Motorcycles use the oldest and most reliable type of rechargeable battery, the Lead Acid battery. Chrome Battery offers a large inventory of YTZ7S-BS motorcycle batteries to replace your existing battery. AGM Sealed Lead Acid batteries are considered the highest performing battery available on the market today. Each Chrome Battery YTZ7S-BS Maintenance Free and Fully Charged motorcycle battery is constructed with lead calcium alloy and absorbed glass mat technology, which allows a completely 'maintenance-free' operation. No Spills, No Leaks And No Water to Check AGM Separators for superior design Heavy Duty Terminals Extreme Vibration Resistance Improved Life Cycle Performance Supplied Factory Activated (Filled, Sealed And Charged) for immediate use All YTZ7S-BS Chrome Battery AGM motorcycle batteries are manufactured with the highest quality materials and rigorously tested to ensure safety, OEM compatibility, effectiveness and optimal performance.