Drypower 12SB18TLDrypower 12V 18Ah Sealed Lead Acid BatteryUsage and Composition Backup and Main Power Cyclic Use Sealed Lead Acid (SLA) Battery Specifications Voltage 12V Watt Hour 216.0Wh Nominal Capacity 18Ah Physical Dimensions Termination F3 (M5 Nut and Bolt) Width 76mm Height 167mm Length / Breadth / Depth 181mm Weight 56.7Kg