The Absolute 12V 90AH AGM Group 27 is a premium quality Absorbent Glass Mat (AGM) battery (also referred to as a Sealed Lead Acid SLA Battery) built to provide the power and performance you require when you need it! Designed for more than performance, the service life in deep cycle and float (back up) applications will keep you up and running for longer than the competition. These Group 27 12V 90AH 12 Volt 90 Amp Hour (SLA) AGM with (+ on left) Marine Combo Post Terminal Connector batteries are specially designed to be completely spill proof and leak proof, giving them the ability to be mounted in ANY position. Excellent resistance to vibration, shock, chemicals and heat they have a lower self-discharge which means less time between recharging. Go with a name that means quality and service for you battery needs in applications including: Personal Watercraft, Marine and Boats!