How often should the electrolyte level in nickel-cadmium batteries be checked?

The correct approach regarding checking the electrolyte level in nickel-cadmium batteries is to do so regularly and maintain the level above the plates. It is critical to ensure that the electrolyte covers the electrodes to prevent damage and maintain optimal performance.

Nickel-cadmium batteries operate on a principle where the electrolyte plays a vital role in facilitating the electrochemical reactions necessary for charging and discharging. When the electrolyte level is low, the exposed plates can become damaged, leading to reduced battery life and capacity. By regularly monitoring and maintaining the electrolyte level above the plates, one ensures that the battery functions effectively and safely, minimizing the risk of failure.

Regular checks also allow for timely adjustments to the electrolyte level, which can be influenced by factors such as evaporation, temperature variations, and the age of the battery. This practice is key in prolonging the battery's operational life and reliability in flight applications.