Search  for anything...

Antigravity ATX12-HD. Heavy Duty Lithium Motorcycle and Powersport Battery with Built in Jump Starting, 8Ah, ATV, Quad, UTV, Scooter, Lawn Mower, Generator Battery - Harley, Honda, Kawasaki

  • Based on 371 reviews
Condition: New
Checking for the best price...
$284.99 Why this price?

Buy Now, Pay Later


As low as $47.50 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – 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, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

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: In Stock.
Fulfilled by Amazon

Arrives Thursday, Jul 30
Order within 12 hours and 49 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Features

  • Introducing Built-In Jump Starting! - Never be stranded by a dead battery again with our "RE-START" Technology! No Jump Starter or Jumper Clamps needed! Simply press the RE-START Button on the Battery, start your vehicle and drive away! A Remote RE-START accessory is also available so you do not have to access the battery to trigger the RE-START feature.
  • Best in Class Lithium Perfomance - Our Lithium Batteries offer up to 200% larger Lithium Battery Packs inside than our competitors of the same Group Size! Providing dramatically more Cranking Amps and Amp Hours which results in many more Starts, better Cold Weather Starting, and leaves the Lead/Acid and Lithium competion in the dust. No false or inflated Cranking Amp claims, as some competitors claim. Used by the top Proffesionals and World Championship winning Race Teams.
  • Ultimate Protection Battery Management System BMS - The maximum in Lithium Battery Safety protection. Cell Balancing plus full protections from Over-Charge, Over-Discharge, Over Temperature, and much more for the most reliability and longest service life in the industry.
  • Accurate and Easy Fitment - Uses true "OEM" Case Sizes for a drop-in fit. Comes with a Quad 4 Terminal design for the most flexable, accurate and easy battery fitment. Fits both right and left hand Polarity connections, simply turn the battery 180 degrees to change Terminal Polarity orientation. Uses True-fit OEM type Square Terminals for proper fitment in your vehicle.
  • Maximum Speed Charging - Offers the fastest charging available, and can be recharged in minutes .Offers 5x faster charging than Lead Acid batteries, and the fastest Lithium Charging available.

