Introduction
Depth of Discharge (DoD) indicates how much energy is drawn from a battery compared to its total capacity. Managing DoD properly is crucial for maximizing battery lifespan.
Keywords: depth of discharge, DoD in lead-acid battery, battery management, deep cycle
Understanding DoD
A 50% DoD means half of the battery’s energy has been used before recharging.
The deeper the discharge, the shorter the cycle life.
Recommended DoD Levels
- Backup Power: 20–30% DoD for long life
- Solar Systems: 50–70% DoD balance between performance and cost
- Deep Cycle Use: Up to 80% DoD acceptable for GEL/OPzV types
How to Manage DoD
- Use battery management systems (BMS) or smart chargers
- Monitor voltage and SOC in real-time
- Avoid complete discharges
Conclusion
Proper DoD control prevents premature aging and ensures your lead-acid battery performs efficiently throughout its service life.
