Is there anything speacial to chaging from 4.8v to 6.0v for the rx battery ?

Yes, you should get a charger that's appropriate for 6 volts. In addition, since a small number of servos are not supposed to be used with 6 volts, it's good to check before making the switch.

What Chuck said!!!

Ken

I was not aware of some servos not being able to be used on 6v. Hope I don't have any. I use futaba, hitech and spektrum

Mostly that concerns some digital servos. Just check the specs on the ones you are using, if they dont have a separate torque and speed listed for 6v then don't use them with a 5 cell pack.

Me nether, thats why I asked.
I have 5 s3004's and one Hitec 75 on retracts.
Will that be ok ??

that will be fine

Cool, thanks guy's

You're not using one but gyro's can also be sensitive to over voltage.

The next question will be 'What's a gyro? Some sort of sandwich?" (sorry Ken, I just couldn't resist that one).

Nah, that's a "hero".

I was talkgin to the lhs owner about jr 811 servos and that they didnt ahve 2 diffrent specs and said i wasnt sure if i could sue them on 6 volt he called up HH and they told him that ALL JR servos worked on 6 volts as well as 4.8

"To a New Yorker like you a hero is some kind of weird sandwich!!!!"

Quick, name the movie!!!!!

Ken

"To a New Yorker like you a hero is some kind of weird sandwich!!!!"

Quick, name the movie!!!!!

Ken


Kelly's Heroes??

kelly's heros oddball said it

Ding ding ding!!!!! We have a winner!!!!!!

Ken

Oh man, you guys are to fast!!! Us old folks need a little time to think that over.. [sm=spinnyeyes.gif]

*****

Old folks joke:


A little old lady was running up and down the halls in a nursing home. As she walked, she would flip up the hem of her nightgown and say "Supersex." She walked up to an elderly man in a wheelchair. Flipping her gown at him, she said, "Supersex."

He sat silently for a moment or two and finally answered, "I'll take the soup."

*****
Ba da bing

And, just to keep from being accused of hijacking this thread...

Some servo's do not say 6 volts but list 4.8 volts, as in the Hitec 55. The Futaba micro servo, on the other hand, shows both the 4.8 volt torque as well as the 6 volt torque. It just takes a little research to see what ones will do what. But, for the most part, most of the 'standard' servos can take both 4.8 and 6 volts. And, as noted above, some digitals specify the operating voltage... for a reason I'm sure.

As the voltage goes up the dead band gets narrower. Some digitals, specifically helicopter tail rotor servos like the 9253, 9254, 9251 and 9256 have a very narrow dead band and operate at a much higher frame rate (270hz or 333hz) when hooked to a gyro or rpm governorn vice the standard reciever output which is 70hz and will cause them to over heat and fail.

The servos operate faster and have more torque

Cheers
Pupmeister

Hitec specifically rates their servo specs for 4.8 AND 6.0 volts. I've used 6v packs for many, many years with no problems in World Expert, Futaba, Hitec, and FMA receivers and servos.

Dr.1

A few servos that are not spec'd by the manufacturer for 6 volts.
Hitec:[ul][*] HS-45HB[*] HS-50
[/ul]

Futaba:[ul][*] S9206[*] S3115[*] S3110[*] S3111[*] S3104[*] S9102[*] S136G[*] S9151[*] S.... the list goes on
[/ul]

Will they work if used? Perhaps, but is it worth burning out a servo and worse, losing a plane? The good news is most servos are ok on 6 volts. The simple solution is to just confirm that the ones being used are ok for 6 volts.