Nominal voltage 6 v Capacity (25¡æ) 20hr(5.25v) 4.5ah 10hr(5.25v) 4.2ah 1hr(4.80v) 2.95ah Internal resistance (fully charged, 25¡æ) Approx. 25m|¸ Float charging voltage 6.80 to 6.90v Temperature compensation: -9mv/¡æ Cyclic charging voltage(25¡æ) 7.25 to 7.50v Temperature compensation: -15mv/¡æ Maximum charging current 1.35a Maximum discharge current 67.5a(5 sec.) Designed floating life(20¡æ) 5 years Length 70¡¨¤1mm (2.76inch) Width 47¡¨¤1mm (1.85inch) Height 101¡¨¤1mm (3.98inch) Total height 107¡¨¤1mm (4.21inch) Approx. Weight 0.74kg (1.63lbs)¡¨¤5% Terminal type f1