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GOOLOO GT4000 Jump Starter 4000A 100W Pre-heating Tech

Name: GOOLOO GT4000 Jump Starter 4000A 100W Pre-heating Tech
Brand: GOOLOO
SKU: B-GT4000-RD
Price: 109.99 USD
Availability: InStock
Rating: 4.9 (63 reviews)

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Option: GT4000 Jump Starter

GT4000 + 100W Wall Charger + EVA Storage Box

GT4000 + 100W Fast Charger + EVA Storage Box

GT4000 + GT160 DUAL + 100W Fast Charger + EVA Storage Box

⚡ GOOLOO GT4000: 4000A jump starter for 12L gas/10L diesel engines.
❄️ -40°F Cold Start: Works in -40°F to 140°F, water/dust-resistant, and ultra-reliable for any weather!
🛡️ 10 Safety Protections: 3.2" LED screen, spark-proof, misoperation-proof.
🔋 Multi-Power Hub: PD100W Type-C, QC, USB, 15V/10A ports for devices.
💡 400-Lumen LED: SOS, spotlight, strobe modes.
🛠️ Built Tough: IP65 waterproof, flame-retardant, rugged rubber shell.
🚗 Compact & Reliable: Perfect for emergencies and extreme conditions.

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Frequently Bought Together

Total price:~~$509.96~~ $254.96

This item: GOOLOO GT4000 Jump Starter 4000A 100W Pre-heating Tech ~~$229.99~~ $109.99
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GOOLOO A6 Lite Tire Inflator ~~$59.99~~ $34.99

Description
Specs
Faqs
Reviews

Description

GOOLOO GT4000 Jump Starter – 4000A Peak Power, 100W Fast Charging, Extreme Cold Ready

GOOLOO GT4000 jump starter delivers reliable cold-weather performance, capable of starting your car even in extreme temperatures as low as -40°F (-40°C). Its advanced battery technology and powerful 4000A peak current ensure instant ignition when you need it most, no matter how harsh the winter conditions get. Never stranded in the cold again—this rugged jump starter works when others fail.

Extreme Cold Start with Pre-Heating Technology

GOOLOO GT4000 best battery booster for diesel engine features advanced battery pre-heating technology, ensuring reliable performance even in extreme cold conditions down to -40°F (-40°C). This innovative system automatically warms the internal battery to optimal operating temperature, delivering full power when you need it most—no matter how freezing the weather gets. Winter-proof performance for Arctic-grade emergencies.

GOOLOO GT4000 best diesel truck jump starter

Powerful 4000A Jump Starter for All 12V Vehicles

GOOLOO GT4000 is the best jump starter pack, that delivers 4000A of peak power to reliably jump-start dead vehicles, including large 12L gas and 10L diesel engines—perfect for trucks, SUVs, and heavy-duty equipment. Even after 24 months of standby without use, its intelligent power management ensures it's always ready for emergencies. No more dead batteries—just instant starts, anytime, anywhere.

100W Two-Way Fast Charging (USB-C PD)

Fully recharge the jump starter in about 1.2 hours
5 minutes of charging can be enough for an emergency jump start
Charge laptops, tablets, and smartphones at full speed, including MacBook and other USB-C devices

The USB-C PD port supports up to 100W input and output, making the GOOLOO GT4000 jump starter both a jump starter and a high-power portable battery bank.

GOOLOO GT4000 jump starter pack for diesel engine

Advanced Safety Protection You Can Trust

The GT4000 is equipped with 10 intelligent safety protections, including:

Reverse polarity protection
Over-current & over-voltage protection
Short-circuit protection
Over-temperature protection
Spark-proof design

A large 3.2-inch LED display shows real-time battery status, connection alerts, and charging information for safer, easier operation.

GOOLOO GT4000 best car jumper power bank

Multiple Power Outputs for Roadside Emergencies

USB-C PD 100W In/Out
USB-A QC 3.0 (18W)
USB-A 5V/2.4A
15V/10A DC Output (150W Max)

Power tire inflators, car refrigerators, inverters, and other 12V accessories wherever you go.

GOOLOO GT4000 best emergency battery jumper

GOOLOO GT4000 best emergency car battery charger comes complete with a 100W car charger, enabling ultra-fast recharging in approximately 1 hour while on the road.

GOOLOO GT4000 portable car battery charger and jump starter achieves a full recharge in just 1 hour when using the included 100W wall charger - the fastest recovery time in its class. Need to buy separately.

GOOLOO GT4000 best portable jump starter for diesel trucks

GOOLOO GT4000 best jump pack for diesel truck features an industry-leading 24-month standby time, maintaining reliable emergency power for up to 2 full years without needing a recharge.

