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Availability:
Only 3 left in stock, order soon!
Arrives
Saturday, Sep 26
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Color: GT4000-Red
Features
- Start Dead Batteries The GOOLOO GT4000 Arctic jump starter delivers 4000A peak current to instantly revive 12V vehicles up to 12L Gas and 10L Diesel engines. Compatible with cars, sports cars, SUVs, pickup trucks, motorcycles, and ATVs. BOOST mode restores extremely low-voltage batteries. With this powerful car battery jump starter, you can skip waiting for traditional roadside assistance and get back on the road immediately.
- -40F Pre-Heating Tech for Cold-Start Advanced pre-heating technology ensures reliable ignition in temperatures as low as -40F and up to 140F. This portable car jump starter performs in winter mornings, hot summer days, and harsh weather conditions without performance drop.
- 24 Months Standby A fully charged unit can remain on standby for up to 24 months. Recharge every six months to maintain peak performance. Designed with 1000+ charge cycles, this jump box for car battery portable offers long-term durability and dependable emergency readiness.
- SuperSafe Technology Integrated BMS provides 10 built-in protections including spark-proof, reverse polarity, short circuit, overcurrent, and overcharge protection. This battery jumper starter portable is safer and easier to use than traditional jumper cablesideal for road trips, older vehicles, multi-car households, and first-time drivers.
- 100W Quick Charging Recharge your car jumper starter portable from 0% to 100% in just 1.2 hours using the included 100W car charger. A quick 5-minute charge provides enough power for an emergency start. The PD 100W USB-C port also supports fast laptop charging for devices like MacBook, making this jump pack practical beyond emergencies.
- Power Bank and LED Flashlight More than a car jumper, this unit features 150W DC Output, PD100W USB-C Output, 18W USB-A Output, and 12W USB-A Output to charge phones, tablets, laptops, and other devices. Includes LED flashlight with high-beam, strobe, and SOS modesessential emergency gear for every vehicle.
- 18-month Warranty & Full Accessory Kit Enjoy 18 months of coverage (longer than typical 12-month plans) and a complete in-box setup: 1 car jump starter portable , 1 smart jumper cable, 1 USB-AUSB-C cable, 1 USB-CUSB-C cable, 1 carrying bag, 1 SC100W Max car charger, 1 cigarette lighter socket adapter,1 user manual.
Description
GOOLOO is a professional manufacturer that is concerned with the production and sales of Automobile Parts. Adhering to the business philosophy of providing customers with high quality products. Provide customers with a series of auto parts products (such as emergency car jump starter,battery charger, car vacuum and ect).
Brand: GOOLOO
Battery Cell Composition: Lithium Polymer
Voltage: 12 volts
Product Dimensions: 8.98"D x 3.92"W x 1.49"H
Vehicle Service Type: cars, trucks, motorcycles, watercraft, all-terrain vehicle (ATV), utility-terrain vehicle (UTV), lawnmower, and snowmobiles See more
Battery Type: Lithium Polymer
Voltage: 12 volts
Compatible with Vehicle Type: cars, trucks, motorcycles, watercraft, all-terrain vehicle (ATV), utility-terrain vehicle (UTV), lawnmower, and snowmobiles
Battery Capacity: 24000 milliamp_hours
Amperage: 4000 A
Peak Output Current: 4000 A
Automotive Fit Type: Universal Fit
Item Dimensions D x W x H: 8.98"D x 3.92"W x 1.49"H
Brand Name: GOOLOO
Manufacturer Part Number: JS-271
Manufacturer: GOOLOO
Number of Items: 1
Item Highlight: 4000A Peak Jump Box for 12L Gas & 10L Diesel - 100W Two-Way Fast Charging - 150W DC Output - Reliable Starts at -40°F
Included Components: GT4000 battery jump starter, heavy-duty jumper cables, 100W car charger, USB to Type-C cable, Type-C to Type-C cable, cigarette lighter adapter, storage bag
Model Number: GT4000
Manufacturer Warranty Description: 18-Month warranty
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Sep 26
