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  Item found in the following categories;
> Speed Controllers > All Speed Controllers
> Speed Controllers > 20 to 39 Amp
> Multi-Rotors & Parts > Speed Controller > Q Brain Series

  RATED:

Q Brain 4 x 20A Brushless Quadcopter ESC 2-4S 3A SBEC (USA warehouse)

Q Brain 4 x 20A Brushless Quadcopter ESC 2-4S 3A SBEC (USA warehouse)
Q Brain 4 x 20A Brushless Quadcopter ESC 2-4S 3A SBEC (USA warehouse)

The Q Brain provides the perfect power solution for your quadcopter by incorporating 4 x 20A ESCs into one single unit. This keeps the wiring very tidy and allows you to mount this unit in the middle of the frame instead of having to mount an ESC on each arm.

With adjustable low-voltage protection, startup mode and motor timing, the Q Brain is not short on programming features. This and its ability to operate on 2~4S lipoly or 5~12 cells Ni-XX makes it a very versatile ESC.

The Q Brain keeps things simple by having all of the motor leads pre-installed and terminated with 3.5mm bullet connectors. There are 4 x signal leads (one with power) that will plug directly into your flight controller's ESC output ports. A throttle hub is also included for use in applications requiring the use of a shared throttle signal.

Features:
• Convenient all-in-one ESC design
• 4 x 20A output
• Adjustable low-voltage protection
• Fully programmable

Specs:
Input Voltage: 7.4~14.8V (2~4S lipoly)
Cont. Current: 20A x 4
Burst Current (10 sec): 25A x 4
BEC Type: Switching
BEC Output: 5V@3A
Motor Wire Length: 250mm
Dimensions: 70x62x11mm
Weight: 112g

*Note:
This ESC is compatible with the Turnigy BESC Programming Card (sold separately). Please see related items below.


PRODUCT ID: 9020000001


Weight: 143g Quantity: 
International Warehouse In Stock View Item
stock
10+
Price$30.03


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 Customer rated
55
crowns
  
 
Total of 39 discussions.
Piotr  1 points - 4/13/2014
 
I try to use q brain with kk 2.1.5 and id doesn't work. If I calibrate motors by t hub everything is ok and motors work but when I conect it to kk it stop work. Motors dont rotate:( I don't know where is the problem.
Collin  3 points - 4/10/2014
 
Would it work with the q brain esc? I like it considering it gets rid of all the esc soldering.
Collin  3 points - 4/10/2014
 
If I'm correct this should also provide power to the mother board with the setup going from the battery to the esc to the board? Im using a kk2.1 board and i want to make sure this thing won't short
 the right stuff 1637 points
The KK2.1 will only take power from port 1. All the rest have been blocked so even if you have 4 esc's supplying power, it will only take the power from one of them. Great bit of kit.
Alex Fermon  1 points - 3/24/2014
 
Can I use this with the default configuration? (to avoid buying the Programming Card ) I'm brand new at Multi-rotor so i think to use https://www.hobbyking.com/hobbyking/store/__12916__D
2822_14_Brushless_Outrunner_1450kv.html
in a F330 Frame and a LIPO batery. The motor is max 160w according to this page. It will be 14Amps at 11.1V Can anyone help me?
 Steven 1 points
Yes i use this ESC on my 650mm framed copter with 200w motors with 18amps at 11.1V and it flew just fine with default configuration. Just remember to calibrate the throttle for each motor. Yours being a smaller setup, you should have no overheating or power issues.
Yale  1 points - 3/14/2014
 
Could this be used to synchronize two motors one spinning CW and one spinning CCW?
 Haynboy8 36 points
Yes. You would just leave 2 sets of esc wires unconnected. Then to get cw and ccw just switch two of the wires that are connected to a motor and it will reverse direction.
Customer Reviews
Overall Rating
kaptondave
342 likes
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I got mine a couple of days ago and installed it on a custom 500mm quad. Before getting into that let me say that I am very pleased with it. The quality of workmanship and overall appearance is excellent. My first thought when I took it out of the packaging was that is was heavier than I expected. After weighing it however I found that it was almost exactly the same weight, including the installed 3.5mm bullet connectors, as the four Blue Series 20A ESCs it replaced. The wire length was greater than I needed, so by cutting them down I could get the weight down but decided not to do that. I was at a loss about how to install the Q Brain on my quad because there are no mounting holes. I wanted it mounted securely so elected to remove the back of the case and attach it to the deck using nylon screws to avoid the possibility of an electrical short. I then re-attached the case to the back plate using the orig screws. Note that doing this might void your warranty. My quad has 16mm carbon tubes for the arms so I was able to route the ESC wires through the tubes to the motors. Installation was much easier than using individual ESCs. On finishing it I was struck by how clean and neat everything looked with no exposed wires. I have completed several successful flights with the quad and everything worked perfectly. Throttle and control response is very smooth and fast. I h


4 comments. Reply..

Overall Rating
Genetics101
30 likes
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It appears Kaptondave is a lying POS! In his review on 8/19/2013 he clearly states how pleased he is & how clean the build looks & even says he has "several successful flights"! On 9/22/2013 CarbonComposite writes Kaptondave & tells him he likes his review & politely asks him if he has video or pics of his quad & as surprising as it seems Kaptondave writes back on 9/22/2013 (later that evening) an clearly states he can't provide photos because (QUOTE) Have not built it yet! (End Quote)! It really disgusts me that folks blatantly lie like this & sad too, because initially I thought , "cool" this is a good product but then you catch them in their lies & you don't know what to believe. Do us all a favor "Kaptondave" & keep your reviews to yourself! Nobody respects the opinion of a lying POS!


3 comments. Reply..

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Overall Rating
MrMous
11 likes
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If your quad can use this, I don't see any reason it shouldn't have it. Saves a decent mount of weight, and great to be able to program all 4 ESC's at the same time.


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Overall Rating2/8/2014
marlan05
7 likes
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Quality
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Ordered two of these for some quad builds I was doing. Very good esc's for the price. They work great! Using them with the 2728 1000kv motors on a few builds and no issues! It makes wiring very easy and clean. I will be ordering more!


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Overall Rating3/12/2014
QuadFinger
211 likes
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Finally installed mine in an X525 quad frame. It's sandwiched between the top and bottom frame halves and held in place with double sided tape. When exactly centered, you can still fold the quad arms. Hooking it up to a KK2.1 flight controller board should be straight forward but it's not. The KK board requires that M1 connector has the power lead in order to power up the board. The issue is that the Qbrain has it's power lead on ESC 2 or M2 on the KK board. When building with discrete ESC's this in not an issue because all of them have power leads.. You will need to swap the power and ground pins on the connectors of the Qbrain from M2 to M1 leaving the signal lead in place. Then follow the legend on the Qbrain for hook up. I have read a lot about flashing and or programming the Qbrain. I have 2 tri rotors and 3 quads using either Turnigy Plush or Multi Star ESC's and this new one using the Qbrain. I didn't have to calibrate the throttles or use the programming card on the Qb, they come ready for use out of the box for quads (except for the M1-M2 issue). So what's on this quad? KK2.1 FC, Qbrain 20 amp, Orange 6ch Rx, NTM Prop Drive 2826 1200kv and 8x4.5 props. Powered by a 4S Nano tech 2650. It's a 3D rocket and tracks like it's on rails!! I do endorse the Qbrain.


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