Using this GAONENG battery is easy. First, make sure your RC device is turned off. Connect the XT30 connector of the battery to the corresponding port on your device. Then you can power on your device and start using it. When charging, use a suitable charger and set the charge rate between 1C and 5C. Never over - charge the battery. As for maintenance, keep the battery in a cool and dry place. Avoid exposing it to high temperatures or direct sunlight. Check the battery regularly for any signs of damage like swelling or leakage. If you notice any issues, stop using the battery immediately.