Antigravity AG-801 Small Case Lithium Battery

13 Reviews Regular price $180.00
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The Antigravity Batteries AG-801 Lithium 8-Cell Motorsports battery is one of the most popular models. It is an extremely lightweight powerful battery in a small package.

  • Small Case format
  • 4.375 x 2.37 x 3.75 inches (LxWxH)
  • 240 Cranking Amps
  • 11 Amp Hours (Pb Eq)/ 5.5Ah (Actual)
  • 1.56 lbs



*Formerly the 8-cell battery

Antigravity AG-801

Small Case Lithium 12v Powersports Battery

At a very small 4.375 x 2.37 x 3.75 inches (LxWxH to top of terminals) this lightweight motorcycle battery offers extreme power in the most compact size in Lithium Motorsport batteries. The Antigravity AG801 weighs only 1.56 lbs and is best used for applications where extreme weight loss and ultra-compact size are desired. The loss of large amounts of weight allows for faster acceleration, shorter braking distances, better overall handling, and even mileage improvements – all beneficial for the everyday rider and racer. The AG-801 Lithium battery can be used for bikes from 600cc street use and 1200cc race use.

AG-801 Features

  • Ultra-Lightweight and High-Power Lithium-Ion Motorsport Battery.
  • One of the Most Compact Lithium Motorsports Batteries available (great for racers and custom builders).
  • Adhesive-Backed Foam Included for EASY INSTALLATION.
  • Can hold a charge for up to a year provided there are no “Parasitic Drains” (accessories that draw power when the 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 Antigravity's Warranty page for details).

AG-801 Best Uses

  • Capable of every day use in bikes up to 750cc.
  • Great for use in all enduro bikes used for trail riding up to 750cc.
  • Race use for Enduro and MX electric start bikes up to 1000cc.
  • Race and Track Day use in motors up to 1200cc. (High-Performance motors should use Antigravity Battery AG-1201
  • Custom builds like cafe racers or small bore customs up to 800cc. (Please note if you use older classic bikes from mid 1980s and earlier you should update the charging systems to a modern voltage regulator.)
  • Note: there is no BMS in the SMALL CASE Batteries, only Balance Charging. They are for closed-course use only.

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! (No lead/acid chargers.) How to Choose a Charger


Customer Reviews
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Tim SVG verified by SHOP
United States United States


Elian M.

Antigravity 8-cell

I’m using this battery on a Ducati Scrambler 800. I’m extremely satisfied with the quality of the battery, the power, the weight, and small size. It’s 7lbs lighter than the battery it replaced and has a little more CCA than the old battery. Also, the guys at Revival know what they’re doing. I ordered other items from them and I’m very pleased with the quality and quick, professional handling of orders. I could go on....

Dave R.

8cell antigravity

I first bought an AGM battery and after a little research I came across the antigravity. I ordered the recommended size. when it arrived I couldn’t believe the Size and weight. I went from having one mounting option to several. High quality construction and made in USA. Custom builds need these. Hiding the battery is simple.

Juan S.

Antigravity 8cell

Second bike I install a Antigravity Battery. Money well spend.

Joshua Z.

awesome battery

awesome battery

Christian A.

Musta have on a custom bike

Ready to start a CB 750 bored to 823cc, must have on custom bike

Charles L.

Big power in a small package

So far the little battery cranks like a champ. My first shot at using a Lithium battery on a bike. Time will tell.

Shawn C.

awesome battery

Exactly as described

Mark S.

awesome power and size is perfect!

Couldnt ask for a better battery!

Christopher C.

Good guys over there

had a few hiccups on this order. Never had a problem before but they went the extra mile to make everything right. And they were always there when I called or had any technical questions

Touring the Ultimate Porsche Destination with Magnus Walker


From our customers


100% impressed over and over again by Jeff & Co at Revival. They’re patient and kind no matter the enquiry (currently resto-modding an R100/7 and have LOTS of questions about the Motogadget rewire) and go out of their way to offer creative solutions and out of the box thinking. I will forever return and recommend Revival.

Theo B.
North Vancouver, BC

I cannot recommend Revival Cycles enough. Not only do they have a great assortment of gear and accessories but they provide superb customer service. I was having some difficulty making it work... Jeff pointed out what I was missing and also provided schematics to make it work. Thank you guys very kindly, your crew rocks.

Svend P.
Santa Fe, NM

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