Sulfation is a common failure mode in lead-acid batteries, where lead sulfate crystals form on the plates, reducing capacity and performance. Preventing sulfation is key to maximizing the lifespan of OPzS batteries.
1. Causes of Sulfation
- Undercharging: Prolonged low charge levels allow lead sulfate to crystallize.
- Deep discharge without proper recharging: Extended time in a discharged state leads to hard sulfation.
- Improper storage: Leaving batteries uncharged for long periods accelerates sulfation.
2. Solutions to Prevent Sulfation
- Regular equalization charging: Apply 2.50V per cell every 3–6 months to dissolve sulfate buildup.
- Ensure full charge cycles: Avoid partial charging and allow complete charge cycles regularly.
- Use pulse desulfation chargers: Some chargers apply pulse currents to break down sulfate crystals.
- Monitor charge voltage: Prevent undercharging by ensuring correct float and boost charge voltages.
