Sealed AGM Powersport - With absorbed glass mat (AGM) batteries, the battery acid is "absorbed" into fiberglass separators (a sponge-like mat of fineglass fibers) so that the battery has no free-flowing electrolyte. Therefore an AGM battery can be operated in virtually any position. These batteries are completely maintenance-free and have lower internal resistance than similar flooded batteries, which means they will provide both faster high performance starts and faster recharge times. Sealed Powersport batteries are used in a variety of powersport vehicles like ATVs, snowmobiles and motocross, as well as motorcycles and other applications.​