GOOLOO GP4000 Jump Starter
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⚡ Powerful 4000A Jump Start – Instantly revives dead batteries (even at ultra-low voltage) with 1-click "BOOST" button—works on all gas or diesel engines up to 10.0L (cars, trucks, RVs, boats, etc.).
🔋 Massive Capacity + 3-Port Charger – Dual USB (1x fast-charge) + Type-C (5V/3A) to power phones, tablets, GPS—compact yet rugged for on-the-go use.
🛡️ 10-in-1 Safety Protection – Spark-proof, all-metal clamps, and anti-drop design (hardened plastic + rubber corners) for worry-free operation.
❄️ Extreme Weather Proof – Reliable starts from -20°C to 60°C (-4°F to 140°F)—60+ jumps per charge.
🔦 Emergency Flashlight – Built-in light for nighttime breakdowns.
✅ Universal Compatibility – Works on 12V vehicles: motorcycles, ATVs, tractors, yachts, and more!
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Frequently Bought Together
Description
GOOLOO GP4000 best jump starter for diesel trucks– The Ultimate 12V Jump Starter for Diesel Trucks (10L) & All Gas Engines | Emergency Lifesaver with 60+ Starts!"
GOOLOO GP4000 best semi truck jump starter – Instantly Revive Dead Batteries with 4000A Peak Power!
GOOLOO GP4000 best power jump starter– 4000A portable jump starter with reverse polarity protection for safe, worry-free boosts!
GOOLOO GP4000 best handheld jump starter – 4000A jump starter with super bright LED light (flashlight/strobe/SOS) for emergency rescue!
FAST RECHARGE: Fully powered in ~5 hours using USB-C & wall charger (not included)!
CAR CHARGER READY: Fully recharge in ~5 hours via 12V car outlet!
IN THE BOX: GOOLOO GP4000 Heavy-Duty Jump Starter + Smart Jumper Cables, USB-C Cable, EVA Case
Faqs
1. Does the GOOLOO Jump Starter only start vehicles?
The GOOLOO Jump Starter comes with a flashlight function and is not only a device that can start your car but also a portable charger that can quickly charge your mobile devices and laptops on the road.
2. How safe is the GOOLOO Jump Starter?
This unit includes 8 protection features, including over-current protection, overload protection, over-voltage protection, and overcharge protection, making it extremely safe to use.
3. What scenarios can I use the GOOLOO Jump Starter in?
This unit is perfect to jump start a dead car in ice and snow when the battery is undercharging, the car stalls while driving, or in emergencies, for medical rescue, or on road trips.
4. Is the GOOLOO Jump Starter difficult to use?
No. You can jump start your vehicle in three easy steps. You can simply clamp on, connect to the car battery and wait for a solid green light on the clamp, then start your car.
5. What battery does the GOOLOO Jump Starter use?
This unit uses a lightweight lithium polymer battery.
6. Can it jump-start a 6V battery?
No. GOOLOO jump starters can only jump-start 12V battery.
7 Can I use this jump starter on a gel battery？
Yes, as long as it is at 12 Volt.
8. What are the recommended operating and storage temperatures?
The GOOLOO Jump Starter includes a lithium polymer battery built for operating and storage temperatures of -20°C to 60°C (-4°F to 140°F). If the ambient temperature is above 60°C (140°F), the internal cell construction of the lithium polymer battery may be damaged, causing it to swell and become unsafe. Do not store the device in a vehicle parked in hot weather for long periods of time.
9. Why are the green and red light on the jumper cable blinking?
The jumper cable features a smart Over-Start Protection function. If you start the vehicle more than 4 times in 2 minutes, the jumper cable will turn on Over-Start Protection: The green and red light will start to blink and the battery clamps will have no output. When you disconnect the jumper cable plug from the jumper starter, the smart Over-Start Protection will reset.
