ORIGINAL: mstam1971
ORIGINAL: JoeAirPort
More than 4.8V packs can burn these things up.
Muah, running one at 5.8v 200+ flights zero issues. Rated 4.8-6v means more something like max 6.x for a short duration on a fully charged 5S NiMh.
You can run anything you want. Doesn't matter to me. I only run 4-cell NiMh.