Using your CNHL Ultra Black LiPo battery is easy. First, make sure your charger supports the 5C max charge rate of this battery. Connect the XT60 output connector to your drone and the JST/XH balance connector to the charger for proper charging. When flying, enjoy the high - performance provided by the 150C discharge rate. As for maintenance, store the battery in a cool and dry place. Avoid over - charging or over - discharging it, as this can damage the battery. Check the battery regularly for any signs of swelling or damage. If you notice any issues, stop using the battery immediately and replace it. With proper use and care, your battery will serve you well for a long time.