Phyllis S.
Excellent product, easy to use, charges quickly.
Kenneth C.
GREAT. RELIABLE
Kenneth M.
Very good addition to my needs. Safety and added peace of mind during the winter months.
David T S.
I had one for our main vehicle and was very impressed with it’s function. Now needed one for a second vehicle. I really hope I never need to use it but happy to know IF I do…
Chris M.
The unit looks and feels good. I like that I has a two-year longer warranty than my previous jump-starter. I have not had to use it yet, but look forward to the opportunity.
Clint B.
Still have not needed to.use it but cold is coming here so may need it soon!
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.
Amy C.
Awesome. Keep in the car at all times
James G.
The booster was here 2 days after ordering so that was great .
I haven't used it yet, but I know they are excellent because I have borrowed my friends for a emergency boost.
The booster with the case are of excellent quality and they are very easy to operate. Very satisfied!
Theo P.
Looks really nice. Come charge at 75%. The case to put it in is also nice. It comes with the wires to boost a car, the one to put in your ciragette lighter in your car and much more. It looks like good quality as I didn’t have to use yet, but so far, I’m pretty satisfied with the item and the warranty that GOOLOO offer with their products.
Alan Y.
Have not used it yet.Shipping was faster than expected.
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.
Robert S.
Used it the first weekend I had it out the box and charged it full. While we were camping I used this to charge 2 cell phones and other electric devices and then used the jumper pack multiple times on different ATVs and even helped a fellow camper jumpstart their car. All that and only went down one bar of battery! Very impressed love this handy little tool. Have replaced the jumper cables in my truck and this lives there now.
Alan M.
Seems good. I haven't used it to jump a car but I really hope I don't have to. I have another gooloo jump starter which I have used and worked perfectly so I bought the GP4000 based on my past experience.
Robert B.
I bought one of these for my car and I was very pleased with the quality and how simple it is to use. I was so impressed with this device that I bought the same one for my elderly parents vehicle and showed them how to use it. Now if they accidentally drain the battery they do not have to wait for a tow truck to come and boost the battery. They can be back on the road in minutes. They can also use this to charge up a cell phone. I feel better knowing they have this in their car as well. Very happy with both of the GP4000 booster packs I bought. Works just as quick and easy as all the videos on YouTube and gives you peace of mind.
Robert.
Brian H.
A friend's battery died and this product did thebjob, with charge to spare
John D F.
Love the product! My 3rd. Easy to order and fast delivery
Ed C.
Good kit, I have yet to put it to the test.
Would be nice if an AC wall charger as included in the kit.
Kaylene T.
I ordered two. One that I am going to gift at a draw for a work safety meeting. One for myself.
Robert B.
This GP4000 from really impressed me with it's quality , compactness and is easy to use and safe. Also comes in a nice case. This was just as good as all the reviews I watched on YouTube before I purchased. I am very happy with this battery booster along with the extra functions of a flash light and a phone charger. I would recommend this GP4000 to all looking for good quality, affordable battery booster.
Glad I purchased.
Robert.
TIMOTHY M.
Great pricing!
Looks like a great product....haven't used it yet
Kyle K.
Unit has good power but would have like display for voltage of boosted battery, % charge etc.
John S.
These are great! easy to use lightweight. Can use multiple times before needing a charge.
Todd B.
My 53-year-old classic car recently came out of extensive storage with an old and completely dead battery. With my new Gooloo 4000, it started on the first try!
Carson T.
Solid well made unit. Charge went well, have not had to use for jump yet but am confident it will perform as expected.
Lori G.
The product is exactly as I had hoped for!!
Wojciech Z.
Great product, simple to use and reliable. Added bonus is a high quality carrying case and everything needed stored inside.
Randall P.
Appears well made and good quality.
Beverly C.
Haven’t used it yet, but are pleased with the unit so far
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!
Philip Howard
A must have for running a farm
Steve P.
Works awesome can jump several times it even starts my old 6.5 diesel very happy
Suzan L.
