APC Back-UPS Pro 1100, BP1100 12V 10Ah UPS Battery - This is an AJC Brand Replacement This is an AJC Brand&#174; Replacement for a APC Back-UPS Pro 1100 12V 10Ah UPS Battery Voltage: 12V (12 Volts) Capacity: 10Ah Terminals: F2 Number of Batteries Required for a Full Replacement 2