Antigravity AT12BS-HD-RS

The Antigravity AG-AT12BS-HD-RS RE-START Lithium Battery is a heavy-duty, lightweight lithium motorcycle battery built for riders who want maximum starting power with serious weight reduction. Designed as a high-output upgrade for motorcycles and powersports vehicles using a YT12-BS battery size, the AT12BS-HD-RS delivers 480 cranking amps, 16Ah PbEq capacity, and weighs only 2.9 lbs, making it a major performance upgrade over traditional lead-acid batteries.

For riders looking to reduce unnecessary weight, improve power-to-weight ratio, and modernize their electrical system, the AG-AT12BS-HD-RS offers one of the easiest performance upgrades available. Its compact lithium construction helps remove weight from the bike while still providing strong, reliable cranking power for larger engines, high-compression builds, touring motorcycles, sport bikes, and performance-focused powersports applications.

Built with Antigravity’s RE-START Technology, this battery includes built-in jump-start capability to help prevent being stranded from an over-discharged battery. It also uses LiFePO4 lithium chemistry with a full Battery Management System for added protection, stability, and long-term reliability. The 4-terminal design allows flexible installation, while its ability to mount in any orientation makes it a clean, versatile replacement for OEM lead-acid batteries.

Whether you are upgrading a BMW motorcycle, sport-touring bike, adventure bike, or custom performance build, the Antigravity AG-AT12BS-HD-RS delivers lightweight lithium performance, stronger starting power, and modern battery technology in a compact direct-replacement package.

Battery Size Replaces:
YT12-BS, YT12B, YT12B-BS, YT14-BS, YT14B-BS.