GOOLOO GT4000 good portable jump starter

GOOLOO GT4000 diesel jump starter battery pack features a 3.2-inch intuitive LED screen that provides clear, real-time power status updates for precise monitoring.

GOOLOO GT4000 battery jump pack for diesel truck

Built-In LED Flashlight for Emergencies

GOOLOO GT4000 diesel truck battery jump starter features a multi-mode LED emergency light with three essential functions for safety and utility:

NORMAL (Steady Light) – Bright 1000-lumen floodlight for repairs, camping, or roadside work
STROBE – High-visibility flashing beacon for accident scenes or hazard marking
SOS – Standardized distress signal (3 short/3 long/3 short flashes) for emergencies

GOOLOO GT4000 jump pack for diesel truck makes vehicle resuscitation effortless with its foolproof 2-step operation: CONNECT and START.

GT4000 hand held jump box package includes a jump starter, heavy-duty jumper cables, a 100W car charger, USB to Type-C cable, Type-C to Type-C cable, cigarette lighter adapter, and a convenient storage bag.

Product Comparison

Specs

Faqs

Q1: What is the operating temperature of this unit and how to store it?
A: This unit is lithium polymer battery, operating temp is -20-60 ºC/ -4-140ºF. If the ambient temperature is higher than 60ºC/140ºF, the internal construction of the battery cells may be damaged, it may swell and become unsafe. So don’t store the device in vehicle which parked in hot weather for long periods of time.

Q2: How to start a vehicle with this unit?
A: Please refer to the instructions about “How to Start a 12V Vehicle“.

Q3: How do you know if this unit is connected to the vehicle correctly?
A: With the battery clamps connected to the vehicle battery, if the READY(Solid) appears on the screen, it means clamps connected correctly, while if [×] appears on the screen, which means it's connected reversely.

Q4: What should I do if this unit can’t start a vehicle?
A: Recharge this unit fully, and try to press the “BOOST” button after connecting the vehicle battery correctly, READY(Solid) will appear on the screen, then start the vehicle within 30s. If it still does not work, contact us at: contact@gooloo.com (Attach your order ID).

Q5: What should I do if this unit can’t charge up?
A: Charge it with a USB-C cable and wall charger for a full overnight period. If it still does not work, contact us at: contact@gooloo.com (Attach your order ID).

Q6: What should I do if this unit can’t charge other devices?
A: Try to charge the device with another charging cable, If it still does not work, please email us at: contact@gooloo.com (Attach your order ID).

Q7: How to turn off this unit?
A: This unit will be turned off automatically in 30s when it's not used. Or you can press POWER button for about 10s to force shutdown.

Q8: Can this unit charge other devices while it is being charged?
A: Yes.

Q9: Can this product charge other devices while starting a vehicle?
A: No.

Q10: How often does this unit need to be recharged?
A: It would be best to recharge it every 3 months.

Q11: Why it shuts off in 30s when charging other devices?
A: This unit may shut off automatically when charging for the devices that need light charging current, such as headphone, smart watch, etc. since there is minimum load current limitation (200mA) on this unit, so please use Low Current Mode when you are facing such problem.

Reviews

Robert F.

better than expected!

Becca B.

This battery is GREAT! Exactly what I was looking for.

Robert H.

Traveling from MI to MT dozens of times over the years my first unit offered comfort just knowing it was with me. Most recently my brother-in-law, planing a hunting trip to SD, i gave it to him. So now I have another. Best insurance policy I’ve never needed.

Earl K.

Works good surpriseed how much creaking power it has.

Luis F M.

Worked great, actually helped someone else get their car started like 2h ago.

Cleo B.

It was better than the last one i bought from you and that one lasted for 5 years under constance use.

Vance M.

Bought this one because I was so impressed with the the model without readout and pre heater. As with previous model, more than expected. 2 trucks 2 chargers... Right?. Then 2 inflators for the same reason. They even sent me a sweat shirt .

Marcellea L.

Great battery jumper!!

Joko W.

I did not know that the charger was not included. The description should be clearly stated that charger is extra. I also disappointed that no carry case with the charger.

Bryan B.

Very nice and quick shipping.

Cameron M.

Love the product. I'm a believer!

Nicholas B.

Awesome product, gonna get another one soon!

Will S.

A week after buying it, my car wouldn't start in the cold morning after camping. My friends had already left and without the Jumper I would have been screwed

Martin P.

Very nice unit and very easy to use!

Robert L.

Amazingly effective and compact device; fits in glove box.

Joseph P.

Haven’t used it yet.

Bob D.

Works great !

David T.

Was very disappointed that they show a picture with a 100 watt charger a hard case and a free gift, but did not get any of it.. but love the jump starter

Brian G.

