Eveready Battery Company, Inc. 533 Maryville University Drive St. Louis, MO 63141 Telephone 1-800-383-7323 Internet: www.energizer.com Engineering Data D Rechargeable 1.2V Nickel-Cadmium Chemical System: Nickel-Cadmium (NiCd) ENERGIZER NO. CH50 Dimensions (mm) Millimeters 0.60 1.50 1.60 7.80 9.50 32.20 34.20 59.50 61.50 Inches 0.024 0.059 0.063 0.307 0.374 1.268 1.346 2.343 2.421 Designation:ANSI / NEDA-10013, IEC-KR35/82 Battery Voltage: 1.2 Volts Average Weight: 67 grams (2.4 oz.) Volume: 56.5 cubic centimeters (3.5 cubic inch) Terminals: Flat Contact Rated Capacity: (to 1.0 Volt): 1.8 Ah (Based on 360 mA (0.2C) discharge rate) Maximum Charge Rate: 540 mA Cell: One "sub C" in "D" size container Jacket: Plastic Label Internal resistance The internal resistance of the cell varies with state of charge, as follows: Cell Charged Cell 1/2 Discharged 20 milliohms 30 milliohms (Tolerance of ±20% applies to above values) AC Impedance (No Load) The impedance of the charged cell varies with frequency, as follows: Frequency (Hz) 50 1000 10000 TYPICAL DISCHARGE CHARACTERISTICS Average Performance at 21ºC (70ºF) Note: Above values based on AC current set at 1.0 ampere. Value tolerances are ±20% Cell Voltage 1.4 180 mA (0.1C) 1.3 Impedance (milliohms) (Charged Cell) 12 11 14 1.2 Operating and Storage Temperatures 1.1 360 mA (0.2C) 1.0 Ranges of temperature applicable to operation of the CH50 cells are: 0.9 0 2 4 6 8 10 12 Hours of Discharge 32ºF to 122ºF (0ºC to 50ºC) Charge @ 0.1C: Discharge @ 0.1C: – 4ºF to 122ºF (-20ºC to 50ºC) – 40ºF to 140ºF (-40ºC to 60ºC) (6 Months Max.) Storage: – 4ºF to 95ºF (-20ºC to 35ºC) (2 Years Max.) Operating at extreme temperature will significantly effect service and cycle life. TYPICAL DISCHARGE CHARACTERISTICS Average Performance at 21ºC (70ºF) Cell Voltage 1.4 900 mA (0.5C) 1.3 1.2 1.1 1.8A (1.0C) 9.0A (5.0C) 1.0 Important Notice 0.9 0 20 40 60 80 100 Minutes of Discharge Form No. EBC - 6104A 120 140 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.