9 Volt Alkaline Battery Discharge Curve

9V. Classification: Alkaline. Chemical System: Zinc-Manganese Dioxide (Zn/
Nominal voltage. 9 V. Impedance. 1,700 m-ohm @ 1 kHz. Typical weight. 45 g (
A circuit that draws 10 ma powered by a 9 volt rectangular battery will operate about 50 hours: 500 mAh /10 mA 50 hours The cell voltage of alkaline cells steadily drops with usage from 1.54 volts to about 1 volt when discharged. The voltage is near 1.25 volts at the 50% discharge point.
IEC/JIS: 6LR61. ANSI: 1604A. Common: 9V. 2. Chemical system. Zn/KOH-H2/