







⚡ Power up your ride & your life—jumpstart like a pro, anywhere, anytime!
The GOOLOO GT4000S is a compact yet powerhouse 4000 Amp lithium jump starter designed for 12V vehicles including large gas and diesel engines. It features ultra-fast 100W two-way charging, a multi-port USB hub for device charging, and a bright 400 lumen flashlight with SOS mode. With 10 safety protections and a clear LED display, it ensures safe, reliable jump-starts and versatile roadside utility. Perfect for millennials who demand efficiency, safety, and multi-functionality in one sleek package.











| ASIN | B09M9HQG73 |
| Amperage | 1000 Amps |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #731 in Automotive ( See Top 100 in Automotive ) #33 in Jump Starters |
| Brand | GOOLOO |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,447) |
| Date First Available | November 20, 2021 |
| Global Trade Identification Number | 33487794897135 |
| Item Weight | 4.4 pounds |
| Item model number | GT4000S |
| Manufacturer | GOOLOO |
| Manufacturer Part Number | GT4000S |
| Peak Output Current | 4000 Amps |
| Product Dimensions | 9.05"D x 3.93"W x 2.12"H |
| Specification Met | CE, FCC |
S**E
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.
J**O
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.
J**F
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!
A**R
Highly recommended. Easy to use during stressful situations.
Already used it several times. I'm really pleased with how it performs. The big screen with simple large read out is super helpful. They also printed some simple instructions on the back of the unit which came in very handy. Great jump starter. Highly recommended!
M**V
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 [email protected]; 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!
R**.
Si sirve y si prende una troca con la pila totalmente muerta.
S**E
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
M**D
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.
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1 month ago
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