This is the second and third flight of my New skywalker. We did not change battery. It was still flying on 4S 3200mAh pack. This is just one awesome and perfect FPV machine. Takes up tons of load for its category and still cruises smooth on 1/3 throttle. Extra big space in its belly for all the FPV equipment, ample space under canopy for 3 big batteries and above the canopy spacious flat surface for FPV Camera and other stuff. Video Tx fits neatly before the prop and sits there for best video transmission. This is a perfect FPV machine and beginners plane. Comments and feedback welcome at [email protected] or [email protected] Don't forget to check and