APC Back-UPS ES 350, BE350, BF350-I 12V 4.5Ah UPS Battery - This is an AJC Brand Replacement This is an AJC Brand&#174; Replacement for a APC Back-UPS ES 350 12V 4.5Ah UPS Battery Voltage: 12V (12 Volts) Capacity: 4.5Ah Terminals: F1