Align 2-1 1900mAh Raptor 50

[connoleg]

Hi guys,

I am just fitting an Align 2-1 / 1900mAh Lipo to my Raptor for the remote glow function plus I needed a new flight battery anyway. My question is do I need to step down the voltage for my servos/gyro?

The Raptor has 9252's on collective, 9001 on throttle, 9254/401 on tail and an AR7000 Spektrum receiver.

Can you please advise what I need to do?

Btw I did momentary switch on the 2-1 with the servos connected....have I fecked em?

TIA
Gary

[Leebert]

Hi,
All except your throttle servo are not rated for 6 volts on the Futaba website.

Having said that, a fully charged 4.8v nicad will be way over 5 volts. I would get an Align (or similar) 5.1v voltage dropper for the gyro and 9254 but run the rest on the regulator direct.

http://www.fast-lad.co.uk/store/k103...or-p-1888.html

BTW, I suspect you have done no damage at all by briefly switching on. Some do run the 401/9254 on 6v too but they don't last as long.

[Guest]

Put a stepdown between your gyro and 9254 servo
The other servos should be ok, although the 9252 is not recommended at 6v
The Align2in1 output is 5.8v

I get about 4 to 6 flights with mine

[connoleg]

Thanks guys...would it be better to put the stepdown between the 2-1 and the receiver so whole lot is 4.8v?

[SRH990]

Thanks guys...would it be better to put the stepdown between the 2-1 and the receiver so whole lot is 4.8v?

No, if you do this then nothing will work as the stepdown isn't rated to carry the current for all the servos, there is one that is but I'd just use the standard one between the gyro & servo, there are loads of people running 9252's straight off the Align regulator without any problems. As Leebert says, the 9254 will run on 5.8V regulated but it will reduce its life and they can be short enough as it is, most tail servos need the stepdown 9254,8700g,8900g etc.

[connoleg]

cheers guys, thats what I'll do. I just need to find a stockist near to Cheshunt, Herts that has one I can go and get as I'm due to be flying Friday afternoon.

_____
Gary

[jiberjaber]

K10381TA is the two-way step down to 5.1V which will allow you to put it in line with your reciever.

http://www.realraptors.co.uk/zen-car...oducts_id=2373

Not had any problems with mine in this configuration.

[Andy from Sandy]

All of the information on the Futaba website seems to always be referring to Ni-Cd packs, not Li-Po and regulators. Therefore when they say a device is rated at 4.8 volts they mean 4 cells. When they rate something at 6 volts I beleive they mean it will work quite happily on a 5 cell pack. Myself and others at my club use GY401, all CSM stuff, GY611, 9252, 9255, 9650, (Duncan only) 9256, and whole host of JR servos on 5.8 volt regulated without any problems.

If the tail servo needs less then the drop-down goes on its lead only.

[jamiem]

i have 9255's and a 9254 running off my align 6v reg, and its been good as gold for the past 8 gallons no step downs here...

[connoleg]

So it sounds like I could fly as is, but to prolong the life of the 9253 I should order the step down as soon as possible and put that on just on the 401 to servo lead?

???

cheers
Gary

[connoleg]

So it sounds like I could fly as is, but to prolong the life of the 9253 I should order the step down as soon as possible and put that on just on the 401 to servo lead?

sorry to be paranoid...can someone confirm the above

[robgt]

I know people who have run the 9254 (thats the one you first mentioned?) at 6 volts for a long time on their heli's without a problem.
It's not rated for that though, so the safest route would be to put a step down between the gyro and the servo - to run it at the prescribed voltage.

Cheers,
Rob

[connoleg]

That was a typo...its definately a 9253

[robgt]

It seems the 9253 is rated the same as the 9254 - but that obviously doesn't mean it will definitely work in the same way (accepting 6 volts as the 9254 does) - I don't know about the 9253 from a 6 volt perspective, so couldn't advise you one way or the other.

I suspect it would work the same as the 9254, but that's speculation rather than informed opinion.

Unless you've heard of others using it on 6 volts without issue, I would be inclined to get the step down before using it, just to protect the investment.

Cheers,
Rob

[BobJ]

Hi

I run 9254 servo's on the throttle on 6V (duralite regulator) and 5.8V (Align regulator) and have done for a few years withno issue.
The issue is the gyro will keep the servo so busy that it will overheat and wear out quicker so it is the combination of the gyro plus servo that causes the problem, use a step down from 6/5.8v always with a tail servo.

Cheers
Bob J