Originally Posted by
duuuuuuuude
Remember that a fully charged 2s lipo carries 8.4v. A servo or rx that can't handle that much voltage will go poof.
A bec is a safer, less hassle free way to go.
A BEC isn't necessarily safer. If/When it fails all your stuff will fry if it's not HV rated. Running a separate lipo with HV equipment all but guarantees that there won't be a failure do to over voltage, etc... I had a BEC fail and watched the servo and ESC meltdown as I tried to unplug the 4s battery as fast as I could. Surprisingly, the receiver was/is fine.