GOOLOO GT4000S 12V 4000A Peak Jump Starter with 100W Two-Way Fast Charging | 3-in-1: 4000A Portable Car Jump Starter (12L Gas/10L Diesel) – 20,000 mAh Capacity – 150W DC Output – 3 Modes LED Flashlight

Price: $149.99 - $109.99
(as of Aug 01, 2026 12:53:17 UTC – Details)
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About us

GOOLOO has been a jump-starter researcher & manufacturer for decades. We are committed to making high-quality products for customers.

Work in Extreme Weather

Gooloo GT4000S can start your car at -20℃~60℃. Nothing to worry about even winter is coming.

All Questions Have Answers

Good service is our second pursuit after products. We value your ideas and suggestions.

A Meaningful Gift

GT4000S jump starter will be a great gift for your family or friends. It will be helpful in their driving life.

Other Buying Options

ONE & ONLY 100W Fast-Charging Car Battery Jump Starter: Only 1.2 hours can fully charge the jump box from 0% to 100%. 5 minutes of charging time are enough to start a car(100W car charger is included in the package). A single full charge can achieve 60 times jumpstart. You can also use your own fast-charging charger to charge this jump starter through the type-c port.
Up to100W Charging Speed for MacBook & Other Laptops: Charge it whenever and wherever as fast as the original adaptor for your laptops(Type-C port only).
Powerful yet Compact Portable Jump Starter: Powered by GOOLOO’s JUMPCORE technology, the GT4000S delivers 4000A peak cranking power and can jump-start nearly all 12V vehicle engines, including those up to 12.0L gasoline or 10.0L diesel, in just a few seconds. Unlike traditional car jump starters or jumper cable kits, it offers superior power in a more compact form. It is perfectly compatible with RVs, pickup trucks, motorcycles, SUVs, tractors, boats, and more.
Easier & Safer to Jump-start: This portable lithium car battery jump starter pack has a 3.2-inch informative LED screen clearly to show product status , so you can know when to start the car intuitively. GOOLOO’s SUPERSAFE technology provides 10 built-in protections, helping protect against misoperation, sparks, and other common safety risks.
24 Months Stand-by Time: Regular charging is not necessary as long as you own the GT4000S battery jump starter. The built-in 10 protection technologies also greatly extend the service life of the product.
More than a Battery Jump Starter: As part of GOOLOO’s Toolcore travel-assistance ecosystem, the GT4000S is not only a jump starter battery pack but also an emergency power source with three USB ports and a 400-lumen flashlight with three modes: SOS, Spotlight, and Strobe. It also features a 15V/10A port for powering compatible 12V or 15V DC devices, such as tire inflators, inverters, and more.
In The Box: GOOLOO 4000A Portable Car jump starter battery pack GT4000S, Heavy Duty Jumper Cables, SC 100W Car Charger, USB to Type-C Cable, Type-C to Type-C Cable, Cigarette Lighter Adapter, Storage Bag, User Manual.