Originally Posted by
TheZoof
Shawn - Actually you are incorrect. If the C rating is correct then the reason for the higher value is lower internal resistance. Which will increase the consumption rate. If you calculate the internal resistance then the voltage should be at a slightly higher rate giving more power. More power on identical battery capacities means the higher C rating pack will discharge faster.
We are talking a minor amount of course that I wouldn't worry about. If the C rating IS HIGHER(not fudged numbers) then the higher the C rating the more punch and better the pack should be.
You can find more information here -
http://en.wikipedia.org/wiki/Internal_resistance
Only true assuming your system can pull that higher c rating. example. if a motor can only pull 25c then the runtime on a 5000mah 40c battery will last as long as a 65c 5000mah battery. If that motor can pull over the 40c rating on the same two packs the runtime would decrease. I doubt the difference would be a whole lot in racing though. How often are our motors pulling their max capacity? Not much or we would be melting wires and speed controls.