GOOLOO GT4000S Jump Starter 4000 Amp Car Starter 100W Two-Way Fast-Charging Portable Car Battery Charger Booster Pack for 10L Diesel and All Gas Engines, SuperSafe Lithium Jump Box for 12V Vehicles
Original price was: $149.99.$99.98Current price is: $99.98.
Price: $149.99 - $99.98
(as of Mar 24, 2026 18:56:48 UTC – Details)
From the brand
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: With a 4000A peak cranking power, the Gooloo GT4000S 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’s 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. Built-in 10 kinds of protection technology to free your mind of misgivings of misoperation and sparks.
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: Not only a jump starter battery pack,the GOOLOO GT4000S also features as a portable battery bank with three USB Ports and a 400 lumen flashlight with 3 modes(SOS, SPOTLIGHT, STROBE).Plus a 15 volt 10 Amps port for powering any 15V or 12V DC devices, like 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.
8 reviews for GOOLOO GT4000S Jump Starter 4000 Amp Car Starter 100W Two-Way Fast-Charging Portable Car Battery Charger Booster Pack for 10L Diesel and All Gas Engines, SuperSafe Lithium Jump Box for 12V Vehicles
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Original price was: $149.99.$99.98Current price is: $99.98.
Steve –
Great Jump Starter
I saw this reviewed on YouTube from a creator called “Project Farm.” He does some of the best real world test reviews out there. He tested 14 jump starters, including the Gooloo. The Gooloo jump starter came in second place overall and it was just $99. The first place jump starter was $370. An almost 4 times price increase for just a little improvement over the Gooloo jump starter. It arrived well packaged and included a ton of accessories. The Gooloo lets you jump start your car (which was super simple and worked great). But, it also has a built in light with several illumination patterns. I has two USB A output ports for charging your devices. A USB C port for charging the the Gooloo internal battery. The same USB C port can also be used as an output to charge your own device. It charged my video light at an amazing 40 watts (see my photo below of it charging). It also has a DC out port at 15V. There is a female cigarette lighter for the DC out port. However, I think 15 volts is a little high form some devices meant to run at 12 volts. So use caution. There is also a male cigarette lighter with a male USB C plug so you can charge the Gooloo from a standard cigarette lighter socket. There is a USB A to USB C male cord and a double male USB C cord included. This is a very complete package. I charged the Gooloo to 100% and then did a test start on my 4Runner. My 4Runner has an older battery that I am too cheap to replace. I tried to start the car, but it just went, “click, click, click.” So I hooked up the Gooloo jump starter and it fired right up. Not only did it start, it cranked the starter with authority. As Project Farm would say, Very Impressive! The size of the Gooloo is larger then most jump starters. But, that is because it has a massive battery inside which provides the excellent performance. But, it is not too big to be cumbersome. Everything fit nicely into the provided storage bag. The instructions were very clear and simple to understand. Overall, I am super impressed with the Gooloo jump starter.
Joseph Menolascino –
Good quality, works as advertised!
Works as advertised. On a 2019 ram 1500 Laramie. Battery was absolutely dead. I needed to jump battery one last time so that I was able to go buy a new one and install it at the mechanic. My mechanic couldn’t believe I successfully jumped the bat to get the truck to his shop to install a new battery use it again, and it worked like a charm. Easy to use and has a lot of power to jump a battery in extreme cold weather as I experience.
john b. womeldorf –
Five Stars — Shockingly Powerful for Its Size
The GOOLOO GT4000S Jump Starter absolutely blew me away. I honestly can’t believe something this small can start a vehicle with a completely dead battery — and not just once, but multiple times on a single charge.It’s compact, easy to use, and incredibly reliable. The clamps are sturdy, the display is clear, and the whole process takes seconds. This is one of those tools you buy hoping you’ll never need it, but when you do, you’re very glad you have it.Whether it’s for your own car, a second vehicle, or to help out a stranded neighbor, this jump starter is a must-have. Totally worth it!
Amazon Customer –
Essential Jump Starter
A true Jump Start… I used in it negative degree temperature three time and it worked on the first start on all three occasions… A must have and GooLoo GT4000S is well built and very functional and will never fail you… Easy to use…. Thanks for Project Farm on YouTube for his reviews and this is where I got it after watching his review… It really works like a charm…. Thanks GOOLOO
MKov –
Solid unit with handy LED display. Delivers a lot of power in a small package!
I found out about the Gooloo brand on YouTube (Project farm). At a price that’s 1/3 of the NOCO charger he tested, this is a very powerful unit for a much more reasonable price!I’d really give it a 4.5 if I could; knocking it down .5 of a point since Gooloo doesn’t include a wall charger. No worries I have a 2 amp wall charger that is more than powerful enough to get the unit to 100%. Very pleased with the first use! It started my car right up. LED display is a great feature. DC output is a nice feature if you need to power other 12 volt tools.Don’t buy the $69.00 Gooloo 100 watt wall charger; there are many other 100 watt wall chargers available on Amazon for 1/3 of the price.Update: It’s now 29 Nov 25, and the unit is totally dead. I’ve contacted support@gooloo.com; I’ll report back when I hear from their warranty department.Fiona at Gooloo stepped addressed my warranty issue, and I had a new unit in 5 days. Excellent customer support; I hope this new unit lasts longer!
ken hitchcox –
Works well.
I’ve used this a few time. It works well, but used about 10% each jump. It will go into cool down after 3 attempts and you will have to wait until it is ready again. Seems like a good safety feature but may slow you down a bit.
Someone –
The real deal authentic and original very good bought the first one and my friend took it then I bought the other for me.I charged 3 phone twice and used it to jump the car battery work perfect
Majed –
تمت تجربتها لأكثر من مرة على سيارة صديق ، كانت ممتازة واشتغلت السيارة بدون مشاكل ولم تسحب من بطارية الباور سوى ٥% في كل إشتراك وأراه معدل نزول جيد.