10. How do I know if this unit is correctly connected to the vehicle?
The indicator on the jumper cable will show a steady green light when the battery clamps are correctly connected to the vehicle battery. If a steady red light comes on and the unit is beeping, the connection needs to be reversed.
11. Can this unit charge other devices while it is being charged?
Yes.
12. Can this unit charge other devices while starting a vehicle?
No.
13. How often should my unit be recharged?
We recommend to recharge the GOOLOO Jump Starter every 3 months.
Reviews
Paul C M.
No comment
Paul M.
EVERYTHING IS GOOD HAVE USED IT TWICE AND IT WORK JUST FINE!
Beverly M.
Car died. Goo loo saved us a service charge.
What a great product!
David A.
Used it within a week. Thank you
Jackie C.
It worked right out of the box . I would recommend it to anyone.
Dennis D.
Used it on my Mercedes and it worked like a charm.
Edward M.
Very nice
Mark M.
Haven't used it yet. Carrying in car in case needed for me or someone else.
jason p.
WAAAAY better than NOCO junk!!!
Stephen E.
Pickup has a completely dead battery after getting unit to stay on started truck right up but for some reason there was a delay
Joseph V.
All in all it went well! I was originally sent the wrong product and contacted the company, and they resolved the issue. The wrong product was returned and the correct product was sent to me and received brand new and in good condition. Customer service worked well, I just went without a charger a little longer than I wanted. Again, it was all resolved to my satisfaction.
John Y.
love it
William F.
Looks like a great product fortunately haven’t had to use it yet. Easy set up easy instructions. Thank you again.
Joe F.
I really like this you never know when you're going to need a boost and you have to call someone to help you
Seth
I had purchased two of these and they sadly had issues I got in contact with customer support and Fiona was awesome! She handled everything quickly and had me two replacements in two days! They work great and couldn’t be happier! Amazing consumer service provided by Fiona! Thank you
Richard E.
great product and easy to use
stanley w.
Have not had to use it yet! However knowing that I have it is a peaceful feeling!!!
Tom S.
Great jumper..Thanks for!
Regina J.
Used it already to jump VW Jetta, worked fine.
Rachel F.
I got this as a gift for my husband. He carries expensive equipment in his work vehicle so this is a must have! He loves it!
Wes T.
Easy and fast purchase.
Deborah S. B.
Happy with the product.
Richard H.
Havent used it yet but the first one I got as a gift works great.
Derek G.
My mother and father in-law where visiting us over the summer ('24). My show truck's battery was dead, literally only had 4 volts in it. He said let's try this. He pulled out this little red rectangular box and hooked it up to my truck. It turned over faster than It does with a fully charged battery, very impressed with the power. I said to him "what the hell is that, that was awesome!!". He said he got it off of Amazon during the winter (they live in the mountains of New Mexico) and it has been a lifesaver for them. I told him I have to have one of them. Been planning on getting one but had some setbacks. Well they sent me the 4000w yellow titan series jumppack for Christmas. Awesome product. Thank you for creating and making such a product. Very highly recommended.
John B.
Stopped at the local gas station to fill up. The young girl in the car at the pumps got out of her car and told me her car wouldn't start and she was waiting for her dad. I pulled out the Gooloo, connected it to her battery and her car started right up. She said she was going to tell her dad to get her "one of those things'"
Carlos O.
Good
Cody R.
Tried on a vehicle battery was frozen it was 5 degrees Fahrenheit. Started car better than it has when it was 80° out.
Chris H.
I ordered these for Christmas presents. The one I have was a life saver when the battery in the car my wife was driving died. She was on the side of the road out of gas with the flashers going and the battery died so I brought gas can and the jump box and we got her up and running again.
James C.
Received it in nice case. I've not used it yet. My neighbor loved me his before ordering mine, when I needed a jump start. So, I ordered my own. Now if a jump start is needed, I'm all set!
Brian V.
awesome, easy.
Lamar S.
It’s a very good tool to have
Charles S.
