Yeah, plus the pure amps lipos put out will surely make your motor happy. You'll probably gain a significant amount of watts with a 20c 5 or 6000 mah 2s lipo. 300 deg. ouch, you mixed nicads with nimh? different mah as well??
Oh, I re-read the 7 cell 2400 nicad, my bad, I assumed nobody used nicad or 2400 for that matter anymore.
Yeah I'm not too happy about using Ni-Cd's but this one will be my last one. I just wanted to squeeze out every charge I could get out of the old cells, and I guess I did it. All of my other batteries are li-pos well, except for transmitter batteries (I'm looking into fixing that soon).