APC Back-UPS ES 500 VA, BE500C, BE500U 12V 8Ah UPS Battery - This is an AJC Brand Replacement This is an AJC Brand&#174; Replacement for a APC Back-UPS ES 500 VA 12V 8Ah UPS Battery Voltage: 12V (12 Volts) Capacity: 8Ah Terminals: F2