Proper storage of lithium batteries is important to maintain their performance and prolong their lifespan. Here are some guidelines to follow when storing lithium batteries long term:
1. Charge the Batteries: Before storing lithium batteries, ensure they are fully charged. A charge level between 40% to 60% is generally recommended for long-term storage. This helps prevent over-discharge or overcharge conditions during storage.
2. Choose a Cool and Dry Location: Store lithium batteries in a cool and dry place. Avoid exposing them to extreme temperatures, high humidity, or direct sunlight. Ideal storage temperatures range from 15°C to 25°C (59°F to 77°F).
3. Use a Fireproof Container: For an added safety measure, consider storing lithium batteries in a fireproof container. This can help contain any potential fires in case of a battery failure.
4. Disconnect or Isolate Batteries: If possible, disconnect the batteries from the devices they power. Alternatively, use isolation techniques like taping or covering the battery terminals to prevent unintentional discharge.
5. Check and Recharge Periodically: It is recommended to check the battery charge every three to six months and recharge them if needed. This helps prevent deep discharge and voltage drop, which can negatively impact battery performance.
6. Follow Manufacturer Guidelines: Always refer to the manufacturer's guidelines or recommendations for specific storage instructions. Different lithium battery chemistries and brands may have slightly different requirements.
By following these guidelines, you can help ensure that lithium batteries remain in good condition during long-term storage and are ready for use when needed.