Je ne l'ai pas encore utilisé mais j'aime bien la grosseur et c'est léger.
James M.
Great products, just bought a second unit.
Angelo M.
Love it, excellent batter capacity. Love Gooloos products, they are the best in the industry. I just ordered a gooloo tire inflator off Amazon. Looking forward to it
Jim H.
We loved the GP4000 so much we bought another one for our second vehicle. Cold weather forced us to use the jump starter and it demonstrated more than enough power and was so easy to connect. Great peace of mind!
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.
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.
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
Ronald S.
AS I dont have a cell I cannot send photos , sorry but I love it . Tks
Barry L.
Have used the jumper on my tractor and a neighbours car. Both on same charge and with no issues. Highly recommend the GP4000
Sean M.
I ordered one and it was delivered within a week and I fully charged it and used it 4 times on different vehicles, and each one started without hesitation, very impressed with Gooloo
Randy J.
Works well I really like the ease of use and small package. I have an 8L diesel man lift and jumped it in the cold weather no problem.
John D F.
bought this jump starter as a gift so can not really comment on use. The packaging was first class as was the customer service. Package arrived ahead of scheduled delivery date and the components look to be of high quality, Would reccommend
Marc C.
Great booster, just wished they had of shipped the free item that was supposed to be included.
David R.
Awesome item, get one for yourself
Emilia Jones
Worked as advertised, my car started right up
JOHN B.
Excellent experience from ordering to delivery. Thank you!!!!
Definitely order again.
ARLIE G.
I haven't used this yet but understand they are excellent.
JOHN B.
Very professional experience all the way around!!!!
Jérôme P.
C'est parfait et sera très utile..
ALAN H.
It is good product. However, I had miss-leading adv with saying "free tire gauge" -not included- which unacceptable by a high quality company. I am disappointed.
Johan R.
Fast shipping I like it thanks
Serene
I purchased this model for my brother and decided to get one for myself. I was hospitalized and that caused my car batteries to all die. It worked great in my Dodge Magnum with a 5.7 Liter V8 engine with a nearly drained battery. The battery was so low that the car didn't give it an adequate charge even after 20+ miles. I ended up pulling the battery out and charge it externally. On my Lincoln, the charger started it no problem but a Lincoln will be a Lincoln and the car was in the repair shop for over a month. This killed the battery again and permanently damaged one cell. The safety of this jump starter combined with the slightly charged but damaged battery made it nearly impossible to start. The safety kept disconnecting despite me pushing the button. The only was was to completely disconnect the existing battery for the jump starter to not shut off when the bypass button was pressed.
As I said, it's a good feature as someone's that I know didn't have these safety features and caught on fire when he didn't disconnect it while driving after the car started.
Bob
I haven't had to use it yet but it charged up quickly and is holding the charge.
Dylan
I've been in the car business for 34 years and used a lot of jump starters. Gooloo is hands down the best. They're reasonably priced, powerful, and reliable.
RICHARD B.
Handy for emergency
Robert L.
I bought the GP4000 along with the wall adapter.It arrived quickly & in perfect condition.It was about 3/4 charged when I got it so I plugged it in & charged it fully.
I haven't used it to boost yet but so far all indications are positive so I'm sure it will work perfectly when the time comes to use it.I'm 100% satisfied so far & I've found many positive reviews for GOOLOO jump starters which led me to purchase one.
John.H
I bought this based on a comparison review I saw on YouTube by Project Farm. There were units that cost more but the performance in his rigorous testing was fairly equal. I've used it a few times now since I bought it last November because my work truck has a parasitic draw that pulls the battery down if it sits a few days. This booster is twice as big and heavy as the old one I had before and turns the engine twice as fast and still has over 90% remaining power after a boost that would completely deplete my old one.
It also comes with a really nice tough shell carry case and accessories that will let you plug a cigarette lighter plug into it. It will easily power my 20 watt GMRS radio and can be used to charge your phone in an emergency. It's awesome, I recommend it.
dean l.
