Eveready Battery Company, Inc. R Checkerboard Square St. Louis, MO 63164 Telephone: 1-800-383-7323 Internet: www.energizer.com Engineering Data D Rechargeable 1.2V Nickel-Metal Hydride ENERGIZER NO. NH50 Chemical System: Nickel-Metal Hydride (NiMH) Dimensions (mm) 1.50 Minimum 34.20 32.20 9.50 7.80 Millimeters .60 1.50 1.60 7.80 9.50 32.20 34.20 59.50 61.50 (+) Designation: Not Assigned Battery Voltage: 1.2 Volts Average Weight: 73 grams (2.6 oz.) Volume: 56.5 cubic centimeters (3.5 cubic inch) Terminals: Flat Contact Rated Capacity ( to 1.0 Volt ): 2.2 Ah ( Based on 440 mA (0.2C) discharge rate ) Maximum Charge Rate: 440 mA Jacket: Plastic Inches .024 .059 .063 .307 .374 1.268 1.346 2.342 2.421 Internal Resistance 61.50 59.50 The internal resistance of the cell varies with state of charge, as follows: Cell Charged Cell 1/2 Discharged 11 milliohms 21 milliohms (Tolerance of +- 20% applies to above values) This dimension applies contact to contact 1.60 .60 (-) AC Impedance (No Load) The impedance of the charged cell varies with frequency, as follows: Frequency (Hz) Impedance (milliohms) (for charged cell) TYPICAL DISCHARGE CHARACTERISTICS Average Performance at 21°C (70°F) 1000 9 1.4 Note: Above values based on AC current set at 1.0 ampere. Value tolerances are +- 20%. Cell Voltage 1.3 1.2 1.1 220 mA (0.1C) 440 mA (0.2C) 1.0 0.9 0 2 6 4 8 10 12 Hours of Discharge 1.4 Operating and Storage Temperatures Ranges of temperature applicable to operation of the NH50 cells are: Charge @ 0.1C: 32°F to 122°F (0°C to 50°C) Discharge @ 0.1C: -4°F to 122°F (-20°C to 50°C) Storage: -40°F to 122°F (-40°C to 50°C) (6 Months Max.) -4°F to 95°F (-20°C to 35°C) (2 Years Max.) Operating at extreme temperature will significantly effect service and cycle life. Cell Voltage 1.3 1.2 1.1 1.0 11 A (5.0C) 0.9 0 20 2.2 A (1.0C) 40 1.1A (0.5C) 60 80 Minutes of Discharge 100 120 IMPORTANT NOTICE This data sheet contains information specific to batteries manufactured at time of its publication. Please contact your Energizer representative for most current information. Contents herein do not constitute a warranty. Form No. EPS - 7104B