What is the normal open circuit voltage for each nickel-cadmium cell?

The normal open circuit voltage for a nickel-cadmium (NiCd) cell is approximately 1.2 volts. This value is considered the standard output for a fully charged NiCd cell under normal operating conditions.

The characteristics of NiCd cells are such that they provide a stable voltage level during discharge, making them suitable for various applications, including rechargeable batteries in tools, cameras, and other electronic devices. The nominal voltage of 1.2 volts reflects the chemistry involved, where the electrochemical reactions in the cell produce this specific voltage.

Understanding that nickel-cadmium cells have a slightly lower voltage compared to some other types of cells, like alkaline batteries, which typically have a nominal voltage of 1.5 volts, helps clarify why the 1.2 volts figure is widely used in applications involving NiCd batteries. This distinction is important for ensuring compatibility in device operation and battery replacement.