I use this magical device on everything from go carts to lawn mowers, all of my cars and even the hearse and limousine. It has never failed to get the vehicle running. Never fear, GooLoo is here!
Hugo C.
Good service
Tim R.
Have not needed to use it.
Gary B.
It works so nice. So convenient...love it.
Walter
I was very skeptical about this battery jumper. After I got it I was reluctant to even trying it for fear it wouldn't work as described. I know that sounds stupid but past experience with other products made me this way. When I did try it I was absolutely blown away with how easy and perfectly it worked. I got so excited that the experience of jumping a battery was fun. I now look for any opportunity to use it. I saw some guys trying to get their car started with jumper cables. They had been struggling for a while. I walked over with my GOOLOO GP4000 and instantly started their car in the awe of everyone. Love this tool.
Cjhest
I bought this because I was tired of having to use jumper cables and needing another vehicle nearby to jump me. I used it a couple of times last year and it saved my bacon.
This year, the battery in my daily croaked, the battery in my winter beater died, and the battery in my wife's classic car (12v converted) also took a dirt nap. The 800 cranking amps easily started a 283 ci V8, a 5.7L V8 Hemi, and a 3.6L V6 multiple times per charge.
I highly recommend getting one of these.
Tilly
A purchase like this typically starts with a dead battery. My car's battery appeared to be drained (and with an older car, that's easy to do). I needed a jumpstarter backup, FAST, so I ordered this GOOLOO and although it was able to successfully start the battery with the GOOLOO, the charge was very brief. The GOOLOO's basic diagnostics confirmed that the battery was essentially dead. The AAA assist guy confirmed the diagnostics -- DEAD battery.
I replaced the old battery, repacked the GOOLOO in its storage kit and now keep my GOOLOO in my car for any future jump start needs (mine or someone else's). Ready to go!
One of the GOOLOO features I really appreciate is that you don't need LONG connecting cables draped across the car. No more connecting someone else's car battery to your car battery -- just position your jump starter close to your car's battery, attach, charge -- go!
Another good feature is its ability to recharge your mobile devices. When you can't drive around to recharge your phone or laptop, the GOOLOO may be your backup plan.
Tip 1: READ THE AND FOLLOW THE DIRECTIONS for safe connecting and jump starting!
Tip 2: I live in an area of seasonal temperature extremes so I'm mindful to not leave the GooLoo in the extremely hot or cold car full time. In those seasons, take it inside and place it near the door leading out to your car for a quick grab-n-go with your GooLoo.
Tip 3: Set a reminder to check the GooLoo's charge. The re-charge is not very fast, not very slow. It just takes time. My mobile devices have this reminder set for every three months, or go old school and put a reminder on a paper calendar -- whatever reminder system use -- use it to make sure your GOOLOO is always ready to charge.
I'm pleased with the GOOLOO jump starter. It has given me greater peace of mind for my car (and even my mobile gear).
Dennis
The battery on my truck had died and i had no jumper cables. I had always wanted to try this tool so i ordered it. It arrived within a day and i had a trip to the airport the following day. It came charged so i jump the truck that evening before. Then the day of me leaving for the airport. I had to make an stop before the airpot. So i jumped it again. Then after my trip i jumped it again at the airport. Then i jumped it at the Walmart where i purchased the new battery. So i jumped the old dead battery several times on one charge and it still has 4 out of 4 bars of charge!! I will be buying these as gifts for buddies and as grad gifts. I know probably lame for a grad but they will thank me when they have a dead battery because they do not have to rely on someone else for a jump.
Juvat
Received the new Gooloo GP4000 today. Unpacked, saw it has 4 of 4 charge bar strength. My truck is a 1997 Ford F250 C/C 4x4 7.3L PSD, and its 6 year old Duralast batteries were to weak to start. Connected the Gooloo GP4000 and truck turned over fast. Started the engine with no problems. The GP4000 was now at 3 of 4 charge bar strength. Charged it up to 4x4 with my PC's GPU usb-c port. It charged to 4x4 in about 20ish minutes. This one test let me know the GP4000 is a beast of a jump-starter. Carefully placed the GP4000 in its convenient carrying case and stored it my truck. I ordered a UGREEN 100W USB C Charger. It should arrive tomorrow. I will store in the same case as the GP4000 for future use.
