Antigravity Batteries AT7B-BS-RS RE-START Lithium Ion Powersports Battery 150CA (MPN: AG-AT7B-BS-RS)

Drop massive amounts of dead weight from your electrical tray while ensuring you never get stranded by an accidental power drain. The Antigravity Batteries AT7B-BS-RS RE-START Lithium Ion Powersports Battery 150CA is a drop-in high-performance replacement starter cell precision-crafted to maximize mechanical leverage over heavy, inefficient factory electrical configurations [MPN: AG-AT7B-BS-RS]. Generating a reliable 150 cranking amps, this ultra-lightweight LiFePO4 battery safely replaces cumbersome lead-acid options to trim roughly 4.5 lbs (2.0 kg) off your machine, instantly sharpening steering response, braking efficiency, and power-to-weight ratios. If an electrical accessory, lighting kit, or ignition switch is accidentally left running, the integrated Battery Management System automatically puts the cell into a sleep mode before the core energy depletes completely, reserving an isolated pocket of power to turn over your motor at the push of a wireless remote keyfob or the on-casing manual button.

Universal Battery Specification Parameters

This premium motorsports energy storage module conforms precisely to standard YT7B-BS dimensional envelopes, incorporating a highly versatile 4-terminal design that supports both left and right-side negative or positive configuration layouts for effortless cable routing. The rugged interior construction safely absorbs violent acceleration spikes and heavy off-road track vibrations while remaining completely sealed against liquid leakage or corrosive gassing. It can confidently maintain a full shelf charge for up to one entire year, provided the host machine is completely free of active background parasitic drains. To maintain long-term cell health and avoid 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, utilizing only dedicated LiFePO4 lithium smart chargers maintaining a regulated top-off voltage profile between 14.4V and 14.6V.

Yamaha Sportbike & Off-Road Performance Lineages

• Yamaha YZF-R6 Superbike Circuit Platforms — 1999 to 2027
• Yamaha Raptor 250 / Raptor 350 Sport All-Terrain Vehicles — 2004 to 2013
• Yamaha YZ250FX / YZ450FX Cross-Country Race Lineages — 2015 to 2027
• Yamaha WR250R / WR250X Dual-Sport Performance Layouts — 2008 to 2021

Kawasaki Off-Road & Motocross Trays

• Kawasaki KLX250S / KLX250SF Dual-Sport Models — 2006 to 2020
• Kawasaki KLX300 / KLX300R Dual-Sport and Off-Road Lineages — 2021 to 2027
• Kawasaki KX250XC / KX450XC Cross-Country Performance Platforms — 2021 to 2027

Other Applications

This drop-in high-power configuration matches the standardized dimensions of conventional YT7B-BS and YT9B-BS lead-acid battery footprint locations. It acts as the ultimate performance upgrade for a wide spectrum of specialized European and Japanese sport motorcycles, naked streetfighters, adventure dual-sports, and sport ATVs requiring immediate initial torque to push past high internal engine compression. It can be securely mounted in any orientation layout.

CRITICAL INSTALLATION AND SAFETY NOTES: Always execute proper terminal separation sequences by disconnecting the ground negative cable first during removal and connecting the ground negative cable last during final installation to avoid hazardous chassis shorts. Never utilize traditional workshop lead-acid battery chargers or tenders that feature an automatic or manual high-voltage desulfation pulse mode, as this process will instantly destroy the internal lithium circuit and void all factory warranties. Ensure the battery module is snugly secured in your machine's tray using the included adhesive-backed high-density foam spacers to eliminate physical rattling, and check that all terminal fastening bolts are fully torque-seated to prevent intermittent cranking failures.

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.