OPzV batteries require a precise charging profile to ensure proper operation and longevity. The standard profile includes:
- Bulk Stage: The charger delivers maximum current until the battery reaches the absorption voltage (2.35V-2.40V per cell).
- Absorption Stage: The voltage is held constant while the current gradually decreases as the battery reaches full charge.
- Float Stage: The voltage is reduced to a maintenance level (2.25V-2.30V per cell) to prevent overcharging and maintain full charge.
Using a charger that follows this profile is essential for optimal battery performance.