APC Back-UPS 500 BK500EI BK500M BK500MC 12V 7Ah UPS Battery - This is an AJC Brand Replacement This is an AJC Brand&#174; Replacement for a APC Back-UPS 500 BK500EI BK500M BK500MC 12V 7Ah UPS Battery Voltage: 12V (12 Volts) Capacity: 7Ah Terminals: F2