









🚀 Power up your ride & your life—never get stranded again!
The GREEN KEEPER GK-J1204 Portable Car Battery Jump Starter delivers a robust 3000A peak current to jump-start gas and diesel engines up to 8.0L. Beyond jump-starting, it doubles as a PD65W fast-charging power bank and features a multi-mode emergency LED light. Designed with 10 built-in safety protections and an ergonomic compact form, it’s the ultimate all-in-one roadside essential for professionals who demand reliability and versatility on the go.













| ASIN | B0CZVB94CM |
| Amperage | 3000 Amps |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Best Sellers Rank | 13,349 in Automotive ( See Top 100 in Automotive ) 121 in Car Battery Jump Starters |
| Brand | GREEN KEEPER |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,769) |
| Date First Available | 7 April 2024 |
| Item Weight | 830 g |
| Item model number | GK-J1204 |
| Manufacturer | Dong guan Carosstech Co.,Ltd |
| Manufacturer part number | GK-J1204 |
| Model | GK-J1204 |
| Product Dimensions | 21.08 x 15.24 x 8.13 cm; 830 g |
G**S
Works really well. Excellent piece of kit and great value.
Just had a chance to use it for the first time this morning, on someone else's car. It was very simple to connect up and the car with the gutless battery started first time. Very impressed and pleased that I had it. I bought this neat little device to carry around in my EV just in case the 12v battery on that failed (which it never has) and also so that I could jump start other people's cars (I always carried jump leads in the past for this reason, but the EV's 12v battery can't be used with those). I've yet to try starting a car with a completely discharged battery but that seemed like a pretty important feature when I was considering which jump starter to buy. Pros: Simple to use, plenty of power capacity, seems to be solidly built, packs into a tidy little case, has potentially useful additional features (emergency light, powering coolbox, charging phone etc), holds its charge for a very long time when not in use and is very good value for money. Cons: None
H**D
Multi function and great!
Really good bit of kit! Cheap for me in sales but I would pay full price it’s worth it! Fits under my seat, charges in couple hours, seems to last but I don’t need to use it only for emergencies, torch light is handy! All rounder works. Easy to use.
E**D
Brilliant Jump Starter That Works 100% !!
I Have Purchased 3 Other Jump Starters over The Last Month, And had to Return them for A Refund because they Hardly turned the engine over, and Didn't Work ! This Particular One is 100% Brilliant and Started My Car With A Flat Battery Instantly, and used Hardly Any Power ! Proven Quality, And Would Highly Recommend !!
A**R
Worked as jump start for car
Item arrived with about half a charge, after fully charging it used it on a 1.8L Ford Focus with dead battery. Connected clamps and tried to start engine. For a second it didn't sound it would work but then it fired up. After disconnecting still showed full power. The battery unit does feel plasticy but still seems sturdy. The clamps feel heavy duty with a strong spring action. The carry case is semi hard, not blow moulded but stiffened material. Zip doesn't look the best. Large bottom section for battery with elasticated strap to hold it in place. Zipped netted area in top which holds clamps and other accessories. After single restart, item worked as required. Haven't tried compressor function. Will update as and when it gets used in future
M**9
Does the job
Perfect item, does what it is needed for but went from 100% charge to 64% on one jump start.
A**R
Mr muscle boosts
Great unit, powerful, simple does what it says.
I**.
Worth Every Penny
I recently got my hands on the Portable Car Battery Jump Starter, and wow, what a lifesaver! This little powerhouse packs a serious punch with 3000A, making it suitable for car engines up to 8.0L, whether gas or diesel. If you’ve ever found yourself stranded with a dead battery, you know how stressful that can be. This jump starter is like having a trusty friend in your trunk, ready to help you out in a pinch. One of the standout features is its ultrasafe design. The jumper clamps are super easy to use, and I felt confident connecting them, knowing that the built-in safety features would prevent any mishaps. There’s nothing worse than trying to jump a car and worrying about sparks flying everywhere! And let’s talk about the LED lights. They’re a game changer, especially during those late-night emergencies. I can’t tell you how comforting it is to have a bright light when you’re working on your car in the dark. It really adds to the peace of mind that comes with this jump starter. But wait, there’s more! It also doubles as a power bank, and if you’re like me, you’re always on the lookout for a quick charge for your devices. The PD65W quick charge capability means I can power up my phone and other gadgets in no time, which is a huge bonus. Overall, I can confidently say that this Portable Car Battery Jump Starter is worth every penny. It’s compact, user-friendly, and truly a must-have for anyone who spends time on the road. Whether you’re commuting, road-tripping, or just running errands, you’ll be glad to have it by your side. Trust me, it’s a purchase you won’t regret!
E**S
Good kit for price
1st jump start successful - completely dead 2.2L diesel camper, not evenights on the dash, 1st turn. 22% battery capacity used. Good kit for the price (paid 40 pounds) . Will see how long this last. Will update
B**4
Sprytne urządzenie, warto mieć zwłaszcza jak się zostawia auto na lotnisku na miesiąc. ;)
ラ**ズ
初めてこの手を使ったのですが バッテリー上がりも簡単に解消されるし 使いやすさもあって感動でした。
J**O
Hola para quien le interese He cargado el arrancador a tope y a continuacion he hecho las pruebas siguientes. Arranque de un vehiculo gasolina 1600cc 100cv le he quitado la bateria por que estaba nueva y he conectado el arrancador realizando 2 arranques y ha arrancado perfectamente las 2 veces utilizando el arranque forzado con 0 consumo de bateria del arrancador. A continuacion he inflado las 4 ruedas estaban sobre 2,1 bar y las he inflado a 2,3 bares el inflado ha sido rapido como 30 o 40 segundos por rueda, sin que haya ningun consumo de bateria del arrancador osea que sigue cargado al 100%. Se que es una prueba muy libiana pero a funcionado perfectamente. Escribo este comentario para quien este buscado uno que sepa como funciona, puesto que yo hasta que me decidi estube buscando muchos y leyendo muchas reseñas. Espero que a alguien le sirva mi comentario.
F**.
Livré dans une sacoche semi rigide avec rangements pour chaque accessoires, le top !
J**E
Have used it 3-4 times now to help people out. It works better than I expected! It might be one of the best items I bought recently. Since its battery powered I have been able to help two people in a situation where regular starter cables wouldn't reach. As of the battery, I have just charged it for the first time, and it was on 3/4 bars. And that was after starting those cars previously mentioned. Highly recommended. Only drawback is the plastic casing which feels a bit cheap.
Trustpilot
5 days ago
1 month ago