FEATURES: RECHARGEABLE NIMH CHEMISTRY LAST UP TO 4 TIMES LONGER IN DIGITAL CAMERAS RETAINS CHARGE FOR UP TO 1 YEAR WHEN NOT IN USE PRE-CHARGED AND READY TO USE CAN BE USED FOR HUNDREDS OF CHARGE CYCLES ENERGY STAR CERTIFIED SPECIFICATIONS: MODEL NUMBER: NH22BP CAPACITY: 175 MAH CHEMISTRY: NICKEL-METAL HYDRIDE IMPEDANCE: 950 MILLIOHMS @ 1000 HZ INTERNAL RESISTANCE; 1000 MILLIOHMS (CHARGING), 1500 MILLIOHMS (DISCHARGING) JACKET MATERIAL: PLASTIC TERMINAL TYPE: SNAP CONNECTOR NOMINAL VOLTAGE: 7.2V RATED VOLTAGE: 8.4V DIMENSIONS: LENGTH: 1.909 INCHES WIDTH: 1.043 INCHES HEIGHT: 0.689 INCHES WEIGHT: 41 GRAMS