Introduction
LiFePO₄ batteries are often stored for months before installation, especially in overseas shipping and project-based procurement. Improper storage conditions can cause performance degradation even before first use.
1. Capacity Loss After Long Storage
Why It Happens
- Self-discharge over extended periods
- BMS standby consumption
- Storage at full or empty SOC
Best Practice
- Store at 40–60% SOC
- Recharge every 3–6 months
- Disconnect external loads
2. Battery Will Not Wake Up After Storage
Some users report LiFePO₄ batteries failing to power on after long storage.
Causes
- Deep self-discharge triggering BMS sleep mode
- Cell voltage falling below recovery threshold
Solutions
- Use a low-current pre-charge function
- Follow manufacturer activation procedures
3. Temperature Effects During Storage
- High temperatures accelerate aging
- Extremely low temperatures may damage internal components
Recommended Storage Conditions:
- Temperature: 10–25°C
- Dry, well-ventilated environment
Conclusion
Proper storage is essential to preserve LiFePO₄ battery performance. Following correct SOC and temperature guidelines can prevent irreversible damage.