PRODUCT DATASHEET ENERGIZER NH50-2500 (HR20) D Specifications Classification: Rechargeable Chemical System: Nickel-Metal Hydride (NiMH) Designation: ANSI-1.2H4 Nominal Voltage: 1.2 Volts Rated Capacity: 2500 mAh* at 21°C (70°F) Typical Weight: 73.0 grams (2.6 oz.) Typical Volume: 57.0 cubic centimeters (3.5 cubic inch) Industry Standard Dimensions Terminals: Flat Contact mm (inches) Jacket: Plastic * Based on 500 mA (0.2C rate) continuous discharge to 1.0 volts. 1.50 (0.059) 34.20 (1.346) Minimum 9.50 (0.374) 32.30 (1.272) Internal Resistance: Maximum (+) The internal resistance of the cell varies with state of charge, as follows: Cell Charged Cell 1/2 Discharged 61.50 (2.421) 11 milliohms 21 milliohms 59.50 (2.343) (tolerance of ±20% applies to above values) (-) AC Impedance (no load): 18.0 (0.709) Minimum The impedance of the charged cell varies with frequency, as follows: Discharge Characteristics Frequency (Hz) Impedance (milliohms) Typical Performance at 21ºC (70ºF) (charged cell) 1.4 1000 9 1.3 e 250 mA Above values based on AC current set at 1.0 ampere. ag 1.2 (0.1C) Value tolerances are ±20%. olt 500 mA V 1.1 ell (0.2C) C 1.0 0.9 Operating and Storage Temperatures: 0 3 6 9 12 Hours of Discharge To maintain maximum performance, observe the following general guidelines regarding environmental conditions: 1.4 1.3 Charge: 0ºC to 40ºC (32ºF to 104ºF) ge 1250 mA Discharge: 0ºC to 50ºC (32ºF to 122ºF) olta 1.2 2500 mA (0.5C) Storage: -20ºC to 30ºC (-4ºF to 86ºF) ell V 1.1 5000 mA (1.0C) Humidity: 65±20% C 1.0 (2.0C) NOTE: Operating at extreme temperatures, will significantly 0.9 impact battery cycle life. 0.0 0.5 1.0 1.5 2.0 2.5 Hours of Discharge Important Notice This data sheet contains typical information specific to products manufactured at the time of its publication. Contents he rein do not constitute a warranty and are for reference only. Form No. NH50-2500GL1118 Page 1 of 1