yeah, i tried a 1750kv bell type that i had and it's doing the same thing. i might have fried the ESC now that i think of it. the 1750 brushless that the ESC came with is 7.4v for 2 cell lipos and the new one is 11.1v 3-cell. i don't know too much about the ESC i'd have to check when i get home.

i'm still trying to learn about ESC's and what the differences are. But as long as it can handle the AMPs the battery puts off and the number of cells i assumed it be alright. the only other motor i have is brushed but the two brushless' i've hooked up to the ESC have worked and then went out.

what type of ESC would you recommend for the hacker A20, 4-12A continuous, 15A max and an apogee 3-cell 11.1v 10A 15A max?