... (SRD500-2)(2V/500Ah)Valve regulated lead acid series ups batteries are designed with AGM (Absorbent Glass Mat) technology ... equipment, Alarm system, Emergency light system, Standby power supply, UPS and computer standby power supply, Power system, Telecommunication system, ... Good resistance to overcharge. Good resistance to high current. UPS battery 2V/500Ah VRLA Maintenance Free Battery in Industrial ( ...