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Antigravity Batteries

Antigravity Batteries - XPS YTX20 Lithium Battery - Left Side Negative Terminal

Antigravity Batteries - XPS YTX20 Lithium Battery - Left Side Negative Terminal


Regular price $409.99 USD
Regular price Sale price $409.99 USD
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Extreme Power Series (XPS) Lithium Battery

The Antigravity YTX20 is a Lithium battery to replace the OEM Lead/Acid Battery often called the YTX20, YTX20L, YTX20H, YTX20-BS, or the “20 Size”. The OEM standardized size of the YTX-20 is used in many different manufacturers models of Motorcycles including Harley-Davidsons, Victory, Metric Cruisers/Tourers as well as many Powersport Vehicles such as UTVs/ATVs, Snowmobiles, and more. In comparison, Antigravity’s Lithium-Ion version offers impressive weight savings at only 4.68 lbs, and OVER 2.5 times the Cranking Power of the Lead/Acid version! So those difficult-starting large Custom V-Twin Motors can be turned over with ease.

The Antigravity YTX-20 battery can also be used in Hi-Performance Automotive and Racing applications where extremely high cranking power and massive weight reduction in a very compact size are desired. As with all our batteries, you can easily bolt on our Automotive Terminal Adapters for use in high-performance automotive applications.

To give you an idea of the power of this battery, the YTX-20 can easily start 145 Cubic Inch S&S V-Twin Motors, and just as easily start an 800 Horsepower V8 Roush Racing Motor typically found in Trophy Trucks or NASCAR Sprint Cars, yet the battery weighs LESS than 5 pounds! At a massive 780 Cranking Amps in an extremely compact size, this battery offers the most power in the smallest package you can find for your vehicle.


  • Ultra-Lightweight and Highest Power Lithium Motorsport Battery is made in this size format.
  • Super Compact Lithium-Ion Battery Design.
  • Can offer weight savings of up to 32 pounds in race cars and 14 pounds in Motorcycles.
  • Can hold a charge OVER a year provided there are no “Parasitic Drains” (accessories that draw power when the vehicle is off, such as alarms, ECUs, iPods, GPS, heated grips, etc).
  • Sturdy, big, all-brass terminal design.
  • All Antigravity Batteries are designed to allow for BOLT-ON SAE Automotive Battery Terminals for use with Performance Autos.
  • 3-Year Warranty.

Best Uses

  • Excellent for everyday use in bikes up to 2600cc.
  • Great for extra-large, high-performance V-Twin motors.
  • Best Choice for Extra Large V-Twin Motors… if this battery won’t turn over then it is not a battery issue.
  • Excellent for Touring Bikes, Adventure Bikes, and Bikes where extreme power and larger Amp Hour capacity are needed.
  • Excellent for use in Race Cars of all types including large V-8 Racing Motors.
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