How often should equalizing charge be performed to balance the terminal voltage of a used battery?

Equalizing charge is an important maintenance procedure for lead-acid batteries, particularly in industrial settings where forklifts and other equipment rely on these power sources. This process serves to balance the terminal voltage of the individual cells within a battery pack, which can become imbalanced due to factors like varying charge and discharge rates, temperature differences, and usage patterns.

The correct interval for performing an equalizing charge is typically every month. This timeframe allows for adequately balancing the cells while also preventing potential overcharging or excessive gassing that could damage the battery. Performing this maintenance at monthly intervals ensures that all cells are kept in good condition, promoting longer battery life and optimal performance.

A shorter interval, such as weekly or bi-weekly, may lead to excessive maintenance without significant benefits, while performing equalizing charges every few months could result in significant imbalances that can adversely affect battery performance and lifespan. Thus, a monthly schedule strikes a balance between rigorous maintenance and practicality, making it the best choice for ensuring the reliability and longevity of the battery.