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3000A 12V/24V Lithium Battery Jump Starter and Powerbank - GearWrench

Part #: GWLBJ30

The GearWrench GWLBJ30 is a 3000A 12V/24V Lithium Battery Jump Starter and Powerbank designed for starting vehicles and charging electronic devices.

Key Features

The GWLBJ30 incorporates advanced 4-cell lithium battery technology. It delivers a peak current of 3000 amps and provides maximum starting voltage for both 12V and 24V battery systems. The unit features a high-capacity 42000 mAh lithium battery, capable of providing up to 85 starts on a single charge. It is rated to start gasoline engines up to 16 liters. For user safety, the jump starter includes 7 built-in protection features, such as reverse polarity protection, short circuit protection, high temperature protection, and over-voltage protection. Multiple USB ports are integrated for charging various electronic devices. Additionally, it includes a 300-lumen LED flashlight with standard, strobe, and SOS modes for illumination in diverse situations. An LCD display with backlight provides operational information. The unit is supplied with heavy-duty clamps and cables for reliable connections.

Applications

This jump starter is applicable for starting vehicles equipped with dead 12V or 24V batteries, encompassing cars, trucks, SUVs, vans, and various diesel equipment. It is suitable for use with gasoline engines up to 16 liters. The integrated power bank functionality allows for charging portable electronic devices such as smartphones, tablets, and cameras via its USB ports. The built-in LED flashlight serves as a light source for emergency situations or low-light environments. Its design makes it suitable for use in professional workshops, for roadside assistance, or for personal vehicle emergency preparedness.

Benefits

The GearWrench GWLBJ30 offers high-capacity starting power for a broad spectrum of vehicles and engine types. Its dual 12V/24V system compatibility provides operational versatility. The extended battery capacity enables multiple jump starts on a single charge. Safety is enhanced through multiple built-in protection features during jump-starting operations. The power bank feature provides a portable power source for electronic devices. Emergency lighting is available through the multi-mode LED flashlight. The light, compact, and rugged construction facilitates transport and storage.

Specifications

  • Model: GWLBJ30
  • Peak Current: 3000A
  • Battery Type: 4-cell Lithium-ion
  • Battery Capacity: 42000 mAh
  • Starting Voltage: 12V / 24V
  • Starts per Charge: Up to 85
  • Engine Compatibility: Gasoline engines up to 16 liters
  • Flashlight Luminosity: 300 lumens
  • Operating Temperature: -4°F to 140°F (-20°C to 60°C)
  • Weight: 4.9 lb (2.22 kg)
  • Overall Length: 9.8 in (24.9 cm)
  • Overall Width: 9.8 in (24.9 cm)
  • Overall Height: 3.8 in (9.7 cm)
  • Display: LCD with Backlight
  • Safety Features: Reverse polarity protection, short circuit protection, high temperature protection, over voltage protection
  • Included Components: Jump starter and power bank, jumper cables, USB wall charger, USB cable
Only 3 left in stock - order soon Inventory available from other suppliers, prices may be different

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  • Model: 422639
  • Shipping Weight: 5.73lbs
  • UPC: 00099575702303
  • Manufacturers Part #: GWLBJ30
  • Manufactured by: GearWrench
  • Also Known As: KDT-GWLBJ30, KDTGWLBJ30, KDGWLBJ30

This product was added to our catalog on Friday 26 December, 2025.

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