Introduction
Uneven aging is a serious problem in large battery banks. One weak battery can reduce the performance and lifespan of the entire system.
Keywords: lead-acid battery imbalance, battery bank uneven aging, series parallel battery problems.
Why Uneven Aging Occurs
- Voltage imbalance in series strings
- Unequal current sharing in parallel groups
- Differences in internal resistance
- Localized temperature differences
Common Warning Signs
- Abnormal voltage deviation
- One battery overheating
- Frequent inverter alarms
- Reduced system backup time
Engineering Solutions
- Use identical batteries (same brand, model, batch)
- Maintain equal cable lengths
- Use copper busbars
- Install battery balancers
- Replace batteries as complete sets
Conclusion
Proper system design and monitoring are key to preventing uneven battery aging.
