I figured that if the Mamba Max can handle 4s lipos if you cut the bec, it might be possible to run the mamba micro on 4s if you do the same thing? I know it out of spec´s since it´s only rated for 3s but the mamba max is only rated for 3s aswell
Well, if this is the ESC you are talking about, I would say yes. It is rated for 12 NiMH cells, which is VERY close to 4s lipo voltages. I'm sure the "official" CC statement will be no, but as long as you disable the BEC, I'd bet it would work fine.