Description

Introducing the incredible Antigravity ATX12-HD-RS RE-START Lithium Motorcycle and Powersport Battery. This is the Heavy Duty version of our normal ATX12-RS. The intelligent batteries with built-in Jump Starting so you will never be stranded by a dead battery again! Leave your motorcycle lights on overnight? No worries. Simply press the RE-START Button on the Battery, start your vehicle and ride away! No need for a jump-starter or clamps. A Remote RE-START accessory is also available so you do not have to access the battery to trigger the RE-START feature. The Antigravity ATX12-HD-RS Battery features a 200% LARGER lithium-ion battery-pack inside than an average Lithium Battery of the same model size! Antigravity Batteries gives you up to fully DOUBLE the Amp Hours with 8 Amp Hours in our ATX12-HD! This equates to the most Cranking Power and Amp Hour Capacity available in this size battery and results in better cold-weather starting, more starts, longer storage times, and stronger motor turn-over! We don't falsely inflate our Cranking Amps; we simply give you a larger Lithium Battery inside for the best performance! Antigravity Lithium RE-START Batteries have an awesome no-hassle 4-Terminal Design that allows for the most versatile connection options on the market. No more looking for the correct Terminal locations in certain bikes or powersport vehicles. The ATX12-HD-RS can fit either left or right Positive Connections! Simply turn the battery 180 degrees and the terminal orientation is reversed! Also makes for easier connection of battery charging cables and extra accessories. The ATX12-HD-RS features an OEM drop-in fit with no spacers required, yet it is up to 70% lighter than a lead/acid battery. Our Lithium Battery has no liquids to spill or drain out, and it can be mounted in any orientation. Antigravity Batteries are incredibly shock- and vibration-resistant making them perfect for Racing and other applications requiring a durable battery. Antigravity RE-START Batteries offer a FULL Battery Management Protection System (BMS) inside the battery, as well as Top-of-the-line LiFePO4 UL Listed Lithium Cells for the safest operation and longest life possible. Up to and over twice the lifecycle of Lead/Acid batteries! Our on-board BMS has automatic cell balancing, and full protections from over-discharge, over-charge, over-temperature, over-voltage and more. This protects the battery from damage due to accidental over-discharge, and other factors. Lead/Acid cannot protect itself from these factors giving our battery a clear advantage for the longest life possible. Antigravity Lithium Batteries offer the most advanced motorcycle/powersport batteries available. They will save you from being stranded with their built-in jump starting, last years longer than Lead/Acid batteries, and also increase the starting performance of your vehicle. Antigravity Batteries are trusted and used by more Professionals and Championship winning Race Teams, and are compatible with all 12v systems for Powersports, Motorcycles, ATV, UTV, PWC, Scooters, Snowmobiles, Quads, 4 wheelers, Jet Skis, Waverunners, riding Lawn Mowers, Generators and more. We make batteries that fit all brands including: Aprilia, BMW, Buell, Ducati, Harley-Davidson, Indian, Victory, Triumph, KTM, Argo, Can-Am, Honda, Husqvarna, Kawasaki, Suzuki, Arctic Cat, BRP, Waverunner, Polaris, Vespa. This Lithium ATX12-HD-RS Battery replaces these Lead/Acid Batteries: BT12A-BS, BTX14-BS, BT14B-4, BTX16-BS, B16A-AB, BTX20CH-BS, ETX12, ETX14, ETX14L, GYZ16H, HYB16A-AB, YTX12, YT12A-BS, YTX12-BS, YTX14, YTX14-BS, YTX14H, YTZ14S, YTX14H-BS, YTX16-BS, YTX16-BS-1, YTX20CH, YTX20CH-BS, and KMX14-BS Antigravity Batteries started 14 years ago, creating lightweight lithium batteries for racers. Offering 70% weight savings over lead-acid, they pioneered innovations like lithium jump starters and wireless built-in jump-starting. Today, their powerful, compact batteries are trusted by both performance riders and everyday users, proving superior in weight, power, and reliability. Their focus remains on delivering cutting-edge battery technology. Visit the Store Built-in restart feature ensures your battery never leaves you stranded, even after full discharge. Engineered for maximum power output, perfect for extreme motorsport conditions and demanding applications. Visit the Store It began 14 years ago in a garage, hand-building lightweight lithium batteries for racers and performance riders, pioneering the use of lithium technology in motorsports. Our lithium batteries are 70% lighter and more powerful than traditional lead-acid options. We also created innovative products like lithium jump starters and built-in wireless auto jump-starting. We offer high-performance, lightweight, and reliable power solutions, improving performance and convenience for both racers and everyday riders. Premium materials and cutting-edge technology deliver reliable performance for all your power needs. The lightest, most compact battery solution for riders, offering unmatched power without the bulk. Visit the Store

Brand: Antigravity Batteries


Vehicle Service Type: ATV, Lawn Mower, Motorcycle, Personal Watercraft, Scooter, UTV


Voltage: 12.8 Volts


Battery Cell Composition: Lithium Ion


Item Weight: 3 Pounds


Product Dimensions: 3.4"D x 5.9"W x 5.2"H


Terminal: Quad Terminal


Manufacturer: Antigravity Batteries


UPC:


Global Trade Identification Number: 22


Compatible with Vehicle Type: ATV, Lawn Mower, Motorcycle, Personal Watercraft, Scooter, UTV


Voltage: 12.8 Volts


Terminal: Quad Terminal


Item Weight: 3 Pounds


Item Dimensions D x W x H: 3.4"D x 5.9"W x 5.2"H


Battery Type: Lithium Ion


Brand Name: Antigravity Batteries


Manufacturer Part Number: AG-ATX-12-HD-RS


Model Number: AG-ATX-12-HD-RS


Manufacturer: Antigravity Batteries


UPC: 639713373622


Global Trade Identification Number: 22


Item Type Name: Batteries


Manufacturer Warranty Description: Manufacturer


Included Components: Antigravity Batteries AG-ATX-12-HD-RS


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jul 30

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
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Nevere found on the road dead again! Nevere found on the road dead again!
These batteries by far are the best I've ever used. I'm not just running one antigravity battery but two!!! I have a 2020 Can Am Ryker 900 Ace currently powering my 4 speaker with amp setup, underglow kit, speaker rings, pod lights, hand guard lights, frunk light, under hood light, and grill guard lights. Oh and can't forget the car play!!! No problems whatsoever ever!!! They are extremely light weight and fit practically anywhere. As you can see i have one in my frunk.... best investment by far... Never have to worry about being on the side of the road dead. Recommend these batteries to anyone especially Ryker/Spyder riders! ... show more
Reviewed in the United States on October 12, 2025 Reviewed in the United States on October 12, 2025 by Tiffany Dean

