Antigravity Batteries

Antigravity AG-401 Small Case Lithium Battery

3 reviews $120.00
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The AG-401 is the smallest battery in the Antigravity Batteries line-up, and the most compact lightweight Lithium motorsport battery available. Ideal for race and performance applications where you need extreme weight loss, space savings, and extreme power.

  • Small Case format
  • 4.375 x 1.37 x 3.75 inches (LxWxH)
  • 120 Cranking Amps
  • 6 Amp Hours (Pb Eq)/ 2.6Ah (Actual)
  • 15.2 oz

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*Formerly the Antigravity 4-Cell Battery

Antigravity AG-401

Small Case Lithium 12v Powersports Battery

The ultra-lightweight AG-401 battery, at a minuscule 4.375 x 1.37 x 3.75 inches (LxWxH to top of terminals), offers extreme power in the most compact size in Lithium Motorsport batteries. The Antigravity AG401 is best used for Performance applications where extreme weight loss and ultra-compact size are desired. It weighs less than 1 lb yet it can start inline 4-cylinder motors up to 600cc for race use, or up to 250cc for everyday street use in scooters. This Lithium motorcycle battery is also a favorite of custom builders who want the smallest battery to tuck out of the way.

AG-401 Features

  • Ultra-Lightweight and High-Power Lithium-Ion Motorsport Battery.
  • Most Compact of Lithium Motorsports Batteries available (great for racers and custom builders).
  • Large all-brass terminal design.
  • Can be installed in any orientation.
  • 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).
  • 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-401 Best Uses

  • Capable of everyday use in bikes up to 250cc.
  • Race use for Enduro and MX electric start bikes up to 450cc. (If you have a 250cc 2-stroke you will need to use the Antigravity Battery AG-801)
  • Race and Track Day use in inline 4-cylinder 600cc sport bikes. (Honda CBR600 rider should use the Antigravity Battery AG-801)
  • Custom builds like cafe racers or small bore customs up to 350cc. (Please note if you use older classic bikes from mid 1980s and earlier you should update the charging systems to a modern voltage regulator; damaged voltage regulator can overcharge the battery and damage it.)
  • 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


Reviews

Customer Reviews
4.7 Based on 3 Reviews
5 ★
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KM
07/21/2020
Kevin M.

Antigravity battery

Can’t believe how small and light it is yet packs the power. A must if you are tricking out your bike

Antigravity 4-Cell Small Case Battery
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MH
05/25/2020
Mike h.

Battery

Fit very well in my project. Only complaint is the battery doesn't have built in over and under charge protection like some others.

Antigravity 4-Cell Small Case Battery
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MH
05/10/2017
Michael H.

Anti Gravity

The fit and finish of this battery is sterling and it is has held it's voltage at 13.1 volts since the day it has arrived. This was a concern as I could not start my Norton to recharge the battery until the custom single axle assembly returned from my machinist. I'm very satisfied with this purchase.

Antigravity 4-Cell Small Case Battery
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