Power your receiver and servos with the baddest of UBEC power solutions. The all new Turnigy 15 is an advanced switching DC-DC regulator which will supply a constant 8A or more with short bursts of up to 15amps! The Turnigy UBEC plugs into a 2 or 3 Cell Lipoly pack and supplies a constant 5 or 6v to your receiver. Voltage status indicator lights on the pack show whether your 2 or 3 cell pack is Full, half charged or low. An excellent safety feature! The system includes an anti-short circuit and overheat function with a thin metal shield cover, reducing noise Also included is an Output filter to reduce noise, an on/off switch and a step down regulator adapter.
Spec. Output (Constant): 5v/8A or 6v/8A Input: 6v-12.6v (2-3cell lipo) Size: 42x39x9mm Weight: 34g Quiescent current: 60mA Type: Switching, however because of the noise reduction (thin metal case & filter) this unit gives the same noise as a Linear BEC.
LED indicator (2 or 3 cell) Full : 7.8~8.4v / 11.7v~12.6v Incrimenting down to; 5.4~6.6v / <9.9v
I have used one for several months and works great, bought a second one a few weeks ago and used it only for a few minutes till now, it works fine, i dont want to think its luck, because i want to buy more of them!!!
bought this for skywalker (including flaps). Tested with no load and burned out after the first few times it was turned on. It also took out the receiver. I don't know what happened! The led light indicators turn on, but no output on either of the connectors. Tested the Corona FASST reciever with another working UBEC and not going either. Could this thing have taken out the receiver somehow?
anything is possible.... not familiar with your system, but a voltage surge may have damaged the receiver. Suggest trying the manufactures recommended battery pack and another receiver. Process of elimination.
Bought one half a year ago - works great and still works.
Bought two more a month ago and got them last week...
One died after some 30 seconds
One survived some minutes
Neighter of them was over loaded.
One had just a reciever connected and the other nothing.
This looked quite promising. I bought it last year. I was going to use it in my FPV planes but decided not to since the voltage seemed quite variable every time I connected it. I was using it on odd occasions to power up receivers for testing. I just used it as of writing and its almost burned up and I got a telemetry receiver voltage warning. It got very hot, too hot to touch. It could have been a Chinese poor QC issue but I wouldn't buy this BEC again. I'm really glad I didn't put it in my plane, with my expensive FPV gear.
OK, sounds like I may have been very unlucky. I bought two at the same time and neither gave consistent outputs. One is still going but I don't use it in any aircraft. I noticed that ImmersionRC recommends the Turnigy 5-7.5A UBEC which I think is from the same manufacturer? So maybe these aren't that bad. But for me its once bitten twice shy.
FYI, if you remove the switch you must leave the connection open dont solder it as thats the off position. Also the switch doesnt cut power to bec it only cuts power coming out of it to receiver. Why they did that I dont know because the bec is still powered up. I ended up removing the switch because i didn't want two switches as i installed a jr charge switch that completely cuts power to bec. Otherwise this is a great bec and the led lights are great to because if your running a gp plane you can tell how many flights before you should charge your lipo. With a 2s 3000mah i am getting 1 hour of flight time before it's time for a charge since i am not running ep. Simple install on the top of it i ruffed up the shrink wrap on it sand paper and 30m epoxy some velcro to it and holds well. I just bought a couple more for any other 40 size or bigger planes I get. Or i can easily sell them at the rc park.
Also I only use "sew on velcro" this way it has no factory glue thus i get a clean bond with the epoxy. Amazon has a good deal on that for 5-10 bucks for several yard of sew on velcro. You can get it 1-2 inch widths better to get the two inch as that allows you to cut it to size
Paul if you have a jr charge swtich the on side wire plugs into where the battery plugs into the bec then you plug the battery into the wire on the off side of switch. I changed the plugs on then to ec3 I suggest you remove the servo terminals on the jr switch and on the battery side of the bec and replace with ec3 or somthing simular. Leaving the only jr terminals on the end of the bec that plugs into your RX. Also on the JR switch cut the orange wire and dont use it as it is only needed for binding through the switch and when you plug it into the bec it only has pos and neg wire unlike the jr switch which is 3 wires the orange being signal control wire. So if the bat your using has bullet connectors then just solder bullet connectors on the jr switch and on the one side of the bec just cut the signal wire you wont use this as you can's use the bind feature when using the switch to cut all power to bec. I hope that make since?
