Search  for anything...
AG AUTOGEN Innovative Auto Genius

AUTOGEN 4000A Car Battery Jump Starter Lithium Jump Box (10.0L Gas and 10.0L Diesel Engine), Auto Battery Booster Pack, Portable Car Battery Charger Jump Pack with 12V DC Output and EVA Case

    • Based on 1,736 reviews
Condition: New
Checking for product changes
$159.95 Why this price?

Buy Now, Pay Later

As low as $26.66 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: 20 left in stock
Fulfilled by Amazon
Arrives Thursday, May 9
Order within 22 hours and 37 minutes
Available payment plans shown during checkout

Size: 4000A


Features

  • Unbeatable Power - AUTOGEN 4000A is designed for heavy duty, it delivers 4000 Amp + to ensure the successful jump start of your 12V vehicles even in cold winter! Up to 10.0L gas & diesel engines. Boost start a dead car battery with only one simple press.
  • Safety First - Thanks to its large capacity battery, and patented mistake proof connection, the battery holds a charge longer and is less to be drained out or damaged. Professional-grade copper clamps are 1/2 larger, 100% copper cables all designed for high power output delivery in no time.
  • Built-in 12V DC Outlet - It works as a compact portable 12V DC power bank, battery charger for your automotive products. No extra cable needed
  • Quick Charge 3.0 & Micro USB ports - 75% faster when charging smartphones or tablets; and save 1/2 time for the recharge
  • 12-month warranty, 30-day money back and 24/7 friendly customer service.

Brand: AUTOGEN


Battery Cell Composition: Lithium Ion


Voltage: 12 Volts


Vehicle Service Type: Passenger Car, Truck


Battery Capacity: 27000 Milliamp Hours


Brand: ‎AUTOGEN


Battery Cell Composition: ‎Lithium Ion


Voltage: ‎12 Volts


Vehicle Service Type: ‎Passenger Car, Truck


Battery Capacity: ‎27000 Milliamp Hours


Amperage: ‎4000 Amps


Peak Output Current: ‎4000 Amps


Manufacturer: ‎AUTOGEN


Item Weight: ‎4.05 pounds


Package Dimensions: ‎10.39 x 7.05 x 5.08 inches


Country of Origin: ‎China


Batteries: ‎1 Lithium Polymer batteries required. (included)


Manufacturer Part Number: ‎MJS111-4K


Date First Available: July 22, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 9

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.

