BBM supplies the SHR3.6-12 battery for the CyberPower 450VA. This Sealed Lead Acid AGM battery delivers 12.0V/3.6AH of power and is a direct replacement for the CPS3.6-12.
Battery Specifications:
Part No.: SHR3.6-12
Chemistry: Sealed Lead Acid/AGM
Voltage: 12.0V
Capacity: 3.6Ah
Dimensions: 4.02" x 1.89" x 2.59"
Terminal: T2 (.250")
Datasheet
NOTE - THIS BATTERY DOES NOT CROSS TO YOUR TYPICAL 12V/3.4AH BATTERY - IT IS TALLER AND THINNER.