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I had wanted this particular product for quite some time, so much so that I placed it in my Amazon Cart under Your Items, Saved for Later. Finally, it went on sale and a very good discount was offered. I saw the discount and immediately placed an order. This product is one of the best jump starters available of the market (not including those designed and produced for use in business operations). It has a very large electrical capacity (4000 Amps) and can also serve as a very large power bank for recharging other devices, if desired. This product is very well made, has a large LCD screen for delivering status information, and it conforms to the latest charging protocols, which in my case, meant that the product was capable of charging extremely fast. Perhaps best of all, this product is capable of operating in very cold temperatures thanks to its “Pre-heating Technology.” While lithium-ion batteries have a lot of incredibly useful properties, they do not function well when they are cold. The colder the temperature, the lower their performance. That is why EVs perform so poorly in cold weather and have such diminished range. The GT4000 jump starter has the ability to warm the lithium-ion polymer battery contained within the product so that its performance returns to near normal. The product’s Amazon page states, “pre-heating technology ensures reliable starts in extreme cold as low as -40°F.” Interestingly enough -40°F is the same as -40°C. This technology enhancement ensures that the product will operate properly in virtually all environmental conditions. As requested in the User Manual, the first thing I did was to fully charge the product. I used my new GaN-based charger and added a new USB-C Analyzer into the charging circuit. I was amazed to see that this product was capable of actually charging at 20-volts and 80-watts. While the new GaN-based charger is marked as a 100-watt charger, it seems that it was not capable of fully meeting its labelled specification as both my USB-C Analyzer and the GT4000 reported that only 80-watts was actually seen. In any event, the GT4000 charged very fast and the GaN-based charger actually got warm for the first time ever. The manufacturer, GOOLOO, states that the GT4000 has ten built-in protection technologies to ensure safe and protected operation of the device. The protections include: ○ Over-Charge Protection ○ Over-Current Protection ○ Short-Circuit Protection ○ Reverse-Polarity Protection ○ AI Software Protection ○ High and Low Temperature Protection ○ Spark-Proof Protection ○ Over-Voltage Protection ○ Over-Load Protection ○ Reverse-Charge Protection The GT4000 also has a built-in LED light that actually works and works very well. The light is very bright and would be a great help trying to get a car started on a dark and stormy night. The light has two flashing modes that I personally do not understand the need for. The electrical connection ports for the device are covered with a well-fitting silicone rubber cover to keep out dust, dirt, and water. The ports on the device include a USB-C port for charging the GT4000 and providing the ability for the GT4000 to charge other devices. This port conforms with the Power Delivery (PD) charging protocol and is capable of providing up to 100 watts (max) of power (PD100). The first USB-A port (USB1) supports the Quick Charge (QC) protocol, specifically QC3.0 and is capable of supplying 18 watts (max). The second USB-A port (USB2) provides [email protected] for a total of 12 watts (max) power provided. The GT4000 also has a DC output port and an adapter is provided that allows the connection of those devices that use a 12VDC plug like that used with a 12VDC power port or cigarette lighter. Finally, the last port is the connection for the battery jumper cables. The jumper cables included with the GT4000 are a set of robust clamps, sturdy cables (wires), and the connector to interface directly with the GT4000. The GT4000 jumper cables do not use a large plastic box on the end of the cable assembly like many other jump starter products. All of the needed electronics are placed inside the GT4000 product’s case. The GT4000 is supplied with a USB-C to USB-C cable, a USB-A to USB-C cable, a car charger adapter to charge the GT4000, a 12VDC output adapter, the jumper cables with clamps, and a very well written User Manual. All of these items are supplied in a very nice, sectioned and padded box for the storage of the product. That said, I purchased the GOOLOO Jump Starter case for storing the product. I wanted this product for a long time and I was finally able to purchase one at a very good price. It is a quality product and I am very happy with the product. It is everything that I expected and I believe that it will serve me well for a long time to come.
