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GOOLOO

GOOLOO GT4000S Jump Starter 4000 Amp Car Starter 100W Two-Way Fast-Charging Portable Car Battery Charger Booster Pack for 10L Diesel and 12L Gas Engines, SuperSafe Lithium Jump Box for 12V Vehicles

    • Based on 683 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, May 28
Order within 15 hours and 6 minutes
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Color: Red


Features

  • ONE & ONLY 100W Fast-Charging Car Battery Jump Starter: Only 1.2 hours can fully charge the jump box from 0% to 100%. 5 minutes of charging time are enough to start a car(100W car charger is included in the package). A single full charge can achieve 60 times jumpstart. You can also use your own fast-charging charger to charge this jump starter through the type-c port.
  • Up to100W Charging Speed for MacBook & Other Laptops: Charge it whenever and wherever as fast as the original adaptor for your laptops(Type-C port only).
  • Powerful yet Compact Portable Jump Starter: 4000A peak cranking power enables Gooloo GT4000S to start almost all 12 volts dead vehicle engines up to 12.0L gasoline or 10.0L diesel in just a few seconds. Compared with a traditional car jumper or jumper cables kit, it's really powerful enough but more compact.Perfectly compatible with RVs, pickup truck , motorcycle, SUV, tractor, boat, etc.
  • Easier & Safer to Jump-start: This portable lithium car battery jump starter pack has a 3.2-inch informative LED screen clearly to show product status , so you can know when to start the car intuitively. Built-in 10 kinds of protection technology to free your mind of misgivings of misoperation and sparks.
  • 24 Months Stand-by Time: Regular charging is not necessary as long as you own the GT4000S battery jump starter. The built-in 10 protection technologies also greatly extend the service life of the product.
  • More than a Battery Jump Starter: Not only a jump starter battery pack,the GOOLOO GT4000S also features as a portable battery bank with three USB Ports and a 400 lumen flashlight with 3 modes(SOS, SPOTLIGHT, STROBE).Plus a 15 volt 10 Amps port for powering any 15V or 12V DC devices, like tire inflators, inverters, and more.
  • In The Box: Gooloo 4000A Portable Car jump starter battery pack GT4000S, Heavy Duty Jumper Cables, SC 100W Car Charger, USB to Type-C Cable, Type-C to Type-C Cable, Cigarette Lighter Adapter, Storage Bag, User Manual.

Brand: GOOLOO


Product Dimensions: 9.05"D x 3.93"W x 2.12"H


Item Weight: 2.3 Pounds


Amperage: 4000 Amps


Peak Output Current: 4000 Amps


Brand: ‎GOOLOO


Product Dimensions: ‎9.05"D x 3.93"W x 2.12"H


Item Weight: ‎2.3 Pounds


Amperage: ‎4000 Amps


Peak Output Current: ‎4000 Amps


Manufacturer: ‎GOOLOO


Model: ‎4000A Car Battery Jump Starter


Item Weight: ‎2.31 pounds


Item model number: ‎GT4000S


Batteries: ‎1 Lithium Polymer batteries required. (included)


Manufacturer Part Number: ‎GT4000S


Bulb Type: ‎LED(Stable/Strobe/SOS)


Special Features: ‎√Jump start vehicles up to 12L Gas/10L Diesel engines,including Hybrid cars., √400 lumen LED flashlight with 3 modes(SOS, SPOTLIGHT, STROBE)., √3.2-inch screen displays real-time battery status., √4000 Amps peak current cranking power., √Powerful & handy portable jump starter for car battery., √24 Months standby time., √Battery Life 1000+ Cycles., √A 15 volt 10A port for powering any 15V or 12V DC devices, such asw air compressor, car fridge, car vacuum cleaner, and more., √100W max two-way super-fast charging supported. Fully charge in about 1.2 hours., √IP65 water-resistant & 94V0 flame retardant, √Large battery capacity.


Date First Available: November 20, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 28

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.

