GOOLOO GT4000S Jump Starter 4000A Car Jumper Starter (Up to 10L Diesel All Gas Engines), 100W Fast-Charging Lithium Jump Box, SuperSafe Portable Car Battery Charger Power Bank for 12V Vehicles, Yellow
Original price was: $149.99.$99.99Current price is: $99.99.
Price: $149.99 - $99.99
(as of Sep 30, 2025 10:37:12 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.
Customers say
Customers find the jump starter works flawlessly multiple times and is easy to use as a fantastic little powerhouse. They appreciate its compact size, with one mentioning it’s small enough to lock up in a roll cart, and consider it worth the price. The device provides plenty of power to start trucks, and comes with built-in USB ports for charging devices. While some units arrive at 100% charge, others report quick battery drain, and the wall charger is not included.
10 reviews for GOOLOO GT4000S Jump Starter 4000A Car Jumper Starter (Up to 10L Diesel All Gas Engines), 100W Fast-Charging Lithium Jump Box, SuperSafe Portable Car Battery Charger Power Bank for 12V Vehicles, Yellow
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Original price was: $149.99.$99.99Current price is: $99.99.
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.
Gettin By –
WORTH EVERY DOLLAR.
Finally used it.It was very easy to use and fired up a ford explorer with a totally dead battery.It was 100% charged and after starting the explorer it shows a 89% charge left.The engine turned over faster than I would have guessed, pretty powerful jumper!
Tomkeh –
It will start just about any Vehicle and itâs easy to easy to use !
Itâs a great product. It works terrific and itâs so small and portable. Donât let that fool you itâs got the power to start my 6 liter truck when it is completely Dead.
J. Sands –
Simple and Powerful! Holds a charge for a long time!
Bought this due to several older cars that wouldn’t start in Minnesota winters. This jump starter performed flawlessly multiple times to get our cars started on the coldest mornings. Recommend using a laptop charger with a USB-C connector to rapidly charge this jump starter.
Kevin Whitley –
Amazing. $$$, but worth it (for my truck that likes to die)
This is a pretty wild device.I’ve used tiny portable jump starters before, but they were always based upon lead-acid (car battery) designs… so always at least a bit heavy.This thing, on the otherhand, feels like a large plastic (light) brick… that can JUMP YOUR FREAKING CAR (multiple times). I’ve had a race car battery (Lithium IIRC) before that was similar in its mind-blowing weghtlessness, so it’s really cool to see that in a jump starter.Truly insane.Pros:- It works- Nice screen- Holds its charge like crazy- Doesn’t even use much juice to jumpCons:- Couldn’t resurrect my long-dead battery… but no jump starter could.10/10
pfe516 –
It works as advertised
This is a quality battery pack. Works well to jump start cars and garden equipment. Note however that it recharges fastest by using the included 12 volt cable plugged into your car while the car is running. It will charge from a USB source but it can take days to charge from a wall plug brick which isn’t even included in the package so have to use your own. So just charge it from your cars 12 volt socket while driving because that will top off the battery in 30 minutes or so.
h2go4it –
Great value for the price!
Works great and holds a charge for weeks. Small enough to be handy to travel yet powerful to jump start.
Mic –
Handy
Super handy and strong. Have jumped mini coopers to Dodge Ram 3500. Success every time. My kids have also taken it camping and used it to charge phones.
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 –
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