Sealed AGM General Purpose/UPS - With absorbed glass mat (AGM) batteries,the battery acid is "absorbed" into fiberglass separators (a sponge-like mat offline glass 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 AGM batteries of this nature are used in applications where uninterruptable power supply is required, such as security, telecom and backup power.​