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Top Amazon Reviews

    • Updated review: This is a lifesaver!
Color: Red
Alright, so update on my previous review: This is an essential for me, especially for camping. I've had to jump my car (2014 town and country) about a dozen times since purchasing this due to a battery fault. This thing is the definition of overkill. Each jump takes somewhere between 10 and 15% of the battery life, and each jump, the van acts like it has a brand new battery, which is perfect. Biggest thing i've jumped so far is a GMC Yukon, which had zero issues. Outside of jumping cars, this is the champion of camping power. Its capable of charging all your mobile devices, rechargeable camping gear, even a laptop, without being the size of a lunchbox, and can recharge anywhere your phone can. Not to mention it can use any accessory your car's cigarette lighter can, and has a light. The only downside is this doesn't have any AC power, but that was never the point. Given the choice between this and a 150w inverter or a jackery (with a built-in inverter) and a car jumper, I'm probably going to pick this every time. What i've noticed since purchasing this: + Perfect for camping: This can charge a phone, tablet, battery fan/light, other power packs, even a USB-C charge capable laptop without a hassle. + Charges on a USB-C phone charger. 16w USB-C won't charge your laptop, but it will charge this, which charges your laptop. + Jumps stuff others won't touch: When "smarter" jumpers detect a bad battery and refuse to jump, this will jump your car, without hassle. +/- Light is designed for local light or signaling, not as a flashlight. Great for keeping people from running into you, not so ideal if you need to see someone at a distance. +/- This will fast-charge phones, but is not compatible with 45w super fast charge 2 some phones are capable of. - Clamps are chunky. Not a big deal, but these do get in the way on certain vehicles where the battery is in an awkward spot. TL;DR at the top: Huge battery, extremely flexible power options (is currently charging the laptop i'm writing this on), easily starts average cars and acts as a massive power bank for whatever you want to do. Just a little bulky but well worth it! Detailed review: About two years ago, i received a NOCO GB40. Supposedly rated to 1000 amps, it time and time again failed to start the 3.6l V6 engine in my Town and Country, my roommate's Buick Rendezvous, really anything I ran across that needed a jump. After two separate incidents in a week where the GB40 failed to start cars under ideal circumstances (full charge, warm engines, no mechanical faults), it was retired, and the GT4000 put in its place. Out of the box, the GT4000 is chunky, at 9x4x2.25", its larger than your average brick. Throw in the accessory kit (jumper leads, USB-C to C and USB C to A cables, PD100 charge cable and a cigarette lighter adapter) and you'll have a fun time getting this into your glovebox. But then again, the GT4000 can probably jump much larger things than your SUV. The packaging is superb, and nothing in the box was really susceptible to shaking in the first place, but I'm fairly confident the box would have kept everything secure regardless. The User Interface is simple, there's 2 buttons, power and boost. Power turns on the device, and when held, turns on a surprisingly bright flash...light? The very bright LED strip is obscured by a milky plastic cover, so it works well as a flood light, but not so much as a long throw flashlight. You can change the mode or turn off by clicking the power button repeatedly. Once on, connect your power leads to the port on the side of the charger, plug in your battery, and click "boost" if the backlit LCD screen doesn't say "Ready". The included leads are plenty long for the majority of batteries out there. I didn't feel like waiting to drain my battery to test this, so I disconnected the battery from my Town and Country and started the 3.6l V6 directly off this. No shock, but there was no hesitation, no difference from using the standard battery, successful start. Obviously this is a bit like using a sledgehammer to hit a nail, but it works! Outside of its duties as a car jumper, the GT4000 has a plethora of charging ports. First is a USB-C, which can deliver PD100 power to charge a USB-C PD compatible laptop, or 18w fast charge for your phone. This is also how you charge your GT4000. Next to this are two USB-A ports, one feeds 5,9,or 12 volts like Samsung's rapid chargers, the other feeds 2.4a at 12v. There is also a port for a cigarette lighter port, so you can run a compact compressor or an inverter. Thanks to its 99.2wh rating, this can easily double as a power pack for camping or long-haul flights on budget carriers, as it will charge most USB-C chargeable laptops once, or run your phone for days at a time. And since it is under 100w, this pack does not have any specific regulations with the TSA outside of needing to be carried in a carry-on bag. (note, you may wish to leave the jumper cables at home if you take this on an airplane, no clue how the TSA will react. I'm not responsible for any TSA-confiscated items or enhanced screening protocols). The LCD display is extremely easy to read, and gives you a lot of data regarding your charger, including charge percent, status, charging rate (in watts, which is very useful for testing the power output of USB ports), and more. If you manage to sufficiently discharge the battery (below 20%), the display will flash, making it very clear to recharge. It sounds like this unit has an internal warmer to keep its battery at an optimal temperature for discharge, i've yet to need to use it, and will update the review once a need arises. I also cannot speak to the longevity of the device, as I haven't had time to cycle it hundreds of times, but I'll update this review as that becomes relevant. Overall, this well exceeds the needs I have for the battery, acting as a car jumper, laptop and phone charger, and USB tester. If you're looking for something you know will start your car whenever and wherever you manage to find yourself, this is it. The only negative is the size, but if you can find a spot in your car to put a couple bricks that you don't need to think about, then it shouldn't be a concern, and is well worth the extra space for the added capabilities over similar, smaller products. P.S. the jumper plug for this are the same as the Noco GP40, but reversed, so you can't use the leads interchangeably. ... show more
Reviewed in the United States on March 9, 2022 by Brad Goodall
    • Powerful, convenient, portable, what more can you want?
Color: Red
Came to the door slightly charged, let it charge till full and tossed it in the back seat of my truck. With two days it was put to the test. A friend at work found himself at the end of the shift with a dead battery in his Tahoe. I also keep a part of jumper cables in my truck which we tried first, however his batter was very dead. Lights would not even come on. We tried with the jumper cables to no avail, too dead. I then remembered this was also in the back seat and offered it up to try. With the jumper reading ready we tried again, and could only get his starter to click. I this the boost button and suddenly his headlights came on and this truck turned over like it was running a fresh battery. It was quite impressive. He ended up asking for the link to purchase one for himself he was so impressed. I feel much more secure knowing I have this with me just in case and recommend to anyone interested to add this to their collection for peace of mind. ... show more
Reviewed in the United States on November 17, 2023 by Juan Gonzalez
    • Super effective
Color: Red
Compared to the lead acid jump boxes with all the heft, this thing feels like a toy. It isn’t. A week out of the gate, by pal called with a dead dead battery (the two deads were on purpose). He has three vehicles and he hadn’t driven his pickup in months. Blasted over there, plugged her in and it didn’t work (never consulted the manual! Do that!!). Then realized for the super dead, you hit the “boost” button. I hit the button and everything lit up inside his truck instantly. The truck started immediately with no hesitation. The ordeal used about 15-20% of the jump box’s charge (it has a meter, which is handy). Impressed. Took it camping on a work trip and everyone was using it to charge their phones. All day for days and drew the battery down and I didn’t notice. Needed it, but the battery was at 9%. Note, it will not work at 9% charge on a full sized f-150. Be sure to make sure you charge it up if you use it for other things like charging phones. Significant other bought one for his parents and they used it to started their 56-HP tractor in a show storm on the Tug Hill. Started right up. Pick up the case too. It’s pretty slick and keeps everything together. If not, the box it comes in is also very sturdy. I kept it in there for five months before buying the case. This item is a good purchase for that added security, esp if you’re not going to be around other vehicles. Way easier to use than another vehicle and cables for a jump. ... show more
Reviewed in the United States on January 28, 2023 by Angie
    • Works Great!!!
Color: Yellow
Ordered this as a just-in-case item. A few years ago I had not completely closed my glove box and the next morning my car was dead outside a rural motel with no one around to pay for a jump. Finally, walked to a church and found a nice fellow to jump my car and get me on my way. wasted a lot of time and had to bother someone to get me on the road. Yesterday my son left his interior lights on in his Diesel pick-up. It was below zero and I went out to help him. Was going to drag out the jumper cable and realized my wife took my car and that the jumper was in her car. Got it out read the directions and BAM!! this thing fired up the truck without hesitation. The battery was 100% flat and it was below zero out. Just had to hit boost and off to the races. Took less than 5 minutes. took the box down from 99% to 97%. Glad we had it!! My son just ordered one to keep in his truck. ... show more
Reviewed in the United States on December 22, 2023 by Jim
    • It does what it supposed to do, reliably.
Color: Red
This does exactly what it is intended to do and does it surprisingly well. It also has a few extra features that you wouldn’t expect at this price point. It was able to jump start a car with a VERY dead battery that one of its competitors was unable to budge. Excellent product. I trust it and I’ve bought several for my family to ensure they are always able to get on the road or help someone in need. ... show more
Reviewed in the United States on December 19, 2023 by Trevyn
    • nice compact unit !! Love it !!!
Color: Red
good price, quality, and easy to use !!!
Reviewed in the United States on December 18, 2023 by JOSEPH NOWARAH

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