Drone Quadcopter UDI U818 (& U818A-1 Discovery) Easy DIY Mod for longer flight times - DroneTube
ThinCube
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New HD version of this ... ... Modify your Quadcopter (UDI U818A and U818A-1 Discovery) to accept a larger battery with longer flight times. Do it yourself (DIY) to make your Drone accept a larger battery and get longer fli
