NIMH Cells amp output under load?

[Rtsbasic]

Running 2 packs in parallel would be a big problem in one or two of my cars, are you sure I could get away with 45a constant for a motor that draws similar amounts of power (if not a tad more) to a Feigao 540 6s? Just trying to make sure if I invest in packs for my car (and my friend is going to buy some in a few weeks for his car and new emaxx) they aren't going to swell or anything because the motor I use.

Thanks.