  • Amazingly light and powerful
I’ve only put 100 miles on the battery, so I can’t speak to longevity. However, compared with my stock Yuasa battery which weighted 12.6 lbs and only had about 220 CCA’s, this new lithium ion battery seems amazingly. First it’s only 3 lbs, which means it’s almost 10 lbs lighter than my old lead-acid battery (major boon for off-road and low-speed riding on a motorcycle). Next, it’s got double the CCA’s so it shouldn’t have trouble starting the bike. And, given I’ve taken to carrying a lithium jump-starter on long trips or adventures off-road, I don’t need to do that now as the “reStart” feature should have me covered. Very excited to see if it performs as promised long-term. I had the same dimensions width/length dimensions as stock battery, but was about 1” shorter, so I used included foam to fit it. Only downside I see is the price. ... show more
Reviewed in the United States on May 21, 2022 by N. Solberg

  • WOW! Powerful and super light
I haven't used this type of battery in my vehicles ever. So far it is fantastic. The dual terminals on each side make it so much easier to hook up the accessories. It weighs alot less than I had expected, crazy light. I ride all year here in Utah. Last few days it has been 24°F when I leave for work. My motorcycle is outside under a carport, so it is that cold. No problems starting. I run a heated seat, grips and gloves when the temperature is under 35°F, I have no worries now. ... show more
Reviewed in the United States on December 3, 2024 by Zezhile Hansen

  • No shims or spacers
So far so good. Can't give a real accurate review till it's been a couple years. I like the features and power it has. Cranks my bike over right now. Just wish it came with some shims to customize the hight/width and spacers to bring the terminals to a flush mount like the stock Harley batteries. Other than that giving me a frustrating install cause of the placement design for a Pan America. For the price I should have a reliable product for years to come. They seem to have a good reputation. You get what you pay for and hope it's not a really expensive turd. ... show more
Reviewed in the United States on June 12, 2025 by Stephen Greer

  • Three years later, still perfect.
I bought this battery originally in October of 2022 for HD Pan America. It was having a lot of problems related to the battery going dead after it sat for week and needing to be on a battery tender all the time. After two NEW HD batteries and multiple shop visits, I bought this ATX12-HD battery. I haven't had a single issue since and I've never placed the bike on a battery tender again. Best battery I've used in 36 years of riding and wrenching. You just simply don't have to worry about a dead battery anymore. The physical size is a perfect match, so it installed easily, you will need a spacer for the terminals as the HD oem battery terminals were flush to the front and the ATX-12 HD are recessed back about 1/4". The CCA is nearly doubles over the OEM. It IS a bit expensive but considering that I went through two 150 dollar batteries in a year, I'm ok with the extra cost. ... show more
Reviewed in the United States on October 27, 2025 by B. D.

  • Definitely Worth Buying!!!
It's Awesome! I Purchased Mine Last June and Throughout The Entire Winter I Didn't Start My Bike. I Just Went Out Today and Tried To Start It! It Didn't Start, Which Is Understandable. I Pushed The Start Button On My Battery and The Bike Started Up With No Problem! I Would Definitely Recommend This Battery To Anyone! ... show more
Reviewed in the United States on March 22, 2026 by James Ellerbe

  • do not trust the Amazon and Zero Gravity fitment guides. Do actual measurements
Zero Gravity and Amazon both lest the ATX-12-HD as the battery for my 2022 Ktm Superduke R evo. its not even close to fitting and is 1/2 taller than the factory Yuasa battery. top retainer cant mount, and it holds my ECU . Had to order the ATX-10.....but of course amazon doesnt list the new ATX-10-HD......so 360 cranking amps it is. 2 days lost replacing my battery let alone having to return- please correct the fitment guide. ... show more
Reviewed in the United States on April 13, 2026 by EMS

  • High quality
High quality
Reviewed in the United States on April 26, 2026 by Mark Webster

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...