Rx Power Supply

[andys]

Hi
what do you guys do for RX power?

HV-UBec?
Regulator + lipo?
NiCads?

what do you concider the best for performance wise?

thanks

Andy

[ChrisS]

Yup, that's pretty much the choice open to you and all three will work.
Advantages/disadvantages?

BEC=lightest/simplest (no switch needed), do fail from time to time but always seem to do it on ground.

Regulator+Lipos=next lightest, highest complexity but seem to be reliable, require special attention when charging due to battery chemistry.

4 cell battery=heaviest option but time proven robustness and least complexity. Also can source highest current of the three options.

I myself am leaning back to 4 cell battery packs after several years of using BEC's for simplicity. I have never tried the LiPo/regulator thing, this just seems an odd thing to do on an electric helicopter...dunno, might just be me.

Chris

[PDC]

And the newest combination..... if you use KO 7.2v servo´s you can use 2xlipo as a direct power source for those servo´s in combination with a regulator for the receiver and gyro.....So max watts here for the servo´s.

[tnreefguy]

I use regular NiMh 4cells 3000mah. I get about 6 flights out of mine. Plus it makes my balance just right.

[fitenfyr]

Arizona regulator and Relions.

Haven't failed me so far.

Not too heavy, but the regulator is kind of a PITA to fit on the Ion-X.
It fits, but you have to tinker for a bit to get it strapped down well.

I have been running it on 6v to the servos and it is really nice and crisp.
I am going to run the Benzin on 5.5v and see if there is any difference. I figure it is easier on the servos than running at 6v.

I am too chicken to run a UBEC. I have one, but I can't identify what amp it is. I got it second hand with a controller and I think it is the higher voltage.
Anybody know how to tell?

[mhn]

Same combi and exact same comments as Fitenfyr.
I run the 8301 servos on 5.5v

MHN

[Tabbytabb]

Redundant UBECs on my birds for hundreds of flights with no problems.

No fuss, no muss, just charge the flight packs and go fly.


Tabb

[WillJames]

Redundant UBECs on my birds for hundreds of flights with no problems.


Interesting. DO you just plug both into a channel or do they Y together or how do you do it Tabb. Thanks in advance.

:smokin:

[Darren S]

i use a Duralite 5.3 V regulator with a heavy duty switch along with TP 2100 2 cell lipo.

so far no problems. i like the separate rx pack as i can adjust and make setup changes without the big 8000 prolites in place.

the 2100 is a bit much in hind site, but it's easy to get at and i recharge it frequently. 5 flights and i put back in about 600-700 mah.

[Tabbytabb]

Will, Koolflight will actually make you a custom redundant setup for somewhere around 80 bucks if I recall correctly. You cant just plug both in to the receiver or a Y connector since there needs to be a diode when running 2 of them hooked in parallel.

This is on cameraships carrying expensive gear though, I would just use a single UBEC on a sport ship. I have had really great luck with them so far

Tabb

[thangd]

I am using the UBEC-HV on my ION, but I just run it from one of the 5S pack, I have UBEC-HV failed (cap pop) on the ground, because at the time I was running from 10S. Since then I had no issue with UBEC.

Thang

[mudbogger2]

I have been running a HV UBEC on 10S in a Logo 14 for almost a year now. Never had any problems with it. I plan on using one on My ION. Hope to test it out this weekend.

[WillJames]

Youa re goign to love the Ion Jon!!

Hope to see and fly with you soon!!

[skippy]

Jon,

You can’t go wrong with the UBEC-HV. One thing I would like to suggest is operating the UBEC-HV off only one pack, this has a few advantages. You can power up the heli without enabling the speed controller. This allows you to test all servos with out power enabled to the motor. Then you can carry the heli to you take off point and enable the speed control (Plug in second battery).

I have over 200 documented flights on my ION with the U-BEC and no problems so far.

[PDC]

I have more than 100 flights with UBEC on my E-Raptor 50 on 10S and Futaba digital servo´s with no problems at all. Dont know if I want to use UBEC on my Ion-X and Joker 2.
Maybe I will be using 7.2V servo´s direct on a 2s lipo battery, havent decided yet which way I will go.
I like not to have a receiver battery to charge, think it is temptating to use the main battery on a e-heli, especially if it is possible to use 2xUBEC connected to each their battery.

Would like to hear some more about this 2xUBEC to the same receiver...will that mean that I have double the amps for the servo´s aswell? any website where I can order a 2xUBEC setup?

Thanks!

Paul

[WillJames]

Would like to hear some more about this 2xUBEC to the same receiver...will that mean that I have double the amps for the servo´s aswell? any website where I can order a 2xUBEC setup?


Me to. Sounds like a cool setup. I am running 4 Cell 1660 LiPo's now as I was a little afraid of the UBEC on this expensive of a machine. I to ran the UBEC on my R50E for 32 flights trouble free until I sold it. It is back to a glow mess machine now.

[Laurens]

Sounds more like you'll have twice the voltage, which will kill your Rx.

[PDC]

Sounds more like you'll have twice the voltage, which will kill your Rx.

I dont plan to make a 2S setup with UBEC´s :D

[Laurens]

Oops I think I learned too much electrics for school... Got me all confused.

[Tabbytabb]

guys, the Dual UBEC setup is basically 2 UBEC units in parallel so you have 2 power leads going into your RX. In theory this should double the amount of current you can draw safely although I have never overloaded a single UBEC.

It is a special order unit from Koolflight and they will make them to whatever voltage you need.

I think it was around 85 bucks but it was a while ago so I could be wrong

I included a shot of it on one of my jokers

Tabb

[PDC]

Thanks a lot tabbytabb, I will order a kit now and test it.

Guess one can connect the UBEC´s to each their battery to provide extra safety. Then each UBEC could also be tested at each flight by alternating plugging in left and right battery as the first battery to be connected.
Also one can wait with connecting the second battery (and UBEC) until at the helipad to delay the time where the motor is powered up as much as possible.

Merry Christmas

Paul

http://www.koolflightsystems.com/ultimatebec.htm

[PDC]

Hi again!

Just ordered this setup aswell

http://ercmarket.com/eshop/product.php?productid=14204

Then we will see how this works....think this KO servo´s will be quick on a eccpm setup :twisted: :twisted: :twisted:

guess I can use the KO servos as a fast and strong tail servo aswell

[PDC]

Got this message today.

-----------------------------------------

Paul

the best is to use the servos with the regulator with 2 lipos or Lithium IOn cells
yes the servos are superb. they are amazingly fast, and it will be surprizing the way CCPm work with them


Kind Regards - Cordialement - Met vriendelijke groeten
www.eRCMarket.com - R/C Hobby Distribution
Mr. Alexander Shaposhnik
Email : Sales@rcmarket.org
Address :Van Immerseellaan 13
Meise 1860 . Belgium
Tel +32 4860 59438
Fax +32 4868 14388

[Tabbytabb]

Paul, Dont connect one UBEC to Each battery pack or you will have a common ground and a serious problem as in expensive stuff will get ruined :(


Tabb

[PDC]

Thanks for the warning Tabb! I will not connect them to each battery then.

Still waiting for a reply from koolflight.

Thanks!

- Paul