9V 4.5A UBEC 2-5S Lipoly (6-23v)

 FPVking 366 points

Good to see these specs, thanks.

 Jon 16 points

However, I do see a potential use of this in JR transmitters... Jon H

 gsnflyt 123 points

Yeah, great idea Jon H.

JR has stated to not use 3-cell lipos in their TX's so this would probably be a great solution.

Greg H.

 jool2metz 998 points

this bec is not made for servos

but for other apply

on FPV , the receiver video work sometimes on 9v

with this bec , and big 3S lipo , you can use it for 9v constant

Kilowatt-rc

 AdMan 47 points

I have a Dualsky 2500mah transmitter lipo battery in my JR 9XII with 2.4ghz module. My dad has one also in his DSX9/9303. I havnt had a problem with mine. Had a slight hiccup with his, but its working perfectly now with lipo tx batts. :) So it works... *)

 FPVking 366 points

Hard to belive but maybe this thingy aslo upconvert 7,4 to 9? It would be so NASA!

 Luke 58 points

The spec says that it uses a switch mode design, therefore the input voltage can be smaller than the output voltage.

 Lucian 2379 points

Luke, the switching mode is another story. You may go, study a little.

 Luke 58 points

Lucian, are you trying to be funny?
Maybe you don't know how to read a specification?
It states, Input voltage. From 6V to 23V. Output Voltage, 9V.
I'm not the one that need to study.

 Lucian 2379 points

No Luke, I'm trying just to put you at your place, your switching mode answer was out of context. That's the problem, the specification states wrong input, I raised a flag. Consider this: "voltage drops" (unless a voltage multiplier).

 Lucian 2379 points

...or a converter.

 Luke 58 points

Lucian, it is obvoius that you know nothing about how switch mode regulators work.
I suggest you do some research before trying to give technical advice in the future.

 Lucian 2379 points

Tell you what, lad, since you're not willing to do your homework. Google this: "In the event that the Input voltage falls below the desired output voltage, the BEC output is essentially equal to the Input level. BEC cannot output more voltage than the battery it draws from." You will find a CastleCreations 10A/5-9Vout/5-25Vin BEC. Why this one, here, be more special? It's not a sepic nor a split-pi, it's just a few dollars BEC.

 okelly 5 points

Sorry Lucian, you are in the wrong on this one. SMPS can be used to step up the voltage vave a look here: www.link

 Deman 31 points

Anyone bought one and tested it? Yes its possible to get more out than you put in but it must have a boost converter or sepic. So get one and put it on the bench then post the results. If it does boost the output its a bargain!

 Deman 31 points

This answer posted from the other 9v UBEC listed its 2.5 amp, posted by rustynail
" I bought this since it had been described as running on 2S (6V-8.4V) and delivering 9V regulated DC - at least this is what I thought reading the description. Well at least mine doesn't up-convert. The output voltage is ~10V with an input voltage of larger than 11V. Once the input voltage drops below 11V then the output voltage goes down as well (aprox. by the same margin). When input reaches ~4V output goes down to 0V. Now I have the same question: what to do with it as it seems to supply regulated nominal voltage for 3S (fully charged) up to 6S?"

so I guess that answers it it an SBEC without boost convertor or sepic. If the voltage is lower than the intended 9v it will only pass through the lower voltage. Still a scientific test would be better. Anyway either one looks a good for a FPV camera.