Using this CR2354 lithium battery is easy. First, make sure your circuit board is powered off. Then, carefully attach the battery with the solder tags to the appropriate spots on the board for horizontal mounting. When handling the battery, avoid dropping it or exposing it to extreme temperatures. Store it in a cool, dry place. If you notice any signs of damage like leakage or swelling, stop using the battery immediately and replace it. To maintain its performance, don't over - discharge the battery. And remember, proper disposal of old batteries is important to protect the environment.