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HobbyKing Red Brick (2~7S) 70A ESC V2

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HobbyKing Red Brick (2~7S) 70A ESC V2


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The HobbyKing Red Brick ESCs wont win first place for style, though they will take top points for simplicity and reliability. With a basic set of programming features these ESCs are a perfect solution for anyone looking for a basic yet robust speed controller.

The Red Brick ESCs have been engineered with heat dissipation in mind. featuring over sized Aluminium heat sinks the Red Brick ESCs are slightly larger than many ESCs in their class, however this compromise in size is aimed at assisting to eliminate the problems associated with over heating.

• Smooth, linear throttle response
• Uses powerful, high performance MCU
• Multiple self protection functions: abnormal voltage input, low battery protection, over thermal protection, throttle signal loss
• Programmable via throttle stick (see instructions under "Files" tab)

Constant Current: 70A
Max Burst Current: 90A
Input Voltage: 2~7S (7.4~25.9), 6~20 NiCd/NiMH
BEC: 5V/5 A
Dimensions: 60x35x18mm
Weight: 70g
Servo Lead: JR Type

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JASON | Verified Buyer

  • Overall
  • Quality
  • Value

Good ESC. Bec slightly too weak

Nov 21, 2022

The price is great and I have had no problems with these conrollers in the past and I use a few of them. But the Bec is only 5Volts and not really stable especially you have more than 4 Standard servos in your plane. I see the Voltage drop of the RX drops sometimes down below 4,3Volt at least for some seconds!! I recommend highly to solder an external 6V/6A UBEC Parallel to your power supply connector. The ESC comes without connectors und the Motor wires are really short. Be careful about the BEC otherwise a fine product with a very low price.

Achim | Verified Buyer

  • Overall
  • Quality
  • Value

Sehr gut - funktioniert einfach

Sep 14, 2022

Nutze den Regler RED BRICK 70A zusammen mit einem Brushless SK3 5045-660 Kv in einer RASCAL 80 mit 4S Akkus 3800 oder 5000 mAh und einer 15x8 Luftschraube.
Der Regler tut einfach, was er soll, ohne große Einstellarbeiten.
Wie vorher schon ein Kunde geschrieben hat, sollte der Servoweg für die Motordrossel auf 110% eingestellt werden.
Mit dem Regler gibt es keine Probleme !!!!!!!!!!!!

Sidharth | Verified Buyer

  • Overall
  • Quality
  • Value

Good esc

Jun 28, 2022

Very nice performance. It has good quality and i would recommend.

Waterflyer. | Verified Buyer

  • Overall
  • Quality
  • Value

Good quality for price.

Feb 17, 2022

Product came when advised and was well packed.
Speed controller works superbly and runs quite cooly, only just gets warm when pushed. A good buy.

wotty | Verified Buyer

  • Overall
  • Quality
  • Value

excellent value

Feb 05, 2022

well made and good value. I would recommend getting the red brick programming card.

Cyclone7 | Verified Buyer

  • Overall
  • Quality
  • Value

Simple, Great Value and Does the Job!

Feb 03, 2022

I bought the Red Brick 70A ESC to install in the HK 1800mm Cub, powering the excellent Propdrive 35-48 900KV motor. I am very pleased that I chose this ESC in preference to some of the more expensive options as it has turned out to be a very good buy indeed.
Simple, robust and easy to program using a transmitter, once you familiarise yourself with the different tones - I recommend this excellent tutorial when setting up your new Red Brick;
I did remove a portion of the heat shrink covering over the heat sink fins to aid cooling, which appears to be a common practice - easy to do and effective.
All in all, an excellent choice of ESC at a very affordable price. I thoroughly recommend it for fixed wing models.

Chris | Verified Buyer

  • Overall
  • Quality
  • Value


Jan 18, 2022

Does what it should

Sid | Verified Buyer

  • Overall
  • Quality
  • Value

Very good esc slightly heavy

Jan 07, 2022

Brought for my bigger planes. Works well. Little heavy but rugged and sturdy and reliable.
Price is very good. Thanks HK

speed | Verified Buyer

  • Overall
  • Quality
  • Value


Dec 29, 2021

delivers plenty of power for a 70A ESC & hold very well under heavy load

DadaSauce | Verified Buyer

  • Overall
  • Quality
  • Value

Stay away!

Dec 20, 2021

With a lot of promising reviews here, I got two my newly acquired (and beloved) Duelist. One died on the second flight, causing a stall and irrecoverable spin which turned it into a big pile of match sticks.
The more disturbing news is that the full throttle current draw for my setup was a mere 50A per each motor and I went to 70A just to be on the safe side for this specific plane. That seemed not to work at all!

Customer files
ThisWorks Download [1083]
Red Brick Esc 100A manual ok.pdf Download [1]
file:///home/tom/Dokumente/Eigene%20Bauten/E-Bike/ESC%20USER%20MANUAL%20-%20Hobbyking%20Red%20Brick%20HK-10%20-%20120A.pdf Download [294]
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