[crazyjr]

Is it possible that the batteries are responsible for the efficiency? The poster is running turningy 5200 30c 6s and his friend has a Thunderpower 3850 65c, and the poster says the cells in his are getting puffy. I think it could be the higher c rating and the higher quality packs used adding to the efficiency. Looking at the c rating alone, I see it as sort of a resistance to discharge, as well as a show of handling of the load. higher c rating, to me, means to some extent longer runtime per mah, 156 amps(30c) verses 250.25 (65c) shows me the 3850 should run longer than the 5200 anyways