the light will work, regardless you connect it to the receiver or not, as long it has an input supply. Both output cable is connected in parallel, it means that you can connect only one, say if you have 7 channel port and you used 6 of them, remain one for power from BEC. If you can connect both to the receiver it will have better conductivity. I bought over a dozen of this and used them all, most of them connected only 1 and all led light works ok.
Yes he is correct the instructions says that using both to power your receiver provides better resistance from interference. Some people also use that to power ignition box or on board glow drivers but if you have a spare slot plug it in receiver
this is for minimum 2s Lipo, I tried to use Life battery, but set the output to 5v, if you set to 6v output it won't work well. So if you haven't tried to set the output on 5V then I suspected those 2x18650 didn't give enough voltage.
Thanks for the reply, the 18650 are 3.7v each, after plugging 2 in series the output from the UBEC was around 5.4v when set to 5v. with 6 of em (3 pairs in parallel) its enough to provide for 9 of the servos... but I have 18 servos to drive... I just bought some Li-Ion here instead and hope they have a better current output.
I wish I could get more info about those 18 servos ou're using. this ubec capability is supplying maximum 8A in normal condition. If those 18 servos are normal standard servo which normally consuming 500mA total will be 9A. this is too much for the BEC, probably this is to root cause of your problem. you might need to split those servo to be powered by at least 2 UBEC.
Im using those low cost HXT900 that use up to 750ma, since I only occasionaly have all the motors running * maximum speed Im hoping the 15A burst would be enough. I measured the current feed using a clamp when plugged to a power supply and it typically goes from 2 to 4Amps depending on the load and occasionally 5A (not * maximm speed)
If I use a 3s 2000Mah Lipo as powersource.
The Linear BEC has to reduces voltage from nominell 11.1volts to 5volts by dispating 6.1volt, 2Ahx6.1v=12.2watts as heat. (45% efficiency)
If I use a 2cell Lipo as powersource:
The Linear BEC has to reduces voltage from nominell 7.4volts to 5volts by dispating 2.4volt, 2Ahx2.4v=4.8watts as heat. (68% efficiency)
Both batteries will give the same runtime, but the 2cell is more energy efficient.
But if I use a switched BEC with 90% efficiency.
Do the same 3cell give longer runtime than the 2cell?
3s: (11.1vx2ah)90%=19.98watts => 5V with 3.996Ah capacity
2s: (7.4vx2ah)90%=13.32watts => 5V with 2.664Ah capacity
Are my assumptions and calculations correct?
you are over thinking the issue.
Though your math is correct you have not looked at the rx consumption of power from the battery.
In the end you will not notice the flight/runtime difference. Seconds is what you are looking at in the long run.
Are your batterys 100% charged or 98.5% sort of deal and 100% balanced vs slightly out of ballance.
You are right.
I was only looking at the theoretical capacity potential of 2 cell and 3 cell batteries when using switched or linear BECs.
No need to buy a bigger 2 cell if there is no issue with heat buildup when using the 3 cells I already have. And theoretically getting the same flight times. (With switched BEC).
Rippen I just got mine today, the instructions with it said the extra lead is to plug into receiver to provide extra resistance, i dont know about orange rx but my specktrum Rx i can plug both leads in it is like plugging in two 6v batteries 1 in the bind port and 1 on aux if you have a extra channel for it on your rx. But like marty said you can use it to power other things as well like his ignition.
The specified input voltage is 6 to 12.6 volts however there have been some comments earlier that it will not work with 2 cell A123 packs (LifePo40). I am only interested in the voltage regulation function not the voltage staus indicator lights.
Does any one know for a fact that the regulator function will or will not work with a 2s A123 pack please?
