First issue, battery not connecting with pins that power the receiver. How do you keep these clean and a good connection? After loosing connection the quad it went into failsafe mode and flew down and clipped the house flipping upside down on the ground with the motors running at nearly full throttle. The only way to stop it was pull the battery out. Connected quad to the DJI assistant and did all the checks and reset everything. Now the motors do not time out. The motors will run for ever sitting on the ground. They don't time out and turn off.