Driving an electric rig....you go into it knowing that the run times are dependent on what type of batteries that you own and use. That is why some guys will "build a supply" of battery packs so they have no down time.....other than allowing the motor to cool to keep from damaging it. We would do the same for our nitro engines if running them on a hot day in the summer time. In cooler temps....as in winter time....of course the electric motors still get hot....but obviously not as hot as in summertime. I think it's just good sense to let em cool so they can last their intended life time.