Practical Guide to Long-Term Battery Storage: Keep It Like New

Lithium-ion batteries power our daily devices—smartphones, laptops, electric vehicles, and more. But when you need to store these batteries for months or years, improper storage can lead to performance loss, reduced lifespan, and safety hazards. This guide shares practical tips to help you store lithium-ion batteries for 6 months to 1 year (or longer) while keeping them in great condition.     Ideal Charge Level for Storage Storing batteries at 100% charge or fully discharged (0%) accelerates chemical degradation and reduces lifespan. The best charge level for long-term storage is between 40% and 60%. This reduces internal stress on electrodes and helps prevent deep discharge from natural self-discharge over time. Temperature and Environment High temperatures accelerate electrolyte degradation, while extreme cold reduces chemical activity. The ideal storage environment is a cool, dry place between 10°C and 25°C . Avoid storing batteries in places like car...