Keywords: OPzV battery sulfation, lead-acid gel battery, battery repair, performance degradation
Introduction
Sulfation is one of the most common causes of performance loss in OPzV (Valve Regulated Lead-Acid Gel) batteries. When left untreated, it can significantly reduce the capacity and lifespan of the battery. Understanding how sulfation forms and how to address it is key to maintaining long-lasting energy storage performance.
What Is Sulfation?
Sulfation occurs when lead sulfate (PbSO₄) crystals accumulate on the battery’s plates during discharge. In normal operation, these crystals dissolve during charging. However, when the battery remains undercharged for extended periods, the crystals harden and become difficult to reverse.
Impact on OPzV Batteries
- Reduced battery capacity and voltage output
- Increased internal resistance
- Poor charge acceptance and longer charging time
- Shortened overall service life
Prevention Tips
- Avoid leaving the battery in a discharged state for long periods
- Ensure regular equalization charging when recommended
- Maintain proper float voltage and temperature
Conclusion
Understanding sulfation is the first step toward effective maintenance and repair. By monitoring charge levels and preventing long-term undercharging, users can extend the life of OPzV batteries significantly.
