"POWER AGM Deep Cycle Batteries are engineered with advanced technology features that provide outstanding sustained performance and total energy output. Suited for Caravaning, Camping and Off Grid Power Storage.   Features and Benefits   Absorbent Glass Mat (AGM) technology for efficient gas recombination of  up to 99% and freedom from electrolyte maintenance or water adding.  Easy maintenance and installation  No need for extra above battery Sealed and maintenance free operation Non-Spillable construction design ABS containers and covers  Safety valve installation for explosion proof Maximized energy density for installation in relay rack trays High quality and high reliability Exceptional deep discharge recovery performance Flexible design for multiple installation positions"