I like the size and the power it packs. Jumped my car with ease.
zane
This jump pack is excellent. Easy to use with a nice case. Has excellent jumping capacity. On a single charge have been able to jump start a 6L V8 3 times and a 3.6L V6 that uses a 900amp CCA battery and only used one bar of the pack. Really good jumping power and would recommend.
BRIAN S.
bought at very good sale price after watching some review videos, shipping was fast ,received and charged but have not used as of yet, seems well made, hoping it works as advertised whenever need comes up to use it
Dan P.
Very powerful little unit, can't wait to get my hands on a gt4000 to try the pre-heat for the canadian winters!
Michael S.
Works exactly as wanted. Unlike other products, I was able to start a car with a completely dead battery. First try. No waiting around for the car battery to charge up a bit. It could not be better.
Amy C.
Awesome. Compact and powerful. Easy to use (for the non car folks).
We successfully started a 1999 Jeep that had been sitting in our driveway since February 2020.
Lindsay L.
i have used this to boost everything from a ford escape to a skidsteer so far its worked perfectly
ian L.
Fonctionne parfaitement. 2 survoltage sans problèmes. Semble bien construit.
Steve K.
Great,love the product.2nd one purchased.good work gooloo !!
Brian G.
Big power from a small unit. Works amazing !!!
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.
Ora O.
Started a VW diesel car with a bad battery just fine.
William C.
I purposely drained my car battery down to about 9 volts to the point the ignition didn't even click.
I hooked this up, according to instructions (important) and my 4.2 liter engine fired up as if I had a brand new battery connected!
Truly amazing!
People here have complained about it not having a wall wort (wall charger) and I have to say that by now, most people have them for their phones, tablets and a slew of other things common in most every house. I think a lot of new phones don't come with them any more. How many does one need? I think I probably have a dozen of them by now.
I would suggest however, that if you need to purchase one, get a name brand one of good reputation! Having good circuitry there assures safety and reliability.
The GooLoo GP4000 is rated tops on line. Even above similar jump boxes costing more than twice as much.
I now have peace of mind in my trunk!
Marwand N.
The best booster
Chaoxian Z.
good jump starter
ray l.
happy with product and digital order service. recommend to anyone.
Laura W.
This baby worked like a champ. Easy to use and even has USB ports for other electronics and booster for an extra dead battery.
Half-Dane
Was skeptical because
Of its small size, started my truck right up��.great to have in your car
Dario B.
Received the jump starter but have not used it yet.
Sonja H.
Lots of Christmas shopping done!! I hope everyone loves them!
Daniel S.
Fast delivery .. Nice and compact ..
Fully charged but thankfully haven’t had to use it yet
mike m.
Great delivery time. I purchased a GP 4000 jump. Very compact and works as it should. They even had a promo where you get a free tire inflator. I received the GT 160. It even is not readable works great but not really usable because as soon as you take it into the light the screen is not visible.
I tried contacting GOOLOO about. this issue emails etc but have yet to get a response. The inflator can not be used in the light which is very disappointing.
Kevin C.
So far starts cars every time. Used it once on my car and twice helping people who needed a jump. Fired them up right away. Starting a car doesn't kill the charge in the battery pack. It could probably do a number of starts before getting too weak to do another. Being able to charge other devices too is convenient. I use it to charge my tablet and phone more than anything else. Good to have around. I recommend it.
Boyd M.
Very decent company to deal with , they actually care that you’re happy with their product and are there for support should you need it .
Steve P.
It works as advertised so far tried on my sled and my 6.5 turbo diesel truck and it seems to work no problem I was impressed
Duane D.
I used it for the first time today. I am very happy with my purchase.
Duane D.
I used it for the first time today. I am very happy with my purchase.
Mickey R.
Used my friends unit and really worked great. Had to get one of my own.
Mickey R.
Used my friends unit and really worked great. Had to get one of my own.
