Antigravity AG-1201 Lithium Battery

(9 customer reviews)


The Antigravity Batteries AG-1201 is an extremely versatile high power and lightweight Lithium Motorcycle/Motorsports battery. It has the capability for large weight reduction in the most compact size in lithium batteries in its class.

  • Small Case format
  • 4.5 x 3.25 x 4.25 inches (LxWxH)
  • 360 Cranking Amps
  • 16 Amp Hours (Pb Eq)/ 8Ah (Actual)
  • 2.25 lbs

In stock (can be backordered)

SKU: AG-1201 Category:


Small Case Lithium Battery

The Antigravity AG1201 battery has 360 Cranking Amps yet is only 4.50 x 3.25 x 4.25 inches (LxWxH to top of terminals). This lightweight Lithium motorsports battery weighs only 2.25 lbs and is a great choice for those seeking very high power in a compact battery. It can replace the typical 12Ah lead/acid battery with a weight savings of up to 7 pounds while offering much more cranking power. This battery is best used for applications where extreme weight loss and ultra compact size are desired.


  • Ultra-Lightweight and High-Power Lithium-Ion Motorsport Battery.
  • Most Compact of Lithium Motorsports Batteries available (great for racers and custom builders).
  • Adhesive-Backed Foam Included for EASY INSTALLATION.
  • Can hold a charge up to a year provided there are no “Parasitic Drains” (accessories that draw power when bike is off (i.e. alarms, ECUs, iPods, GPS, heated grips, etc).
  • Large all-brass terminal design.
  • Can be installed in any orientation.
  • No highly toxic materials like Acids or Lead.
  • No fluids to leak and damage the vehicle.
  • 3-Year Warranty (view our Warranty page for details).

Best Uses

  • Capable of every day use in bikes up to 1100cc (For more capacity and power use the Antigravity AG-1601).
  • Race and Track Day use 1500cc.
  • Custom builds up to 1200cc. (If using a high-performance motor use the Antigravity AG-1601).
  • 4 Cylinder Race Cars up to 1800cc.

Not for use in Passenger Cars or Street use Automobiles.
Not for use in PWC (Personal Watercraft).

Use only Lithium specific Motorsport Chargers to charge this battery! Do not use Lead/Acid Chargers. How to Choose a Charger

Recommended Accessories

Proposition 65 Warning

WARNING: Cancer and Reproductive Harm –

Additional information
Weight 3.5 lbs
Dimensions 5 × 6 × 4 in
Product Weight

2.25 lbs

Product Size

4.5" x 3.25" x 4.25" (mm: 114x83x108)

Cranking Amps


Amp Hours (Pb Eq)


Reviews (9)

9 reviews for Antigravity AG-1201 Lithium Battery

  1. Herman Gould

    AG1201- I can’t believe the quality of this batteries casing!! Perfect for the custom bike builder

  2. McB Sports

    We Use AntiGravity Batteries in
    ALL our Vintage Cafe Bikes

  3. Dwayne Foor

    To early to give you a complete review but I am very excited about the weight and size. I am in the middle of a little customization. …thanks

  4. Anonymous

    Since day 1 my 2009 Aprilia SXV cranked slow and had a hard start problem…especially in the cold. I installed a 12 cell AnitBravity battery and the problem is solved. Cranks faster and starts reliably.
    Now I dont fear getting stranded.

  5. Wayne Sears

    I am building a L/S bike (long/skinny) using parts I’ve had for years. The front end is a Harman 15″ over girder that I used on a 39 knuck in 1974. Using that front end as a starting point an building a copy of that bike but thus time I am using an Evo engine. Order a teardrop oil tank that was supposed to allow the use of a stock SoftTail battery. No way but the tank maker sold Antigravity batteries. I ordered direct from Antigravity, not wanting to deal with oil tank maker. Got the battery it fit and starts the 8o” Evo easily. Very happy with product. If you can afford one buy it thanks, The Grandimagineer P S. I am a 70 year biker and Mustang Person. That has been building bikes and Mustangs for many a year

Only logged in customers who have purchased this product may leave a review.