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Turnigy 5A (8-26v) SBEC for Lipo

Turnigy 5A (8-26v) SBEC for Lipo

Turnigy 5A SBEC  is an advanced switching DC-DC regulator which will supply a constant 5A. It works with 2 - 7 Cell Lipoly pack and supplies a constant 5 or 6v to your receiver and is interference-free.
Type: Switching
Input Protection: Reverse polarity protection
Output (Constant): 5v/5A or 6v/5A
Input: 8v-26v (2-7cell lipo) 
Weight: 18g
Supplied with full instructions.


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Weight: 37g Quantity: 
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Price $4.90

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 Customer rated
Total of 92 discussions.
John  1 points - 7/23/2014
Ok thanks !!
John  1 points - 7/16/2014
Can I use this bec with turnigy k-force 120A hv opto v2 5 - 12s brushless esc ? And im run cyclone power ir600 - 1500 - 50 1500kv brushless motor on edf jet 90mm with 6 turnigy tgy-9018MG metal gear servo.. on 6s lipo battery. . Please help me :'(
 jzzto 325 points
yes, you can use with that battery, but i would go for another choice, it looks it is a big plane, so, choose the 8A bec and also get a spare 2 cell battery (1500mah or similar) to power the bec, so, you will never get a blackout when pushing the esc to its limits and in case of low battery (flying battery) you will always be in control no matter what
rcflyr8632  34 points - 3/18/2014
hi all, i have an old speed controller (turnigy multistar 20amp) and it has a sbec in it(5.5v 4A). could i use this as a bec to power only my reciever in a nitro car. i can solder off the motor wires. the reciever im using is the hk-gt2. i am running 2 servos. help would be greatly appreciated.
 eggplantparrot 80 points
yes of course you can, just make sure the motor outputs don't short out when they are shaking around, or desolder them like you said
 The Bear 150 points
That would be a way of saving some cash, especially if you can de-solder the motor connections, it is just a bit bigger. Make sure you insulate it.
 jzzto 325 points
in addition to the comments above, remove the signal cable from the JR/Futaba plug so you will get no interference
Supagriff  39 points - 2/9/2014
 FlyingTJ 36 points
 Doobieman 986 points
***** **-***** ****'*!
 FlyingTJ 36 points
*************** ************ *********** (*)
 Tuomas 200 points
Not so sure about the questions and answers :) Anyway this has been very good sbec for planes and little extraordinary projects! Tested also with 8s but of course not recommended.
ArduinoFlyer  56 points - 1/31/2014
Does this have a LVC (voltage cutoff) I'm using this as a power supply for my robot.
 Rory 1203 points
I can't be sure but from everything I've read it does not look like it has a low voltage cutoff if you are using this with an electric motor then your electronic speed control will have a low voltage cutoff that will let you know your battery is getting low if you're using this with a glider then I would also order A low voltage alarm please read the reviews as this bec might not be the one for you.
 ArduinoFlyer 56 points
Nah I'm not using it with a ESC as such... I have it to power my arduino, sensors and servos on my robot. Using a homemade L298 driver board to control the motors. I was thinking another way to make a cutoff would to be to connect the 1st cell of my 2s lipo to a analog input of my arduino and then read it that way. Is there any reason I must monitor all cells? Or just the 1st untill it falls below the threshold. Also I could probally monitor both cells with some resistors but that would use an extra pin.
 Rory 1203 points
Hello ArduinoFlyer, first of all, Thank you. Once again I caution you this is a 5amp maximum ESC and it has quite a bit of voltage drop off at least this is what it says in the reviews. That being said you will always want to monitor all of the cells in any LiPo battery if the second sale drops to a dangerously low level and you're only monitoring the first cell then that will not help you
 ArduinoFlyer 56 points
OK thanks for fast reply. I will use a voltage divider to monitor both cells. Could get a Low voltage alarm but prefer not 2. I think that It will work fine
 Rory 1203 points
As always... Have fun!!
Customer Reviews
Overall Rating
46 thumbs up!
I bought this back in January to use with my T-Rex 500, since I wanted more than 3 amps to use with a standard tail servo. Unfortunately, this BEC will not supply more than about 2.5 amps, not the advertised 5amps, without dropping voltage to less than 3 volts. I had several issues while flying, which I couldn't figure out until I hooked the BEC to an ampmeter and found out how few amps it actually supplies.I would give it 0 stars if I could.

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Overall Rating
40 thumbs up!
the led begin to reduce luminosity with load > 2A, i not believe it output 5A...

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Overall Rating
39 thumbs up!
I'm giving this 3 stars, as its cheap, however, the switchmode controller IC is an XL2576, rated at 3amps, not 5.

The instructions also rate it at 5amps MAX (which it will never do anyway) So I have no idea why hobby king are falsely advertising it as 5amps continuous.

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Overall Rating
27 thumbs up!
The description of this switching BEC is misleading. It will supply 3A continuous, but the output voltage drops off at any current draw higher than 3 amps. The ripple voltage is also extremely high compared to others and what would be expected from a power supply of this nature. The heat created is also unacceptable. Power hungry servos like the HXT900 (at 500mA each) would stress this BEC if using 6 servos. The only good thing is the ability to handle 6 cells.

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Overall Rating
26 thumbs up!
The BEC has almost 1V peak to peak switching noise at 2-3 Amps. At 5 Amps the output dropped to 3.5V. The Hextronic 3A BEC is much better.

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