DALE B.
It would be a better design with shock (drop) absorbing shielding on the case. I haven't used it yet but it definitely charged and I expect it to work when needed.
Penny T.
I received the charger and put it to charge. I have not had to use it yet. I am confident that it will perform as it should.
Thank you for your quick response to my order!
Michael H.
Drive a semi have jumped it 3 times no problems..5 star
Gary L.
I love the one I bought directly for you but I never got the one I ordered from Tic Tok. Think that one was a slam.
Pedro E.
I had to use the device twice to start my car due to a battery failure. Worked flawlessly.
Alejandro D.
All good
randy o.
this is a great tool you can jump anything with it. You can use a diesel pick up and it doesn’t work near as good as this good job guys.
jerry f.
Like it, but haven't actually used it yet. One problem I have is how to get it all back into the case. Either provide a larger case, or a picture of everything should go back into it.
Charles M.
I've only used it a few times so far but worked flawless.
Joseph J.
This is my second GooLoo 4000. I keep one in my car and one in my wife’s car. It has never failed to jump any of my vehicles.
Nick R.
It works perfectly, exactly as I expected. This is a quality product at a fair price that I would recommend to anyone.
Terry W.
Works awesome used it in Canada a guys boat battery went dead hook it up motor started right up I was impressed with it power
Tim S.
Don't have any photos but used it to start model 65 Massey Ferguson tractor. Have several riding mowers to use it on and nice to have charging port available plus flash light. Great item!!
Paul A.
The jumper works perfectly! I highly recommended this charger!
Greg Y.
The best one I've used yet. Hooked it up to a completely dead battery and it started my vehicle like it had a new battery. Very Happy!
Harold M.
Built Very well and durable
Dan H.
Works great! Done everything that I wanted it to starting vehicles
Paul J.
Of course we bought our Gooloo GP4000s in case of dead car batteries. And even though we haven’t yet had to use them in that way, I am confident that they will excel at it when needed. They come very highly reviewed, and they look great and feel very sturdy. I have already used them to charge my tablets and to run fans, and that is an easy job for them.
I want to add that the Gooloo customer service is top notch. There was a problem with delivery, and even though it was not Gooloo’s fault in any way, they set it right! This is a great company and I will do business with them again!
Bruce C.
Works great started my lawnmower and my 5.9 Cummins without a hiccup love the gooloo GP4000
Paul C.
This product is awesome! Everything I expected and more
Stravinsky H.
Haven't used it yet
DAVID R.
first one I bought worked fine. 2 I just bought are my other vehicles.
Donna W.
Had a dead battery, started it when I took it out of the box, had 3 bars.
bowens c.
excellent service and product!
juan c.
Is an excellent tool
Bob
Simply amazing.Started this truck on the first try with a dead battery. I am impressed. Quick hook up and gave me two minutes of crank time. The device had also been sitting in the cold for three months prior to operation.
Isabella Morris
I bought the GooLoo 4000 in early summer of 2023 and haven't really needed it as a jump pack until February 2024 to start my Ram 2500 V10 Magnum. The ignition switch is a bit worn on the truck and it had stayed on and drained the battery dead as a doornail. My GooLoo hadn't been charged since summertime, but it showed that it was still fully charged. I hooked it up to the truck's battery and pressed the boost button. I turned the key on the truck, and the 8.0 V10 fired right up. The GooLoo 4000 does everything I needed it to do and I am 100% satisfied.
Ethan Anderson
Tried two different times to jump start a vehicle did not do it I just use it now to charge phone and I-pad
Eric W.
I spent more to get a high capacity and glad I did. After charing up which tool a few hours it easily started this Lull machine several times and it still does need to be charged. I highly recommend this and also plan on getting one to keep in my car!
michael H.
