Yuasa's elite performer, the AGM series, has more cranking amps and higher amp hour capacity for years of trustworthy service.FEATURES Premium absorbed glass mat (AGM) technology Sealed, non-spillable design Meets or exceeds Powersports OEM specs Maintenance Free NEVER add water, but periodic charging required when not in use Engineered to protect against corrosion, withstand vibration, and deliver high cranking power Polypropylene cover and container superior resistance in extreme conditions of cold and heat, more flexible than ABS material Special absorbed-glass mat battery eliminates water loss, permitting the battery to be permanently sealed once it is filled with acid