I used 2s lifepo, it works well, only the input voltage led indicator showing it has low input voltage, which is normal consider lifepo has 6.6v output. I tried with 3s lifepo, 2s and 3s lipo all doing ok, I even tried on my 50cc gasser without powerbox with 6x12kg servo 1x5kg servo without any problem. so far this is my favorite BEC for the size and performance.
Cuidado com esse BEC pois ele nã*o suporta 8A de corrente constante. Temos diversos relatos no e-voo**** em que ele queima mesmo submetido a correntes menores. A sua qualidade nã*o é* das melhores. Para aviõ*es grandes e caros invista em BECs a sua altura.
Tenho 2 aviõ*es com este BEC ambos com 6 servos até* agora sem problemas. Um dos aviõ*es tem 3 servos Towerpro MG996R 10kg e 2 Futabas 3010, e o BEC tem respondido a todas as cargas que o aviã*o sofre.
Alimento o BEC com uma bateria Zippy 2S 1600 20C.
I do it this way. I use 3 of this very good quality BEC up to 700 sized helis with Beast's and HC3SX strong digital servos on 2S 1800 to 2200mAh * 6 V setting (5.5V real outcome only = good even for 4.8V tail servos) . Dont use 3S caus it helps nothing. The BEC just has to have more Volts to "transform down".
HTH, Frank (DE)
Frank thanks for your reply, FYI i have 2 of these things and and i am totally satisfied, but i want to know if i have to supply also power on beastX using the second output lead, also i use 2s battery... Tasos(GR)
These things are great, yes!
To use the double output cables is 1st) a good additional security feature and 2nd) it doubles the Amps that can flow into the RX/FBL/Servo Units. See, the standard JR plugs are very old poor guys regarding modern high amps drawing servos, good for max 1.5amps continous...anyway... to answer your question:
3rd) With these 2 output plugs, it is way best to put one into the BeastX (or any other FBL electronic) and one into a spare channel of the RX.
If there is NO spare channel free at the RX and You must use a Y-Cable to connect Power into the RC system, better use the Y-Cable at the beastX/FBL-Unit instead of the RX, because all the real Suckers (the Servos) are connected to the FBL-unit and the RX is just degraded to deliver the TX Signals - no amps here anymore (a typical RX alone don't pull more than tiny 70-90 milliAmps only, all the Swash Servos draws spikes of 3 to 6 amps EASILY while doing wild 3D!)
Hope that helps,
PS: Yes, to use BeastX 'sys' port is 100% okay to use. For a (re-)programming tasks, you can disconnect it temporaily and have still System Power via the plug going in the RX.
Hi Carlo, You need to click on reply and not post the reply as in a new question what you have done with this one. So you should see "award this answer" which means you need to click on this. if you don't see this link it would mean that you have replied it correctly. Thanks now click on the button below my answer and get a Thanks from me instantly.
i got no output on mine status indicater works and solder joins look ok , switch felt dodgy but still not work after cut and join , just a expensive cell meter , it started to get hot within a few minutes being plugged in , can these things be fixed i wonder would be a nice bec with the 2 outputs , though would be nicer if instead it worked properly
Hello, simply 2 power inputs as the today's servo cables have the same cross section as 40 years ago, meanwhile the amps for rx and servos increased way beyond the old fashionned cables used. Using 2 inputs for feeding your rx you will be able to increase the amps, as long as your rx can handle it. BR, Oliver
Why is there 2 sets of output connectors with one set being thinner than the other directly coming out of the unit? If I am interpreting the pictures correctly, the thicker wires get seperated into 2 sets further down anyways???
Hi qa, from the main picture I would say the thick and thin wire pairs at the top are the LiPo input and the unit's switch. The pair at the bottom do look like they split - maybe to support dual receivers?
I have had 8 of those. 2 worked fine out of box, and still do in super large scale planes w/ 2 - 5 amps typ. current. The next 2 I burnt by mistreating. Then I just had 2 faulty ones. First one stopped after 15 min, couldn't get switched on any more, second one quit after 5 min, stays always on. Now I'm using the last two for the next project, but got a little unsure if I really want to risc the plane with this high fault rate (25% !!!).
