APC Back-UPS XS XS1000 (BX1000G) 12V 8Ah UPS Battery - This is an AJC Brand Replacement This is an AJC Brand&#174; Replacement for a APC XS1000 (BX1000G) 12V 8Ah UPS Battery Voltage: 12V (12 Volts) Capacity: 8Ah Terminals: F2