage shielding to prevent damage.
  • Weatherized Operational Range: Engineered to provide consistent starting torque in extreme environmental conditions ranging from -4°F to 140°F.
  • Emergency Illumination: Includes a 100-lumen LED flashlight with dedicated modes for constant light, strobe, and SOS signaling.
  • Stability Design: Equipped with non-slip rubberized feet to ensure the unit remains secure on slick or uneven engine surfaces during operation.

What's Included

  • (1) 2500A 12V Jump Starter and Power Bank (GWLBJ20)
  • (1) Set of Intelligent Jumper Cables
  • (1) USB Wall Charger
  • (1) USB Charging Cable
  • (1) Protective Storage Pouch

Technical Specifications

Key Value
Manufacturer GEARWRENCH
Model Number GWLBJ20
Peak Current 2500 Amps
Battery Capacity 16000 mAh
Engine Compatibility 8.5L Gas / 6.5L Diesel
Operating Temp -4°F to 140°F
Flashlight Brightness 100 Lumens
Voltage Output 12V DC
Dimensions 8.6 x 3.5 x 1.4 Inches
Product Weight 1.3 lbs
Certifications UL Listed

Pro-Tip: Before connecting, ensure the vehicle battery terminals are free of corrosion and the jump starter capacity is above 50% to ensure the internal lithium cells can provide the high-amperage burst required for reliable engine ignition.