The Antigravity AG-401 is the world’s most compact and lightweight high-performance Lithium (LiFePO4) motorsport battery. Designed for riders who demand extreme weight savings and a clean, minimalist aesthetic, this "Small Case" powerhouse is a favorite for custom builders and professional racers alike.

Weighing in at less than 1 lb, the AG-401 allows you to hide your battery under seats or in frames, providing a "hidden power" look without sacrificing starting reliability. It delivers twice the service life of lead-acid batteries with zero maintenance.

Perfect For:

·         Custom Builders: Ideal for Cafe Racers, Bobbers, and Choppers where space is at a premium.

·         Performance Racing: Drastic weight reduction for Track Day bikes and Enduro/MX.

·         Daily Commuters: Reliable starting for scooters and small-displacement street bikes.

Popular Fitment & Use Cases:

Honda Rebel 250, Yamaha V-Star 250, Suzuki TU250X, Kawasaki Ninja 250, and most modern scooters, Yamaha R6, Suzuki GSX-R600, Kawasaki ZX-6R, KTM XC-F/EXC-F 250/350/450, Husqvarna FE/FC series, Honda CRF450X, Yamaha WR450F, Ideal for Cafe Racers (Honda CB175/CB350), Vintage small-bore trackers, and custom Bobbers.

And many more ATVs and lightweight racing karts.

Always confirm your charging system output and space requirements before purchase.

Note: Pre-1990 bikes require a modern solid-state voltage regulator for compatibility.

FEATURES

·         Smallest Footprint: The most compact 12V Lithium battery on the market.

·         Ultra-Lightweight: Only 15.2 oz (save up to 5 lbs over stock batteries).

·         Versatile Mounting: Can be mounted in any orientation (upside down/sideways).

·         High Performance: Large all-brass terminals for maximum conductivity.

·         Long Shelf Life: Holds a charge for up to a year (no parasitic drain).

·         Eco-Friendly: No lead, no acid, and zero toxic liquids.

SPECS

·         Cranking Amps: 120 CA

·         Amp Hours: 6 Ah (PbEq) / 2.35 Ah (Actual)

·         Watt Hours: 30 Wh

·         Weight: 0.95 lbs / 15.2 oz

·         Dimensions (US): 4.25" x 1.25" x 3.75"

·         Dimensions (Metric): 110mm x 32mm x 95mm

WHAT’S INCLUDED

·         Antigravity AG-401 Small Case Battery

·         Adhesive-Backed Foam (for easy vibration-resistant installation)

·         Terminal Hardware

IMPORTANT

·         Charger: Use Lithium-specific (LiFePO4) chargers only.

·         Small Case Note: This model features Balance Charging but does not include an internal BMS (Battery Management System). It is designed for closed-course and specific custom applications.

·         Not for Automotive use.