Buy the GearWrench GWLBJ12 1200A 12V Lithium Battery Jump Starter and Powerbank online for just $42.09 — 50% off the $84.17 compare-at price. Compact enough for a glovebox, powerful enough to start stranded vehicles, and equipped with 7 safety features, it is the deal that belongs in every vehicle and shop.
What Size Engine Can a 1200 Amp Jump Starter Start?
With 1200 peak amps for 12V battery systems, the GWLBJ12 starts most gasoline engines in passenger cars, trucks, and SUVs, and many smaller diesel engines in all conditions. Always confirm your vehicle's battery type is 12V and follow the included connection instructions.
How Many Jumps Per Charge?
The high-capacity 4-cell lithium battery provides multiple jump starts on a single charge under typical conditions; store it charged and top it off every few months for readiness.
How to Use the GWLBJ12
Connect the intelligent jumper cables to the unit, attach red to positive and black to negative/ground, confirm the connection indicator, start the vehicle, then disconnect in reverse order. If the reverse polarity red light appears, the clamps are connected incorrectly — reverse them before attempting to start.
Specifications
BrandGearWrenchModelGWLBJ12 / 1200AProduct Type12V lithium jump starter and powerbankPeak Current1200 ampsBatteryAdvanced 4-cell lithiumSafety7 protections incl. reverse polarity, short circuit, high temperature, over voltageExtras100 lumen LED flashlight, multiple USB portsIncludesJump starter, intelligent jumper cables, USB wall charger, USB cable, storage bag
Compatibility & Use Cases
Compatible with all 12V vehicle battery systems — cars, trucks, SUVs, motorcycles, boats, and equipment. Doubles as a powerbank for phones and tablets via multiple USB ports, with a 100 lumen LED flashlight for emergencies.
Comparisons & Alternatives
Compared to heavy lead-acid jump boxes, the GWLBJ12 weighs a fraction as much and fits in your pocket or glovebox. Compared to other lithium jump starters, its 7 safety protections and included wall charger deliver more value — especially at this 50% discount.
Price & Deal Value
$42.09 vs $84.17 — a 50% discount. Apply coupon SAVE15 for an extra 15% off, and orders over $45 ship free — add any small item to unlock the shipping offer. This promotion makes the GWLBJ12 one of the most affordable 1200A jump starters online.
