Iron-nickel batteries are known for their endurance, but how do they perform in terms of efficiency and power delivery?
Performance Highlights:
- Energy Density: ~50 Wh/kg (lower than lithium-ion but better than lead-acid).
- Cycle Life: 2,000–3,000 cycles, significantly higher than most battery types.
- Charge/Discharge Efficiency: ~65–80%, which is lower than lithium-ion (~90%).
- Self-Discharge Rate: ~20–30% per month, higher than many modern batteries.
Limitations:
- Voltage Depression (Memory Effect): If not fully discharged occasionally, they may exhibit reduced capacity.
- Maintenance Requirements: Regular electrolyte replacement is needed.
Despite these drawbacks, their long lifespan and ruggedness make them ideal for backup power and industrial uses.
