Using this battery is easy. Just insert it into your device according to the polarity markings. When charging, use a compatible charger. Make sure not to over - charge the battery as it may reduce its lifespan. Keep the battery in a cool, dry place. If it's not going to be used for a long time, store it at about 40% charge. Regularly check the battery for any signs of damage, like swelling or leakage. If you notice any issues, stop using it immediately.