Common Lithium Battery Faults and Troubleshooting Tips

While lithium batteries are generally reliable, occasional issues can arise, particularly with improper use or aging. Common faults include reduced battery capacity, swelling, overheating, and failure to charge. Capacity degradation often occurs over time as the battery reaches its cycle limit, but it can be accelerated by excessive heat, overcharging, or deep discharging. Swelling is usually a result of internal gas buildup due to electrolyte decomposition and indicates that the battery may need replacement. If a battery fails to charge, it could be due to a faulty charger, damaged battery management system (BMS), or degraded cells. For overheating issues, checking for adequate ventilation and ensuring the battery isn’t exposed to extreme temperatures can help prevent further damage. Proper storage and regular maintenance can also prolong battery life. Consulting with a professional for persistent or severe faults is advisable to avoid potential safety hazards.