Dear sir/madam, I am lokking at a drone for my son. I have some questions about 2 drones: Kvadrokoptéra Fleg - M62 - Dron | and the Quadcopter Dromida Verso GG Inversion RTF . How is it with the batteries in the drone. It flies for 5 min. and than you have to charge the battery again?? Is their a possibility to buy a spare battery and have it charge so he can enjoy it longer?? Thanks for your answer. Etienne van Sas +420 777 275 654