Unit works wonders....i have a Towing & Roadside Assistance Business and i have large jump boxes that i have used for years and prior to purchasing the Gooloo their were times i had too use 2 of my jump boxes and with the Gooloo that is all i need, Also on my tow truck that has 2 batteries that are 8 years old and between fair and bad condition when i use the Gooloo thats all i need to jump start it but when i use my normal large jump boxes i have to hook both of them up one to each battery and it still struggles to start my truck and with the Gooloo it starts immediately....id 200% recommend this to everyone.
Philip Howard
A must have for running a farm
Dale B.
I've only had it a few weeks, but there was an electrical issue with my car last weekend and was met with a dead battery. The GP4000 turned the engine over faster than the car's battery.
No disappointments!
Eleanor S.
I love it, I am a 74 year old widow. And a friend used one to start my suv. It worked so well l got one so easy to use. It has all ready paid for itself. Not having to wait for help EJS
Ron Ramblin
These things are such a lifesaver. Just the peace of mind having it in my vehicle while it's parked at the airport for a week is worth the price. I have a couple of these & this one is about 30° larger but with more than twice the starting current & 4x the peak current. The leads are nice & long so I don't have to leave it dangling off a motorcycle while boosting. The clamps are large & easy to get a grip but the metal that actually goes on the terminals is tucked way inside the plastic so they are very hard to put directly on a battery with side terminals.This booster hasn't failed to start anything I have put it on. I did notice that it got pretty hot after a while. It also takes a long time to charge.The storage bag for this booster is very simple & large & that is a main reason that this booster has become my go-to when I know I am going to need to use it. The bag does not have any protection, though, like some of these sets. It also doesn't come with any accessories like a 12v car cigarette lighter adapter though it does have a port for one.These are great little power sources for charging or running small electronics. I was able to power my portable satellite radio & a usb speaker on a picnick table on a camping trip. This has my favorite USB-C for charging & output. It also has 2 USB outputs, 1 is regular 5v & the other can go up to 12v but I don't have anything that requires that. I have noticed that some smaller devices won't charge off the USB or USB-C ports presumably because they don't pull enough amps to be detected by the device. I really haven't used the light much because it is it isn't particularly bright, faces 1 direction & isn't particularly easy to switch on. A lantern style light with a dedicated switch would be better.
Brent F.
I just got this so I haven't had a chance to use it yet. I'm mainly just adding pictures at the moment. I will update this review later on with my experience with it when I do use it. So far though, the build quality seems decent and It comes with a nice case that should help keep it protected in the trunk.
Michael L.
I gave it a five stars because of the quality. However, I think the company should offer the the yellow case along with the yellow charger. Don't understand why is there a read case to go with the yellow charger.
Mark
3 batteries semi was dead enough the lights were off, magically it jumped it, cables got hot but it worked, so impressed, I've had mine for almost 2 years
Edward P.
Works great
patrick c.
the device came well wrapped. it charged up to full charge, i am very happy with the service. i still have to use it when battery goes flat. Company service excellent.
carlucci c.
Works better than expected, I would recommend .
Jackie S.
Needed it and it worked great.
Mike W.
This is the fourth one I’ve bought. One for me and the others for gifts. Still top notch. I would rather support made in USA products but everything about this unit is so good I couldn’t justify not buying it. I’ve used mine about a dozen times, including some extreme situations and the rigs have fired up immediately every time. Time will tell if it holds up well but so far it’s been a gem.
David H.
1st day I got it charged it took it to WK with me and after WK my co worker left his lights on battery Dead I pulled out my portable Jump starter and BOOM! 1st Try stared right up he want to give me Money instead I said keep and buy you one GOLOO PORTABLE JUMP-STARTER!