This unit is amazing. Very rugged and high quality! I ordered it based on the unbiased and highly independent review from Project Farm! It performs really well.

Donald C.

Works great , fast shipping

Eduardo L.

High quality product, fast delivery I would recommend it.. thanks

Lawrence G.

Proper equipment for the Proper job

Doug G.

Haven’t got to use it yet

Matt D.

Very compact - nice display - 100w fast charging - used once and still charged at 93%

Curt R.

Came as expected. Bought for piece of mind over older unit. Like the compact design. Used to jump a 3.3 v6 sitting in garage. And have used it as a cell charger. Since I live in a cold climate I'm hoping this model with the heat tech will come in handy during any emergencies but haven't tested that feature yet.

Don M.

It does everything I wanted and more I saw it used on YouTube channel from Chickanic in Arkansas

Ben B.

I ordered the total package (jumper, fast charger, carry case) and only received the fast charging block. It took longer than I believe it should have, but they did make it right in the end and resent everything that was missing. I’ve used it a few times now. It came in time to jump my little Nissan car and my diesel pickup. I don’t drive them often and have to charge the batteries. I use a work provided vehicle 90% over the time. Both barely cranked and the jumper did its job with ease. Although, I feel like the charge may not last as long as they lead on, it was definitely worth every penny so far.

William Blake

Jumped off my truck with no problem.

Todd P.

This works in sub-zero weather. I live in Minnesota and had other jump starters that work fine in warm weather not work when the temperatures are freezing out. The reason I bought the GT4000 was it has an internal heater to pre-heat the jump start at sub-zero temperatures and it works great. Additionally to the pre-heater it has never labored in starting anything. Also, it has many outputs and can be used as a power source, and can be charged multiple ways. It came with a vinyl storage back which I didn't like so I bought the optional hard case and it offers great protection. Since my first purchase of this earlier I have purchased 2 more and 2 more cases, one for each vehicle.

Emily Davis

Easy to use. Recharge is real fast. Most important to me is I jump started my BMW 740i without damaging any of the sensors or electronics. Traditional booster cables using a second car is not ideal for jump starting these BMW's. Plus you don't need anyone to help you when your battery goes dead.

Sheronda D.

Glad to have this. It��s very easy to use & once connected to your battery, the car starts right up!

Jason D.

I had a lawn tractor and a 35 HP diesel that had been sitting idle for several months. Lawn mower wouldn't even click when the key was turned on. Connected up this jewel and it turned the starter like it was on a full charge. Started after the second attempt. On the big tractor, it initially turned the starter and then just clicked. Connected the GOOLOO and two rotations of the pistons and she fired right up. Absolutely mind blown as to the power this little box has. Definitely a keeper. Understand, this is not a charger but a starter boost to get you running. It will or should turn your motor over with the deadest of dead batteries.

Lily Anderson

Impressed. Jump-started first time and only used 8% of its stored power!

Brian S.

This product is made from high-quality materials, the craftsmanship is excellent, and I have no regrets purchasing this product.

Ken G.

Seems like a very nice unit, nice cables and accessories. I haven't needed to use it yet.

Sterry A.

I just love this GooLoo jump starter. It is light in weight and very easy to use. There is a number of applications you can use this for and not just jumping a vehicle. I really didn't know about this product. I watch the YouTube channel Everything Autos and Jeff was showing this product on one of his videos. With the Christmas Specials that GooLoo had going on I couldn't resist. What a smart investment. This product is so easy my wife can use it. That was the main reason I bought it. Thank you

Adelmo M.

Used it a twice, functioned flawlessly

Bruce F.

I only received the carry case and had to contact customer service. They eventually got the charger sent as well. They are very helpful and made sure I got the balance of my order.

Christopher U.

I just jumped a car with it that had 2.3volts v6 3.5L without a problem no hesitation and only used 3 percent of the battery. It is well made and after trying other brands that I had to return do to the poor quality this one seems to be very well made.

Mary Johnson

Excellent light weight. Great light and jumps big vehicles with no issue

Antonio C Michael

This Jumper pack is strong love the 100w fast 12v car charger charger with it came with a wall charger though but charges super fast with the 100w car charger have used it 40 plus times no issues I even did a youtube short showing it jump a 2000 4runner and run that 4runner with no battery connected just start and run off tge Jumper pack showed it on a few youtube videos jumping and cranking over a 6.8l v10 with no battery also and it's strong will built love the items it comes with and got a Eva case for it so I'm super happy look forward to grabbed the GT4000s model soon have also compared it against the hulkman alpha 85S and soon against the hulkman Alpha 100 the gooloo is my favorite so far the GT4000 has a few differences then the GT4000s like the GT4000 has a pre heating function for cold weather we're the GT4000S doesn't have that feature but its a good unit all in all super happy with the product and Purchase will be buying more got a little video for you as well.. I belive this is one of the strongest Jumper packs way stronger then noco way more reliable and it goes head to head with the hulkman 85s which it's stronger then but the hulman dosent do 12 liter gas and 10 literally diesel only the hulkman alpha 100 does upwards of 12 liter gas... well built haven't has any issues with it being 100 percent charged and left for 2 years without a charge it does Hold its charge super well for storage and have even jumped a 6.8l gas v10 with only 5 percent charge very impressive Jumper pack for sure

John Smith

This jump starter works great. I love the display feature that lets you know the capacity battery power left.

