[rschoi_75]

If it really does do 53amps constant, then it may be ok. But the problem is, you won't know for sure until you buy them since they are most likely an oem brand. On a side note, I use lipos of similar specs in my mini's... I'm not sure if I'd be comfortable with those in a crt.5. But I know people have run 2500mah lipos with success, so as long as your motor is mild enough not to puff the lipos, it may work.

If you're on a budget, why not get the Protek lipos from amain?