James Lee
As an automotive technician I have used plenty of jumper packs, this one is by far the best of them all to jump dead batteries. The conventional jumper packs I have takes two to jump dead diesel batteries, you only need one GOOLOO 4000 to jump a dead diesel batteries. A little over a year my GOOLOO jumper pack internal battery swallowed up and failed. I contacted customer service and talk to Fiona gave a few details of what went wrong and with no hesitation they sent me a replacement one. Outstanding customer service! Thank you so much Fiona for your help from a pround owner of three GOOLOO 4000
Bill A
This portable battery is a vital part of the things you need to keep in your car.This battery can start your car if you break down anywhere. It carries a full charge strong enough to start any car. It��s easy to use and comes with attachments that can clip right to the battery just like jumper cables. It does take a full day to fully charge.But this is something you don��t want to be without. This is going to be as important as a spare tire in your trunk.The clever design also includes connections for USB. So if you wanted to you could charge your phone at an event where you can��t find an Electrical outlet. Highly recommended.
Mike W.
Stout little unit. Easy to use and has enough power to start a battery that’s been sitting dead for a couple months. Worth the money.
Davide W.
It does the starting car quickly holds up 3rd one that i got for me and two kids with case's great products Davide from NEw Hampshire thanks again
Terry O.
Works great
Aaron B.
Fast shipping. Perfect storage case for hiding this under the seat with all accessories. Super strong and can easily jump any car or large truck. Super product and great price.
John S.
Quite a bit of power in that little box. I gave it 4 stars because of the boost function. I'd much rather have it sending 100% of it's power 100% of the time without having to mess with pushing the booster which only lasts for a few seconds.
Aaron B.
Shipped quickly and came packaged very well. Opened the box to find it was already charged! Easy to use and a life saver for anyone who travels a great deal. Excellent product and came with its own charger cord and carry/protective case.
Matthew S.
With an odd brand name and coming from a country often criticized for poor manufacturing standards I was pleasantly surprised at the high build-quality. The solid construction of both the main unit and the clamps is immediately evident upon handling. It really does come across as a professional tool. The well-designed zippered semi-soft case is a nice bonus. All-in-all very well thought-out, and seems an excellent dollar-value, especially with the year-end discount. It will shortly be starting a sitting RV with a Ford 460 V8, and based on extensive internet reviews I have no worries...
Charles H.
My friend call me that the truck cannot start the engine because of battery died, he rented for moving the his house. Probably they didn’t turnoff some light.
The 30’ truck engine started with the jump starter very easy.
I just surprised that I haven’t used it recently and not charged recently maybe like a year.
A Paul M.
This thing did a great job but recently no longer charges. If its been off charger and I hit the power button it turns on but wont jump anything and wont charge now. For the 125 I paid for it, it should've lasted longer.Bought it May of 2023 and probably used it 10 times. ???? wish it had longer leads too.
UPDATE: Im upgrading my review to 4 stars for awesome customer service! GOOLOO reached out to me and sent me a brand new jump box kit. I thought I was stuck since I bought it back in May of last year but they have an 18month warrantee, which of course I didn't read. Kudos to companies that still take care of their customers. I am a happy man! Will advise long term on this bad boy.
Erik H.
I’ve used it a few times…work great. Has plenty of juice to jump most vehicles.
michael Z.
Puchased for my 1995 chevy pick up and glad that I did, used it the day after it arrived and it worked perfectly. We definitely keep with me at all times. Thank you for a great product. Michael Zigarelli
Matt D.
It’s been very cold for the last few days, my car wouldn’t start, put the gooloo4000 on my battery and it started right up. Very satisfied with my purchase .
debra M.
His and was absolutely amazed by this product. Will be getting more in the future for my kids
Richard S.
Very well rated product which I bought at a great price. I now have peace of mind knowing that I have a jump start option in my trunk when I need it. Thanks, GOOLOO!
Bob
I haven't had to use it yet but it charged up quickly and is holding the charge.
GOOLOO GP4000 Jump Starter
The Best Fits For Your Vehicles
The Most Practical Jump Starter Features
