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 Battery Jump Starter 2500 Amp Peak 16000 mAh Portable Power Bank with LED Flashlight for Gas and Diesel Engines

Only 1 left
SKU: GWLBJ20
$179.69 USD

Description

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Ultimate Roadside Security: High-Performance 2500A Lithium Jump Starter and 16000mAh Portable Power Bank

The GEARWRENCH GWLBJ20 12V Lithium Battery Jump Starter is a professional-grade essential designed to eliminate the anxiety of a dead battery. Engineered for both the busy automotive shop and the everyday driver, this compact powerhouse utilizes advanced 4-cell lithium technology to deliver a massive 2500 peak amps. This is enough industrial-strength torque to jump-start gasoline engines up to 8.5 liters and diesel engines up to 6.5 liters. Its rugged, pocket-sized design means you can carry professional-level starting power in your glovebox, toolbox, or backpack, ensuring you are never stranded in a parking lot or remote location again.

Beyond emergency vehicle starts, the GWLBJ20 serves as a high-capacity 16000 mAh portable power bank, capable of charging smartphones, tablets, and other USB devices multiple times on a single charge. Safety is at the forefront of this design, featuring seven integrated protection systems including reverse polarity, short circuit, and over-voltage protection to ensure a spark-free connection every time. Whether you are navigating a dark engine bay with the built-in 100-lumen multi-mode LED flashlight or providing a quick boost to a stranded customer, this GEARWRENCH jump starter delivers the reliability, safety, and power that automotive pros trust.

Key Features

  • Elite Starting Power: Delivers 2500 Peak Amps to start up to 8.5L gas and 6.5L diesel engines.
  • High-Capacity Battery: 16000 mAh Li-Ion core provides up to 40 jump starts on a single full charge.
  • Advanced Safety Suite: 7 built-in protections including reverse polarity, high temperature, and short circuit safety.
  • Portable Power Station: Multiple USB ports to rapidly charge your mobile electronics and accessories.
  • Emergency LED Light: Integrated 100-lumen flashlight with standard, strobe, and SOS signaling modes.
  • Rugged Grip: Non-slip rubber feet provide maximum stability on uneven or slick engine surfaces.
  • Extreme Weather Ready: Reliable operation in temperatures ranging from -4°F to 140°F.

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

Specifications

Manufacturer GEARWRENCH
Model Number GWLBJ20
Peak Current 2500 Amps
Battery Capacity 16000 mAh
Engine Compatibility 8.5L Gas / 6.5L Diesel
Operating Temperature -4°F to 140°F
Dimensions 8.6" L x 3.5" W x 1.4" H
Product Weight 1.3 lbs
Flashlight Brightness 100 Lumens
Voltage Output 12V DC
Safety Certification UL Listed
UPC 099575702204

Pro-Tip: To ensure maximum amperage delivery, always make sure the clamps are attached to the cleanest part of the battery terminal possible. If the terminals are heavily corroded, use a wire brush to clear a small spot for the jump starter's teeth to bite into—this reduces resistance and ensures your vehicle starts on the first attempt.