I want to upgrade my Rx battery...

[DEX0807]

I need some help with a battery issue. I want to put my flight pack on 6 volts. I basically need to know the pros and cons of this.

My Gear is:
Tiger 50 with OS 50 SX-H
Futaba 7c with 3151 digital servos on everything but the throttle, throttle is 3003. (I know... I'm a poor heli flyer)
401 gyro

I want faster but cannot afford faster so my idea was to pump 'em some juice. Also could I get some ideas on where to look for good packs for reasonably prices. I'm not looking for the cheapest, just decent.

[BarracudaHockey]

Pros: slightly faster servos

Cons: less servo life.

Just an FYI but 3151's are the bottom of the digital servo barrel for a 50 and I wouldn't push them very hard.

EDIT 3151's arent rated for 6volts so unless you plan on buying a regulator as well I wouldn't try it.

[Gary O]

I've run 6v on a few of my machines and honestly, I don't think it's worth it. You have to step the voltage down for the tail servos anyway. Just wait until you can step up on the upper end servos and that right there will be a big difference.

[ClayK]

I run 3151's all around on my Raptor @ 4.8v

[DEX0807]

What I see is $80 to $110 per servo which is out of my budget. I can afford $50 for a battery though. So why run 6 volts? I've seen quite a few guys running it, so why do it if it isn't worth it? I have a bunch of 3003/3004 servos sitting around from my plank days, those are rated at 6 volts. Should I use those instead? I'm not into extreme 3d yet, so I try to save my cash for parts :lol:

[BarracudaHockey]

Well in any case unless you get a regulator I wouldn't run servos not rated for 6v with a 5 cell pack.

As for why they do it, I'd wager a bet that more than half the people doing it couldn't tell a good 5 volt system from a 6 volt system in flight if nobody told them which they were flying.

[BarracudaHockey]

9252s are 69 each, 9202s are good servos and even less, in the 50 dollar range. If you start throwing it around with those servos and crash you will likely spend more than or the same as the cost for decent servos.

That thing is CCPM so it does give you a little wiggle room torque wise.

Clay, 30 or 50?

[DEX0807]

Where are these available?

[Seeker]

I'm sure Ricks has them. www.ronlund.com

Probably most of the venders that advertise on this site will have them (maybe not the micro heli sites)

[DEX0807]

But now here is another question.... why buy the 9202s when they are just as fast as the ones I already have? Sure they have a little more torque but with CCPM I really dont need the torque. At least 2 servos move at the same time in any givin swash movement, elevator and collective use all three. So if my servos only run 42 oz then 42x3=126 oz. Basically what I'm getting from everybody is I need to look somewhere else to upgrade. (maybe a hyper? :glasses2:)

[ClayK]

9252s are 69 each, 9202s are good servos and even less, in the 50 dollar range. If you start throwing it around with those servos and crash you will likely spend more than or the same as the cost for decent servos.

That thing is CCPM so it does give you a little wiggle room torque wise.

Clay, 30 or 50?

50

There isn't quite the "snap" that the 9252's have, but she's still plenty fine to fly and learn on. Excellent "budget" learner".

[Seeker]

I picked up a 9252 today for my collective. This should be the first to go with the high speed right?

[BarracudaHockey]

Yep

[Seeker]

Who runs 4.8 volts on all 9252/9254 servos (nicd/nimh)?

I'm thinking of going to 5 cell packs... I cant afford the lipo on the bird yet.

The higher voltage would mean less of a voltage drop during high load manuvers.

If one does go to 5 cells... we need to drop it to 5.4 volts via a regulator right?

Thanks

[ClayK]

5.4 or 5.3. I do 5.3 on all my stuff. Mine are all regulated Duralite systems now. I haven't had a battery failsafe since putting them in.

[Seeker]

I dont have the 9Z so I've never seen battery failsafe but I'm not real comfortable putting in all digitals with my current 4 cell nimh pack.

I've looked at the duralite systems and I can't afford one yet.

Recomended regulator?

[BarracudaHockey]

I'd get a radio south switch safe regulator. That way when you are ready to step up to LiIon's you already have the regulator.
http://www.radiosouthrc.com

You also dont have to worry about a cheesy switch, if the switch fails on this thing the heli stays powered up.

[Seeker]

That looks pretty nice.

What's the difference between the dual regualtor and the non-dual one?

[ferincr]

I'm not real comfortable putting in all digitals with my current 4 cell nimh pack.
Why??
how many Mah are your packs???

[Seeker]

I run a JR 4400 MAH nimh pack... they are not sub C cells though. They are like long fat AA cells

[ferincr]

4400 AA??? (they might be "A")
I have a couple of 2500 A's and a couple of 4300 sub C's.
And I had no battery related problems yet (yes, I'm just learning and don't do any 3D)
Should I be worried about them?
I'm running 3-9252's, 1-9254, and a 3004 for the throttle (that I'll change it for a 3152 soon). All in a Raptor 60.

[BarracudaHockey]

That looks pretty nice.

What's the difference between the dual regualtor and the non-dual one?

Good question, I'll find out but I use the non dual ones, they are made by the same place that makes the Duralite regs here in Florida and AFAIK they are the same thing, they surely work fine, out of 5 setups of mine only one has the original Duralite regulator.

[BarracudaHockey]

As promised: The "dual" reg is for 2 battery packs and dual recievers like the large IMAC planes use.

[Seeker]

Thanks!