ORIGINAL: JohnBuckner
There will be no smoke letting of the Hs 422 or the 425 if you use five cell packs (6V) They are my all time favorite in an ordinary standard and in my opinion even more bomb proof than the comparable Futaba servo.
I have installed them literally by the hundreds and have been using nothing but (6) volt packs for well, a lot longer than 12 years. I guess two exceptions to that would be in some gasoline engines where the ignition required 4.8 and on a few controlline airplanes where I only used one throttle servo
Gee! you are the experienced one... Hundreds ?!?!?!
I am putting a life hobbico pack that is nominal 6.6, max 7,2 V fully charged but that does not last. Slightly higher voltage level than fully charged 5 cell (6v) packs for NiCd or Nimh.
According to these forums, nobody has had an issue with 6.6 V life packs with 6v servos.
Regardless of power pack, how often have you seen a 422 or 425bb fail?