Can Equalization Charging Help Recondition Old Batteries?

What is Equalization Charging?

Equalization Charging, also known as EQ, is a process that balances the state of charge between individual cells in a battery bank. This is essential for deep cycle batteries, which are prone to stratification and sulfation. EQ involves applying a higher voltage than the normal charging rate to each cell, which helps to equalize the charge and prevent any single cell from overcharging.

Benefits of EQ for Old Batteries

EQ can help to recondition old batteries by restoring their capacity and preventing further degradation. When a battery ages, the electrolyte can become stratified, causing some cells to become overcharged and others to become undercharged. EQ helps to redistribute the charge and restore the battery’s original capacity. In some cases, EQ can even revive batteries that are nearing the end of their life.

Techniques for Effective EQ

To effectively EQ old batteries, it’s essential to follow a specific procedure. First, the battery should be disconnected from the system and isolated. Next, the EQ current should be applied for a set period of time, typically 2-4 hours. The EQ current should be 10-20% higher than the normal charging rate, and it’s essential to monitor the battery’s voltage and temperature during the EQ process. It’s also crucial to use a high-quality EQ charger that can deliver a consistent and controlled voltage.