RadioShack Engineering Data Sheet NiMH Battery Pack
Cat. No.: 23-270

Chemical System: Nickel-Metal Hydride
Configuration: 3 cells
Battery Voltage: 3.6 Volts
Capacity: 1200 mAh (Typical)
Average Weight: 66 grams (2.33 oz)

Discharge Cut-off Voltage: 0.9 Volts
Max Charging Voltage: 1.5 volts at 120 mA

Fast Charge:
Charge Current: 600 mA to 1200 mA (0.5 to 1 C)
Charge Control Termination: Recommended
- delta V: 0-5 mV
DT/dt (0.5-0.9C): 0.8°C / min
DT/dt (1C): 0.8 - 1°C / min
TCO: 45-50°C
Timer: 105% nominal input

Temperature Range:

    Standard Charging: 32 to 113° F (0 to 45° C)
    Fast Charging: 32 to 113° F (10 to 45° C)
    Discharging: -4 to 122° F (-20 to 50° C)
    Storage: -4 to 95° F (-20 to 35° C)

Internal Resistance

  • Full Charge: 22 milliohms
  • 1000 Hz: 18-28 milliohms

Service Life: >500 Cycles

NiMH Battery Pack



Low Rate Discharge
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Dimensions of Individual Batteries


High Rate Discharge
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Fast Charge (Charge control required)
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Specifications are typical; individual units might vary.
Specifications are subject to change and improvement without notice.


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