Antigravity SC-1 Lithium Battery

(7 customer reviews)


The Antigravity SC-1 is the smallest, most powerful Motorsport battery in the WORLD!!! This battery is designed for Race Motorcycles and Powersports vehicles up to 1300cc in competition use only. It is so powerful it can even start a V8 Motor. It has a lower capacity than our 4-Cell model but offers twice the power!

  • Small Case format
  • 4.375 x 1.37 x 3.75 inches (LxWxH)
  • 150 Cranking Amps
  • 5 Amp Hours (Pb Eq) (2.2Ah Actual)
  • 15.2 oz

Available on backorder

UPC: 639713373097 SKU: AG-SC-1 Category:


Extreme Power Series (XPS) Small Case Lithium Battery

Though a minuscule 4.375″ Length x 1.37″ Depth and 3.75″ Height (to the top of the terminals) the SC1 battery can start a V8 Motor! It weighs less than 1 lb, yet is as powerful as our competitors’ batteries that are TWICE the size. For example if you used an 8-Cell Ballistic battery before, our SC-1 can start anything the 8-Cell Ballistic does and is HALF the weight and HALF the size!

NOT RECOMMENDED FOR DAILY DRIVER TYPE VEHICLES!!!! It has a smaller capacity than recommended for regular use in street-only vehicles. USE for RACE.


  • Adhesive-Backed Foam Included for EASY INSTALLATION.
  • The Smallest, Most Powerful battery ever made for Motorsports.
  • So Powerful it can easily start V8 Motors yet is so small it can fit in your pocket.
  • 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.
  • 3-Year Warranty (view our Warranty page for details).

Best Uses

  • Race use for Sport Bikes, Enduro and MX electric start bikes up to 1300cc. Example: Can easily start high compression Ducati V-Twin motors yet only weighs 15 oz.
  • Note: there is no BMS in the SMALL CASE Batteries, only Balance Charging. They are for closed course use only.

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 2 lbs
Dimensions 5 × 6 × 4 in
Product Weight

0.95 lbs

Product Size

4.375″ x 1.37″ x 3.75″ (mm: 111x35x95)

Cranking Amps


Amp Hours (Pb Eq)


Reviews (7)

7 reviews for Antigravity SC-1 Lithium Battery

  1. Anonymous

    Starts my modified, Lotus Elise perfectly for a race car.. That is, it always starts on the 2nd-4th try on 45 degree mornings. The car is dedicated to racing. It is important to realize that this would be terrible for a street car that you drive to work or to the mall. I have a battery cutout switch that I throw EVERY time I stop the car. If a race car starts easily the battery is too big, if it doesn’t start, the battery is too small. If it just barely starts, but starts every time… perfect. This battery is perfect for my car.

  2. KWICK Aronson

    I have had this in my 12.5:1 compression 1109cc Kawasaki ZRX1100 since December 20, 2013. I have a lot of parasitic load, so if I don’t ride it once every two weeks, I plug it into the Optimate TM421 charger for an hour. My bike is an exercise in light weight, and the SC-1 is a perfect addition. It’s amazingly small. Cold mornings you need to “warm” it up like any small lithium battery, but after you do, it spins over incredibly fast.

    A-G will view my usage as “Racing” and I treat it like an expendable. If I have to buy a replacement every 9-12 months, I’m OK with that.
    Some are not, I’d recommend the proper size/amperage as suggested by A-G for those guys & gals.

  3. Paul

    This is the second one I have bought. This one went in my Sons 900RR Raptor build. Small and powerfull. Cranks better than the oem battery.

  4. Paul

    I purchase this battery for a Honda 900RR build in a Yamaha Raptor frame. It’s small, light weight and cranks that 900 instantly. Getting ready to buy another one for a 900 build for my son.

  5. Paul Barkhurst

    Wow, Cant believe how fast this little battery cranks my ’13 KTM 300 XC….. I will definatly be promoting it to my friends (Except the ones who race in my class)….. Battery issues are a big problem with all of us and hope it lasts…

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