Using this CR2450-NRV lithium battery is easy. Just connect it to your device through the solder tags. Make sure the device is powered off before installation. When handling the battery, avoid dropping it or exposing it to high temperatures. For long - term use, store the battery in a cool and dry place. If you notice any signs of damage like swelling or leakage, stop using the battery immediately and replace it. Regularly check the connections to ensure they are secure.