Hello dear customer, thank you for your support. The battery may take about 4.5 minutes to fly the drone, so a battery may need to be charged after 4.5 minutes of flight. However, the kit includes 4 rechargeable batteries, so you can use them alternately. Please note that the flight time depends on the flight environment and flight mode. Flight time is for reference only. If you have any other questions, just contact us in time. Beautiful day.