I get around an hour runtime on a single pack in my revo, my setup is: TrueRc 8Ah lipo with Neu 1515 1y motor and quark 125 esc. I have an average amp draw of 10.16 amps; it is probably lower though because this was taken from an eagletree graph where I tried to get the highest amp draw possible to really see what kind of numbers my lipos put out... BTW BrianG, what was the math again to see how much runtime you would get?(ex: 8Ah lipo, you draw 10amps average, you get X runtime)??????

Bye