I use these cheapo's in my 1/2A Lil Speedy thus far after many flights over 100mph no issues.

http://www.ebay.com/itm/1x-Micro-9g-...id=p5731.m3795

Just 9g as I recall bit more than that really with the wires.

• 1.6 kg / 56.4oz @ 6.0v