APC Back-UPS ES 550 8 Outlet 550VA, BE550R 12V 8Ah UPS Battery - This is an AJC Brand Replacement This is an AJC Brand&#174; Replacement for a APC Back-UPS ES 550 8 Outlet 550VA 12V 8Ah UPS Battery Voltage: 12V (12 Volts) Capacity: 8Ah Terminals: F2