Voltage depression, often confused with the memory effect, is another common issue that affects Ni-Cd batteries. This problem results in a drop in output voltage even when the battery is still capable of holding a significant charge.
Causes of Voltage Depression
Voltage depression typically occurs due to prolonged overcharging, incorrect charging methods, or the buildup of crystalline structures on the battery plates. This issue leads to reduced efficiency and performance in battery-powered devices.
Solutions and Prevention
- Avoid Overcharging: Using a charger with automatic cut-off can prevent voltage depression caused by prolonged overcharging.
- Charge at Recommended Rates: Slow charging at the manufacturer-recommended rate prevents excessive heat buildup and voltage drop.
- Equalization Charging: Occasionally applying a controlled overcharge helps break down crystalline formations and restore battery performance.