Marc D.

A really good starter pack and not expensive

James P.

A citizen SUV had absolutely no power. I used the jump starter...nothing! I then tried again using the boost and it fired right on up.

Alexander Peterson

Tested out charging in and output and gooloo performed well. Jumped a few dead batteries successfully. Very useful machine that is compact. I encourage people to get this for safety and convince on the road.

John F.

This charger comes with a cigarette lighter adapter socket. So, no need to buy one separately. The unit comes with an EXCELLENT foam-lined, sturdy box that you can use as the case. No need for a separate case. The cables nest under the charger using the paperboard divider. They even provide a nylon cinch bag for the cables. The unit itself has very good fit and finish, with a nice rubber, tethered cap to keep the cable ports clean when not in use. Very impressed with the quality of this charger. Highly recommend.

Francis Z.

This thing is amazing. After watching a couple different You Tubers testing and comparing others I bought this one. Dead batteries in my diesel truck and this thing will crank it over as if it was just running. as my other jump pack could only produces dim lights and not even a click when I turned key

Dylan S.

Bought because of Project Farm videos.

JOHN M.

The product is exactly as described. My son will be taking it to North Dakota in case he ever needs it. We charged it up with a laptop charger and the feedback on the big display is great. I am glad I have this display instead of just status lights. It seems like the display will make it very easy to use when you really need it. The included cables all seem to be well made. If there was a padded case option for just the power unit, I would buy it. The product included one draw string case for everything but I want a little more protection just because this unit is no nice.

Brent K.

Although I have not used it for jump starting yet I have used it to charge my phone and it works fine for that. I received the unit and was impressed with the accessories along with the box it came in but would of preferred that their storage case for this model had been included, especially at that price. It looks and feels well made. I like the bright LED light the big display for showing the state of charge and the charging voltage. Those features along with the Specs and all the positive reviews were the main factors in my decision to purchase the GooLoo GT4000. I purchased it direct from their website that just happened to be running a sale along with free shipping. I am glad I didn't wait to pull the trigger because last time I checked they were sold out of that model. Only time will tell but if everything functions as it should and the battery lasts for many years I will be more than pleased with my purchase.

Todd H.

I bought this products based upon The YouTube Channel "Project Farms", who is a notable, high integrity reviwer/tester of products. This model is alsways in the Top 3 amongst many being tested. I love mine and have used it several times. I wish it came with the case, however. I bought that separate (which is solid and a perfect fit). Looks great, too.

James C.

Nice and heavy construction. Great build quality. Has everything most other brands and models don't. Mine is an updated version just sent late Oct 2023, and charges at 120watts from the factory set 80% charge. Temps have not gotten below 19°F so I have yet to test heating capability.

RICHARD D.

I find that it’s well built - easy to understand and operate - a lot better than carrying long jumper cables and to keep in my truck

Mez

Have needed this a few times. Works everytime so far. Light is useless in low light areas or at night, because it points in the opposite direction of the clamps.

Jeff G.

I left a four day music festival today, and I started a truck and a car for other people. They had completely dead batteries, and my starter went from 100% charge down to 95%. I probably sold five of these chargers today, Everyone was impressed with it.

Tammy M.

Works great, arrived quickly

Frank Johnson

Charges quickly and last for repeated starts!!!

Vicki D.

I��ve used this thing from jumping off trucks to firing up my boat motor. Works like a champ

Morris A.

Good value and outstanding job

John

I keep this in my car just incase I or someone else needs a jump. My battery started going out and stop start would make my car die at a red light. Good thing I had this in my trunk Luckily I just needed a new battery.

OPHELLO C.

Full featured and worked well for starting and operating a 2.7L, 2000 Toyota Tacoma truck at 50 degrees air temp. with the truck's battery disconnected- as when starting this engine with the Truck's battery connected. And has fast charging capabilities.

Preston

I can't seem to buy extra cables from them. But other than that. It's extremely easy to use and works terrific. It's also very easy to use.

Katarina Anderson

Must have. Easy to use. Can have a dead battery up and running in couple mins. Everything stores in a box ready to go. Stays charged for a LONG period.

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