Need Help choosing a battery


New member
Hello, I am a high school student competing in the ULA student launch competition. My group and I are looking for help on choosing a battery for our drone. The battery needs to be light because the drone can not be heavier than 5 pounds (2.27 kg), it needs to power 4 motors, since were making a quadcopter, and since the drone needs to fit into a 6 inch diameter tube, causing the drone to be small, the battery should be small too.

Thank you for reading this and any help would be appreciated.