  • Klarna Financing
  • Klarna Pay in 4
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Stays charged for a LONG time and doesn't overcharge thanks to the SMART chip in it
Size: 4500A
This is not the first one of these that I bought. I have both the 4000A and 3000A models that Autogen makes. They are both identical looking and the differences are internal where you can obviously guess the 4000A has a little larger capacity battery and can also provide 1000 more Amps if needed. A couple really nice features about these is that it has 2 Quick Charge 3.0 USB ports so it will charge your cell phone, or any other Quick Charge capable device in a fraction of the time that 2.5A or even the PowerIQ chargers. It also is able to RECEIVE charging from a Quick Charge 3.0 (QC 3.0) charger so it can charge a lot faster itself. It has a built-in smart charge feature which is not like a lot of other devices. Because this device has a lot of smart technology in it, when you plug in a USB cord to charge this device, it actually has a built-in battery monitor that checks the battery level and if it needs to be charged, it will then charge the battery. (which you will see the LED battery level indicators flashing when it's charging) Once the battery is completely charged, instead of the charger still supplying current to the battery it will turn off the charger. (Having the type of batteries that are in most newer devices constantly on a charger will actually lessen the life of your battery b/c every time the battery goes down even a little bit, and recharges, it decreases the remaining life of the battery almost as much as if you had run the battery down and recharged it. This is why if you read the owners manual on a lot of devices, they will tell you that once the battery is at 100% capacity it is best to disconnect it from the charger and not leave it on the charger) This same feature is also on the USB ports for charging other devices so if you plug in your phone or another device, once it's done charging, this power unit will turn off the power to the USB ports so it's not draining its battery, and it's not overcharging the battery of the device you are charging. Another nice feature this has is the built-in 12v power outlet (cigarette ligher power port) where a lot of the compact jumpboxes like this one have a 12v power outlet attachment that allows you to disconnect the 12v power outlet from the device. The problem NOT having it built-in is that for one, you can lose it. Also on pretty much every device I have seen where the 12v outlet isn't built-in, it uses the same connection that the jumper cables do, so it's an either/or situation. It's not a huge deal but if you have something like a work light or other 12v device you're trying to use and you need to jumpstart a car, UTV, ATV, or other vehicle, you can't have the work light until you're done jump starting the vehicle and swap out the jumper cables with the 12v outlet again. Like I said, not a huge deal, but murphy's law, it will be at night, so you need the work light, and without it you can't see the where the jumper cables/12v outlet adapter needs to plug in. Plus, all of the devices I have looked at where the 12v outlet is NOT built-in, the outlet can only handle between 6 - 8 Amps where this one supply 10 Amps of 12v power. This may not sound like a lot, but it's the difference of 200 - 400 watts of output, so if you have something you want to plug into it and has a 1200 watt output, this jump box can handle it, where another one that can only give 6 Amps of power would not. I have used my jump box quite a few times. Usually I'll see someone in a parking lot when I'm coming out of a store, and they have that international sign of distress (an open car hood) There have been a couple of times when it has been a diesel truck and because a diesel has a lot more compression, the starter for it takes a lot more power than a regular gasoline powered car. Normally, if you have a gasoline powered car, and you are needing to jump start a diesel, you will usually connect the jumper cables and let the gasoline powered car run for a few minutes (sometimes as much as 10 - 15 minutes) to let the diesel's battery charge up enough. But, with this, I hooked it up, he turned the key, and as soon as the engine was "Ready to start" (for those of you who are familiar with diesels, you know this is about 10 - 15 seconds if it's decently warm out) he cranked it over and this jump box gave enough power to start up the diesel like it had a brand new battery. Needless to say, I was really impressed. It wasn't a big rig diesel, but it also wasn't a small diesel. It was a 6.7 Litre, so it was decent sized and this had no problems cranking it over. I've gone months (probably around 5 - 6) between charging this, and I believe the highest amount of times I used it before charging it was around 8 or 9 times (mainly b/c I had to jump start a friend's car several days before he was able to find he had an intermittent electrical short that only sometimes drained his battery at night (turned out to be a worn wire that would shake enough every now and then and touch a piece of the frame and cause a short and drain the battery overnight, if you were wondering :-) ) Even using it that many times before charging it, it still had around 25% power left. All in all this is probably the best "small form" jump box that I have seen, which is why I bought the 2 (one 3000A, and one 4000A) Hopefully this review has given you a lot of good information, without being TOO long. I hope you are never in a situation where you need it, but if you are, I hope you took my word for it and bought this one or the 3000A model so the situation is more of an inconvenience than a crisis. :-D ... show more
Reviewed in the United States on July 25, 2020 by Nathan Driscoll
    • AMERICA FIRST
Size: 4000A
After watching the product video and user remarks, I feel that this device will fit the bill. I have not had to use it yet, but with 4 cars, I felt that I better carry a battery starter with me in case I'm stranded. Just last week one vehicle had a dead battery. Luckily it happened close to home. Someone drove me home to get cables to jump the truck where I replaced the battery. This occurred several time before over the years but always close to home (I must have Guardian Angel). In Arizona the battery dies right now, No Warning. Hopefully now I'm prepared. ... show more
Reviewed in the United States on August 16, 2023 by Heinz in Green Valley
    • Great customer support
Size: 4500A
Great product expect for the case were the zipper came off. Support came through and sent another case asap. As for the booster battery this is the 3rd one i purchased as they are excellent especially at jump starting a totally dead battery. No other booster i have heard of can do that. It holds it charge for a long period of time as well. I have used it on my diesel truck that you have to 1st use glow plugs ( high drain) takes it down 2 bars on the scale/meter then start the truck with no issues leaving me with 2 bars left. I have recommend this battery booster to friends and family and for those that bought it they was pleasantly Surprised at how easy it works and how long it lasts. suprised ... show more
Reviewed in the United States on June 22, 2023 by Sunwings
    • Works great!
Size: 4500A
No more having my kids try to help a friend with a dead battery and someone getting the jumper wires reversed! Cannot hurt a car that is not connected! And the jump pack warns is the polarity is reversed! Even jump started a Cummins twice without needing recharge, a week between each use. The case provided is kinda larger than it could/should be making storage in a small car kinda lame, but in no way a deal breaker! And you can jump your own car without another car! Win! ... show more
Reviewed in the United States on July 11, 2023 by jfin
    • Item as described
Size: 4500A
Item arrived on expected date and charged up fine, awaiting dead battery to test the jump pack
Reviewed in the United States on August 14, 2023 by Stngray
    • Works fine, just wish it didn't use the fragile and frustring microusb charge port
Size: 4000A
Charger works fine, easy to use, case fits well, etc. Glad they have a dedicated 'boost' button for those really dead batteries. Just wish they had replaced that horrible microusb port with the much improved, flexible, rugged, simple, usb-c.
Reviewed in the United States on July 22, 2023 by Jon M.
    • Not the best, but it works fine
Size: 4500A
I bought this to replace a fast charger we had. It doesn't work great. It is okay, but doesn't meet our needs.
Reviewed in the United States on July 18, 2023 by Sandra McGinty
    • Awesome
Size: 4500A
Great battery life and does everything from flash light to jump starting truck/car to chartering my phone and tablet....
Reviewed in the United States on August 3, 2023 by Jimboher

Can't find a product?

Find it on Amazon first, then paste the link below.