Drypower 12SB20CDrypower 12V 20Ah Sealed Lead Acid BatteryUsage and Composition Backup and Main Power Cyclic Use Sealed Lead Acid (SLA) Battery Specifications Voltage 12V Watt Hour 240.0Wh Nominal Capacity 20Ah Physical Dimensions Termination F3 (M5 Nut and Bolt) Width 76mm Height 167mm Length / Breadth / Depth 181mm Weight 59.5Kg