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Reviewed in the United States on March 26, 2025 by J. Harris
I wanted to use the GOOLOO GT4000 Arctic a few times before reviewing it, and it’s been excellent so far. I’ve used it to jump both a truck and an SUV with weak batteries, and it had more than enough power to get them started quickly. The truck’s battery was severely weakened, so I used the Boost option — and it fired right up without hesitation. That alone sold me on the unit’s real capability. The clamps feel solid, and once you understand the sequence, the whole process is straightforward. The instructions weren’t as clear as I would’ve liked, and I had to figure out a couple of steps on my own. Once I pieced together what the manual was trying to explain, everything made sense, but the documentation could definitely be improved. I also initially thought it came with a high‑output USB fast charger (I believe it was listed as 30W), but that was my misunderstanding of the listing. Even without cold‑weather testing yet, the performance has been impressive. It’s compact, powerful, and strong enough to handle larger vehicles without struggling. For anyone who wants a dependable jump starter with plenty of power in reserve, this one is absolutely worth keeping in the glove box.
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Reviewed in the United States on May 25, 2026 by John F.
Purchased the GooLoo GT4000. Chose this particular unit based on a few favorable reviews. The GT4000 has a heating element in it for colder weather conditions versus the GT4000s. While I live in AZ, I know batteries can be fickle with any type of cold so figured it would not be bad to have regardless. Especially when it comes to colder temps up north. I have a vehicle that sits longer than I'd like and every now and again runs the battery down. Decided it was about time to have a backup plan in case I am unable to find anyone able to help with a jump start. Well, I didn't realize how useful this would be. We have property and require a riding lawnmower. Since we don't use it during the winter, the battery was pretty dead on it. Figured this was a great opportunity to try the GT4000 out. Instructions are clear, hookup is extremely easy and safe. Once hooked up, decided to start it and see how this went. Man, the mower started right up. I don't think I've heard it start up so easily with that kind of power before! I have since used it a few times more for the mower with great results. I think the mower uses about 1% of battery each time. I have used it once to start my 4runner that sits as well with no issue. (photos and video included) The cigarette lighter charging adapter works well. I was at 80% the other day and needed to run an errand. Figured I would take the 4runner and bring the GooLoo GT4000 just in case the 4runner decided to die again. Plugged the GT4000 cigarette charging adapter into the 4runner and thee GooLoo 100W PD port. By the time I got to my destination, I was already 100%. I believe it charged from 80%-100% within that 15 minute drive. I was impressed. The GT4000 has 100w USB-C PD In/Out port, USB QC3.0 port(5V/9V/12V-18w max), regular USB port(5V), and a DC out port rated for 15V/10A (150W Max). This is nice if you want to charge some additonal devices from the jump starter. For me, the 100W USB-C PD port can serve for an unconventional purpose...powering my travel CPAP. WIth this jump starter, if I had to in a pinch, I could get about 2 days from my Resmed AirMini travel CPAP using my USB-C travel adapter. It's nice knowing that when I travel or car camp, I have a backup battery power source to my existing batteries. For those who road travel or car camp with their CPAP, this is a great emergency device to have in your vehicle that can also serve a secondary purpose for your CPAP device. (photos and video included)
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Reviewed in the United States on February 28, 2025 by Nate48
This thing is great. Charged it up and didn’t need it for a year. When I did it was ready to go . Great power and It’s great to know it will be ready when and if needed. Used more for others than myself . Great piece of kit
Reviewed in the United States on July 7, 2026 by Man named Quest
Really like this unit. The one major issue is charging. They should include the wall outlet charger with the unit. It costs around $50 and the case is extra too. All together it comes in around $220.00 for the package. While this is better than alot of others, i gave it 4 starts for that reason.
Reviewed in the United States on December 8, 2023 by Dakota
Works great for jumping anything Has a flashlight and different modes Bought for my rider mowers and jumped it with ease Very strong and powerful and keep it with me in my car at all times especially in the winter in New England with cold winters and batteries tend to die.
Reviewed in the United States on July 13, 2026 by Mike C
Fantastic quality and ease of use.
Reviewed in the United States on August 8, 2026 by William L. Mckinney
I've gotten the chance to use this a few times already, and it started the car up near instantly as if it was a topped off brand new battery. It still showed over 90% battery(I think 94%) after 2-3 jumps. I mainly picked this over the GT4000s for the heating after a stint so cold that there was no way my vehicle would start on its own, this way it's not an issue if I leave it in the car in the cold months. Where I live I don't expect to hit -40F, but maybe equivalent windchill on a bad day once out of so many winters, and at least knowing I have that feature in an emergency is nice.
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Reviewed in the United States on May 20, 2026 by Moo