LP-21700 FAQ
General Questions
Q: What's the difference between LP-21700 and 18650?
A: LP-21700 has larger capacity (5000mAh vs 2500mAh), larger size, and longer cycle life.
Q: Can I use a regular lithium battery charger?
A: No, you must use a LiFePO4 specific charger with different voltage.
Q: Is it normal for the battery to get warm?
A: Slight warming is normal. Stop charging if it becomes hot.
Technical Questions
Q: What's the maximum series connection?
A: Recommend up to 16 cells in series with BMS.
Q: How to check if battery is damaged?
A: Use a multimeter to measure internal resistance. If over 30mΩ, replacement may be needed.
Q: Should I store at full charge?
A: For long-term storage, maintain 45%~55% SOC (approx. 3.2V).
Safety Questions
Q: What if the battery catches fire?
A: Cut power immediately, use dry powder extinguisher or sand. Do not use water.
Q: Can batteries be shipped?
A: Batteries are dangerous goods and require special packaging per IATA regulations.