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Antigravity Batteries

Antigravity Batteries: 4650A Jump Starter – 12V Heavy Duty Lithium Battery Booster Pack, Portable Jump Box, for up to 10.0L Gas & 8.0L Diesel Engines

  • Based on 219 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Oct 13
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Features

  • Heavy-Duty Jump Starting Power 4650A peak lithium jump starter capable of starting gas engines up to 10.0L and diesel engines up to 8.0L, including trucks and SUVs.
  • 12V Lithium Battery Booster Designed for cars, trucks, motorcycles, ATVs, RVs, boats, and more.
  • 24,000mAh High Capacity Provides strong starting power with extended standby performance.
  • USB-C PD 100W Fast Charging Supports ultra-fast recharging with compatible USB-C PD chargers.
  • Compact & Portable Design Heavy-duty performance without the bulk of traditional jump packs.

Description

Introducing the Antigravity Micro-Start XP-20-HD, the next-generation battery jump-starter designed to meet the demands of modern drivers and adventurers. This compact yet powerful device is engineered to start vehicles with diesel engines up to 8 liters and gas engines up to 10 liters, ensuring you're never stranded due to a dead battery. Never let low battery slow you down. With up to 100W ultra-fast charging, this portable power jumper starter keeps all your essential tech devices running seamlessly—from laptops to smartphones and beyond. Perfect for on-the-go professionals, tech enthusiasts, and anyone who values uninterrupted performance. Compact, portable, and designed for efficiency, it’s your ultimate solution for reliable charging anytime, anywhere. Stay informed at a glance with the large, easy-to-read digital display that shows vital metrics like power level, charging status, and performance indicators. Whether you're in a rush or troubleshooting, our car starter jump box display keeps you in the know. No time to waste? Enjoy ultra-fast recharging capabilities that get you powered up in record time. Perfect for busy lifestyles or emergencies, Antigravity Batteries Micro-Start XP-20-HD ensures your device is always ready when you need it most. Your safety is our priority. The advanced built-in protection system guards against overcharging, overheating, and short circuits, offering peace of mind while keeping your devices safe and secure. Light up the night with the powerful 240-lumen LED flashlight. Whether you're camping, dealing with a power outage, or navigating in the dark, this portable led light ensures you never miss a step.

Brand: Antigravity Batteries


Battery Cell Composition: Lithium Ion


Voltage: 12 volts


Product Dimensions: 1.9"D x 4"W x 9.4"H


Vehicle Service Type: ATV, Bus, Lawn Mower, Motorcycle, Passenger Car, RV, Tractor, Truck, Watercraft


Battery Type: Lithium Ion


Voltage: 12 volts


Compatible with Vehicle Type: ATV, Bus, Lawn Mower, Motorcycle, Passenger Car, RV, Tractor, Truck, Watercraft


Battery Capacity: 24000 milliamp_hours


Amperage: 930 A


Peak Output Current: 4650 A


Automotive Fit Type: Universal Fit


Item Dimensions D x W x H: 1.9"D x 4"W x 9.4"H


Item Weight: 2.1 pounds


Specification Met: UL


Brand Name: Antigravity Batteries


Manufacturer Part Number: AG-XP-20-HD


Manufacturer: Antigravity Batteries


UPC: 711811704628


Global Trade Identification Number: 28


Number of Items: 1


Included Components: Carrying case, Heavy-duty jumper cables, Jump starter unit, USB-C charging cable


Model Number: AG-XP-20-HD


Manufacturer Warranty Description: 2 Year Warranty


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 13

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Very easy to use ! Essential.
When I needed a jump recently, the person who helped me out had an older version of this kit. I was so impressed, I immediately bought this newer bigger version. Very thankful I did, because my car battery died again, this time at 10 o’clock at night in a Boston parking lot. This new starter worked awesome and saved me at least an hour dealing with AAA. worth every penny. It is super easy to use and pretty portable. It’s about twice the size of the older version but it also has a lot more capacity. It needs periodic charging, so I just put a note in my calendar to do it every three months. I clearly need a new car battery, but until then this is essential. It’s probably also pretty useful for camping trips and power outages. Definitely read the entire user manual (which, bonus points, is written in easy to read English). There were lots of warnings about what not to do. Super fan. ... show more
Reviewed in the United States on January 18, 2025 by D. Matthews
    • Powerful
This is my second one. First one lasted 11+ years. Then the batteries started to puff up (get pregnant) and split the case a part. This leads to increased fire risk when charging. How ever for 11 years it was bulletproof. I jumped started every thing with it form riding lawnmower, atv, snowmobile, cars, trucks and even a semi once. New one as changed slightly but performing like the old one. ... show more
Reviewed in the United States on February 10, 2026 by Lance Robinette
    • Great insurance.
Batteries don't give you any warning (like slow starting) anymore. Even if you have great road service, a half hour wait in the cold stinks! This has bailed me out a few times. It's even started my lawn tractor. It maintains charge really well so far. I've reduced my times when I check its charge to about quarterly and even then, it's always tested at 100%. If I'm going to leave the vehicle for an extended period, I still "top off" the charge before I leave. ... show more
Reviewed in the United States on November 15, 2025 by Matthew K.
    • Impressive.
This thing is sick. It’s very small and light and looks cool and has great features comes with all the charging cables but all that aside it performs crazy good. I jump started my moms 09 c350 benz (H7 group size battery) that had been dead 2 months. Opened the box, jumper came charged at 76%, I connected to the battery and nothing happened at first (battery super dead) which means I got to try the reset feature which is the button next to power. Pressed it once, heard the car chirp to life, started her right up. 5 mins and done. Super easy to use, 2 buttons total on it. Very much worth the money and a huge upgrade from my old huge “briefcase” jump starter. ... show more
Reviewed in the United States on October 27, 2023 by D. How
    • Died after 2 years, no warranty support
Review Image by J. Porter
Got this because it seemed like one of the best jump starters. It died after about 2 years. Was charged regularly, never used, and was kept in a car that spends most of its time in a cool garage. One day I took it out to top off the charge and the screen would only flash. Reached out the company and they confirmed it was dead but had no offer of replacement. My cheap jumpstarter that I gave away when I got this one lasted much longer. Really disappointed in this quality of this product and will not buy another Antigravity Batteries product again as they don't stand by their products. Something like this should last more than a couple years. ... show more
Reviewed in the United States on September 21, 2026 by J. Porter
    • YOU NEED THIS
Absolutely essential. It is small, compact, powerful, easy to charge and easy to use. I’d give it 20 stars!
Reviewed in the United States on March 18, 2026 by Darryl Meadows
    • Should have the Wall Charger included
Review Image by Earl
Review Image by Earl
Review Image by Earl
Update: heard from customer support and they said that you can use a USB C wall phone charger! I used my USB C charger from my Samsung S25 Ultra. Took longer you top off battery from 77% when i got it to 100% about 2.5 hrs but it works! --------- I see what others say that there's no specifications on using anything other then the supplied lighter socket to USB C input port (can't see if i can use a standard USB C phone charger)? They really for the price should include the optional wall charger or at least list the input required to use another usb C charger. You can't use the wall charger from the older models which had a barrel style plug. Older model the case was much nicer and practical to get to the accessories ... show more
Reviewed in the United States on December 31, 2025 by Earl
    • 👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼me encanto lo recomiendo
Excellente. Es una buena compra lo recomiendo. Ledoy un100 👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼
Reviewed in the United States on September 1, 2026 by Muy bien

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