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Yep, got it in one. Unfortunately due to lightning strike taking out infrastructure in the last half hour I have to shelve this project for an unknown period of time. I sincerely thank you all for your help. I really appreciate it.

Honestly, nothing fishy, just completely new to this type of power consumption. I usually deal with ultra rapid rotators (stars), not really fast spinning motors. :)

Ok, thanks. I've got it sorted. It was the battery after all. Connected a decent rc battery and everything went very well. Battery tech isnt my thing (I'm an astrophysicist). Thanks very much for the help, you helped me track down the issue. REALLY appreciated.

Thats probably the best hint anyone could have given me :) I remembered I had some SLAs out the back, powered it up. Had the same issue but it lasted much longer before the motors powered down so I can conclude that indeed, it is not a car. Thanks mate, I owe you a beer :)

Like every man and his dog I'm building my own quadcopter. To get the basics running I'm using a piece of code I got from an instructables page: http://www.instructables.com/id/ESC-Programming-on-Arduino-Hobbyking-ESC/ All I've really done is quadruple the send to motor bit. As a power supply...

First post, so I apologise if I do anything wrong here. Right then. As with many people you guys probably get here, I'm attempting build a quad. You've probably seen the rough idea before, ESC connected to arduino, that kind of thing. I purchased these cheap ESC off ebay a few months ago, and...