Using this CNHL Lipo battery is easy. First, make sure to connect the XT90 output connector properly to your device. When charging, don't exceed the 5C max charge rate to keep the battery safe. As for maintenance, store the battery in a cool and dry place. Avoid over - discharging the battery as it can damage its performance. Check the battery regularly for any signs of swelling or damage. If you notice any issues, stop using it immediately.