Using this CNHL battery is easy. First, make sure to connect the XT90 output connector properly to your device. When charging, use a charger that can support up to 5C charge rate. Remember, the burst discharge rate of 80C is for short - term use only. For safety, don't over - charge or over - discharge the battery. Store it in a cool, dry place and keep it away from direct sunlight and heat sources. Check the connectors regularly for any signs of damage or corrosion. If you notice any issues, stop using the battery immediately.