NO NO NO, i dont recommend this for your 550 heli, 500 heli already use 6s lipos, 550 too, this bec is good for 2-3s 12.6v max input or you'll burn it! neither will this supply enough for your HV servos, max output of this bec is 6v, check your servo voltage and reciever operating voltage!
Will this work? First i have a hangar9 25% scale "Beast" it has 8 digital servos at around 175 inch ounce tork each. I'm currently using TWO 5s nickle metal packs as a redundancy. I would like to replace them with TWO 2s packs but threw this ubec to regulate the voltage to 6v going into the receiver. so with two of these will it provide enough amperage to power that receiver/servo system? ( is it enough amps????? i don't know what power it draws
Servo's usually draw from 50mA to 700mA. Digital Servo's draw about 500-700mA .. as a rule of thumb I would say that you should budget about 700mA for each servo. So your total with 8 digital servos will be around 5.6A. The UBEC will give you about 8A - so you have some buffer. Since you do 3D stuff, you might want to make sure that you have at least a 3000mAh LiPo for your servo's which technically gives you about 30min if all servo's move the entire time. Hope that helps.
I use the Turnigy dual 8A system on my 25pcnt Yak 54. I only have 5 servos, 4 x 10kg * 6V, 1 x 15kg * 6V and one standard throttle servo also at 6V. Two 2S 3000mA lipos. Both packs were still at 96pcnt capacity after 2 x 10 minute flights.
If you want to stay with the 8-15A UBEC, I would recommend buying two and splitting the power distribution.
Yes this UBEC is sufficient as it will regulate and will not let your system fail with high 6 volts coming in.
82 thumbs up!
Sehr guter ubec,hatt meine Erwartubgen in jeder hinsicht bertroffen. Der "gleiche" Artikel wird in Deutschland fr rund 30 Euro angeboten...!!!!!! Ich nutze die Ubecs in einer 2,4 m Yak 55 (5xDiggi Servos) und einer Extra 2,12 von Composite (auch 5 diggis) und habe keinerlei Probleme damit.Lediglich den kleinen Schalter am Ubec habe ich gegen einen hochwertigeren ausgetauscht.....ist aber eigendlich nicht ntig. www.mfc-thiede-vallstedt.de
3 comments. Reply..
74 thumbs up!
I send one of the BEC to Gerd Giese for testing. Gerd tested it and he gives thumbs up!
See the link here: www.link Babelfish to translate: http://babelfish.altavista.com/
3 comments. Reply..
24 thumbs up!
I placed order on the 23rd, they posted on the 24th, and I received on the 26th, this morning, Saturday, just in time for me to test it out on my X-Cell Stratus 90. What else can I say, the product is simply excellent. Running it on 2s2p 4400mAH LiIon to provide power to all the top end brushless Futaba servos that I used, the voltage is pretty constant (5V7-5V8) all the way through. The only minor drawback that I found is all the 4 voltage indicator LED's remain turned ON for as long as the battery is connected. What I did was, I use additional power switch, placed in between the UBEC & battery, then remove the supplied switch(default switch open = ON), so that the whole circuit is controlled through 1 single power switch. The LEDs are very bright. Very easily seen from behind the heli while hovering, even though the UBEC is placed (double sided taped) underneath the switch. I bought 2 of them, and certainly recommend it to all my RC friends.. The best part is, it works better then my previous 5.3V regulator (US made), comes with voltage monitor, higher current ratings, but at just half the price. Good job HC!!
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11 thumbs up!
Ordered 2 of them for me. The quiescent current measured on both is about 28mA instead of the 60mA announced, so even better. Another good news, what is not mentioned, is that the switch fitted on that U-bec is of the "safety type" or "electronic switch" On mechanical failure of the switch, the receiver does continue to receive power via the Ubec. So you have two in one : Ubec plus safety switch.
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Ramon Molto Salvador
11 thumbs up!
I have mounted it powering receiver (futaba 2,4 ghz), 5 servos (9kg torque) and eletronic ignition engine (SPE26) directly from only one 3300 flight power lipoly pack. Enought power, and very good voltimeter leds indicator. Ramon (Spain). Cames with two output wires.