Antigravity Batteries AG-801 Small Case Lithium Starter Battery – Lightweight High-Cranking Battery for Performance Motorcycles & Powersports (No BMS)

The Antigravity Batteries AG-801 is a specialized small-case lithium starter battery engineered specifically for performance motorcycles and powersports vehicles. It is intended for riders who require strong cranking output with minimal weight, where reduced mass provides a noticeable benefit in acceleration, handling, and throttle response. The AG-801 is used extensively in performance, racing, and track applications due to its compact size (4.25 x 2.25 x 3.75 inches) and high power-to-weight ratio. Its lithium chemistry provides excellent starting performance while eliminating unnecessary weight associated with traditional lead-acid batteries. Important Usage Notice: The AG-801 does not include an internal Battery Management System (BMS). Because of this, it is recommended only for riders who understand performance electrical systems and are using the battery in motorcycles or powersports vehicles designed for lightweight, high-cranking applications. For general use, street motorcycles, daily riding, or vehicles with additional electrical accessories (alarms, GPS trackers, heated grips, etc.), use the ATZ7 or other Antigravity models that include BMS protection. Fitment Guidance: To confirm compatibility, measure your OEM battery or battery tray and compare it to the AG-801 dimensions: 4.25 x 2.25 x 3.75 inches. This product is NOT recommended for passenger vehicles, non-performance applications, or vehicles with high parasitic draw.

• Performance Motorcycle Application – Designed for high-cranking performance motorcycles, race bikes, and powersports vehicles requiring lightweight power delivery.
• Small Case Format – Compact footprint (4.25 x 2.25 x 3.75 in) is ideal for builds with limited space, custom projects, and weight-sensitive setups.
• No BMS (Battery Management System) – Intended for knowledgeable riders using performance electrical systems; not suited for general-use or everyday applications.
• Durable & Vibration Resistant – Built to withstand motorsports, off-road environments, and harsh riding conditions
• Fitment Guidance – Verify OEM battery dimensions and charging system health before purchase. For street or non-race use, choose the ATZ7, which includes integrated BMS protection