Some ESC's have crappy BEC's (Hydra 240LV for example). So you have to use seperate battery to power the Receiver. Disconnect red wire coming from ESC before plugging into receiver to disenable internal BEC. Then plug receiver battery into B port (Battery) of receiver
I like the lower 6v voltage of A123 cells. The higher voltage of 7v lipo receiver packs needs servo rated for higher voltage.
Comment