Antigravity Extreme Power Series Small Case 4-Cell Lithium Ion Powersports Battery 120CA (MPN: AG-401)

Drop a substantial amount of dead weight from your lightweight race build while maximizing compact packaging. The Antigravity Extreme Power Series Small Case 4-Cell Lithium Ion Powersports Battery 120CA is an ultra-compact, competition-grade starter cell precision-crafted to maximize mechanical leverage over performance internal combustion engines [MPN: AG-401]. Generating a reliable 120 cranking amps from a microscopic chassis that fits in the palm of your hand, this featherweight LiFePO4 battery safely replaces bulky lead-acid options to trim up to 4.5 lbs (2.0 kg) off your machine, instantly sharpening handling balance, chassis agility, and power-to-weight ratios. By actively removing internal automated sleep electronics and restrictive cutout circuitry to preserve physical cell mass, this specialized racing battery delivers uncompromised continuous electrical throughput for professional closed-course racers and custom builders.

Universal Battery Specification Parameters

This premium motorsports energy core operates within a hyper-compact small-case envelope, incorporating heavy-duty top terminals featuring an unbreakable all-brass block design engineered for high-conductivity connections. The advanced internal configuration safely absorbs violent acceleration spikes and heavy off-road track vibrations while remaining completely waterproof and sealed against liquid leakage or corrosive gassing. It can confidently maintain a full shelf charge for up to one entire year, provided the host racing machine is completely free of background parasitic draws. To preserve long-term cell health and eliminate terminal arcing, installers must confirm that the vehicle’s alternator or stator charging system is fully operational and regulated below a maximum continuous safety threshold of 14.8V.

Lightweight Enduro & Motocross Racing Platforms

• KTM 250 XC-F / 350 XC-F / 450 XC-F (Closed-Course Race Trim Only) — 2011 to 2027
• Honda CRF250R / CRF450R (Electric Start Track Layouts) — 2017 to 2027
• Yamaha YZ250F / YZ450F (Electric Start Track Outfits) — 2018 to 2027
• Husqvarna FC 250 / FC 350 / FC 450 Motocross Models — 2016 to 2027
• Kawasaki KX250 / KX450 Racing Performance Platforms — 2019 to 2027

Lightweight Mini MOTO & Custom Electronics Trays

• Honda Grom 125 / Monkey 125 (Dedicated Lightweight Track Builds) — 2014 to 2027
• Kawasaki Z125 Pro (Lightweight Custom Race Layouts) — 2017 to 2027

Other Applications

This drop-in ultra-compact module matches the general physical boundaries needed for custom cafe racers, bobbers, choppers, vintage project bikes, and performance kick-start platforms up to 1200cc (or up to 450cc for dedicated electric-start race dirt bikes). Its miniature casing makes it the premier choice for under-seat battery trays, swingarm mount boxes, and hidden electronics enclosures where frame-rail space is severely restricted. Note that due to its micro-sized, race-optimized 6Ah Pb-Eq capacity threshold, this module is strictly not intended for use in passenger cars, street-use automobiles, total-loss electrical loops, or vehicles featuring constant accessory draws or anti-theft alarms.

CRITICAL INSTALLATION AND SAFETY NOTES: Always disconnect the negative grounding lead first during stock battery removal and connect the negative grounding terminal last during final installation to eliminate the risk of accidental frame shorts. Clean your battery tray thoroughly, and use the included adhesive-backed high-density foam shims to pack out the box snugly, which completely isolates the smaller casing structure from physical trail vibration. Thread the terminal screws cleanly into the brass block connections by hand first to avoid dangerous cross-threading, and strictly avoid utilizing any manual or automatic lead-acid chargers featuring high-voltage desulfation pulse modes as doing so will instantly cause thermal damage.

Technical Specifications

Why Riders Shop Mad Lads Moto

• We ensure completely reliable fitment data by cross-referencing factory parts microfiche. Your safety on the road or trail relies on getting the exact right hardware without any guessing.
• Our warehouse processes orders rapidly to minimize your machine's downtime. We ship your critical replacement parts out quickly so you can return to riding.
• Every rider receives active support from genuine powersports specialists. You can contact the expert team at Mad Lads Moto to get answers to technical plumbing, electrical, and hardware inquiries.
• We stand behind our catalog with simple, hassle-free returns. Shopping with us is entirely straightforward and secure from checkout to delivery.