Antigravity Small Case 4-Cell 120CA Lithium Ion Battery
  • Antigravity Small Case 4-Cell 120CA Lithium Ion Battery
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Antigravity Small Case 4-Cell 120CA Lithium Ion Battery Videos

Antigravity Batteries Small Case 4-Cell 120CA Lithium Battery

This is the smallest battery in the Antigravity Batteries line up. This battery offers extreme power in the most compact size in Lithium motor-sport batteries. This battery is best used for applications where extreme weight loss and ultra compact size are desired. This battery is often chosen for performance applications where compact size and low weight are desired. Also a favorite of custom builders who want the smallest battery to tuck out of the way. If you have any modifications or desire more power and more capacity you should leave the old technology behind and chose Antigravity.

Technical Specs:

  • 120 CA- Cranking Amps at 32°
  • 6 Ah- Amp Hours
  • Size: 4 1/4" long x 1 1/4" deep x 3 3/4" high
  • Weight: 1 lb


  • Available with a universal right or left-side negative terminal
  • Adhesive backed foam included for easy installation
  • Ultra-lightweight and high-power Lithium Nano-Phosphate motor-sport battery
  • Can hold a charge up to a year provided there are no parasitic drains
  • Built with high quality standards with unbreakable brass terminal design
  • Excellent for every day use in bikes up to 250cc
  • Good for race use in bikes up to 450cc
  • Factory activated
  • Made in the USA
  • 3 Year Warranty

Note: RevZilla recommends charging and testing all batteries prior to using. Antigravity suggests using a modern voltage regulator from the mid 1980's-Up. Damaged voltage regulators can overcharge and damage batteries.


5 / 5
Bang For The Buck
5 / 5

Fitment Notes & Exceptions

This is a universal fit part; it may or may not fit without modification.

Product Style RevZilla Item # Manufacturer Product # Availability
Antigravity Small Case 4-Cell 120CA Lithium Ion Battery 953325 AG-401 In Stock: Ships within 24 hours


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5.0 / 5.0
3 Reviews
5 Stars
4 Stars
3 Stars
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1 Star
Bang For The Buck
5.0 / 5
Great for a 600 racebike
I put this in my racebike to replace another L-ion battery and it so far has been great. Starts every time and spins over quickly. No problems with discharging if the bike sitting for a month at a time.
April 13, 2015
Bang For The Buck
5 / 5
Solid SMALL battery
I got this for my KZ400 that has both kick and electric start. I have had no problems with it at all and was surprised the electric start worked with such a small battery. I ride daily and this battery has not left me stranded.
August 23, 2016
Bang For The Buck
5 / 5
Perfect Size
I hate dealing with Lead Acid Batteries. This battery is perfect for the modifications I'm making to my CL350. It has no problem kicking the engine over.
March 22, 2016
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Have a functionality, fit, or otherwise product-specific question about the Antigravity Small Case 4-Cell 120CA Lithium Ion Battery? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

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Why did you choose this?
RevZilla Store
Runs My KZ400B2 electric and kick.
swampthing on Oct 2, 2016
Small Size Big Power
Brandon S on Mar 20, 2016
Runs My KZ400B2 electric and kick.
swampthing on Oct 2, 2016
awsome works great about use for all motorcycles
rocco a on Jun 21, 2016
Small Size Big Power
Brandon S on Mar 20, 2016
awsome works great about use for all motorcycles
rocco a on Jun 21, 2016
I have a custom cycle that has a 1997 Harley big twin engine and charging system with a kickstarter. Will the small case 4 cell 120ca work on my bike?
A shopper on Jan 8, 2017
BEST ANSWER: Depends on your electrical. If most of your stuff is led sure. U can run off that battery if u need space. However it can't run an electric starter. That bikes engine is way to big. If u want to use the electric start you have to get the highest ca antigravity battery they make
What charger do you recommend to charge this battery? I was told the battery tender lithium junior would do the job but it wouldn't charge the battery.
A shopper on Jun 14, 2016
BEST ANSWER: I've had good results with Battery Tender brand and with Opti Mate. I watched Lemmy's video about these and I read the instructions in the box. There are some chargers which have two charging modes. I think one of the modes is high power to "cook" of residue from the bars in a lead acid battery. That mode will damage these types of batteries. Basically, you need a charger that doesn't have the "nuclear charge" mode. Check out Lemmy's review here. Also check Antigravity's website for a list of chargers and charger characteristics.