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Many buyers unknowingly choose the wrong LiFePO₄ battery due to focusing on price rather than performance. Below are common mistakes to avoid.
1. Underestimating BMS Quality
A low-quality BMS may lead to:
- Cell imbalance
- Overheating
- Fast degradation
- System shutdown
Ensure your BMS supports:
- CAN/RS485 communication
- High-temp and low-temp protection
- Accurate SOC estimation
2. Choosing Based Only on Price
Low-cost batteries often use:
- Grade B or recycled cells
- Weak welding
- Low-precision BMS components
Cheap batteries cause:
- Early failure
- Safety risks
- Warranty issues
3. Ignoring Inverter Compatibility
Battery and inverter voltage mismatch may lead to:
- System shutdown
- Charging failure
- Shorter lifespan
Always check:
- Voltage compatibility
- Max current
- Battery communication protocols
4. Choosing Low-Voltage Batteries for High-Power Loads
12V systems are not suitable for:
- Whole-house backup
- Industrial loads
- High-power solar systems
Higher voltage systems are safer and more efficient.
5. Not Considering Temperature Environment
LiFePO₄ cannot charge below 0°C without heating.
Choose batteries with:
- Low-temperature charging protection
- Heating pad options
Conclusion
Avoiding these mistakes protects your investment and ensures reliable ESS performance.