Stand Power SL (Long Service Life) Series battery utilizes thick grids of modern technology are adopted so as to guarantee the design life up to 15 years. Advanced micro porous absorbed glass matt separator - minimizes diffusion of oxygen into the separator, reducing battery float charge current which suppresses the corrosion rate of the positive grid and extends the life of the battery. Features Extra long life service design (up to 20 years for 2V models) Non-spillable valve regulated lead acid design. Absorbed glass mat (AGM) technology. ABS cases (UL94HB), flame retardant cases (UL94-V0) optional Higher safety & reliable construction Applications Cable Television Communication Equipment Control Equipment Security System Medical Equipment UPS Emergency Power System