Review: Holybro Tekko32 4in1 ESC Combo

After testing the Holybro Tekko32 4in1 ESC for about 3 months now, I can finally recommend it with confidence! Top notch build quality, easy to work with, and performance is just impeccable!

The Tekko32 4in1 ESC runs BLHeli_32 and it’s rated at 35A per channel (140A total). You can purchase it individually, or you can buy it with the Kakute F4 V2 flight controller as a combo.

Specifications

  • 3S – 6S LiPo Input
  • 35A Continuous Current Rating, 50A Bursts (10 seconds)
  • Dimension: 55x40x6.4mm
  • Weight: 15.8g

It supports all the BLHeli32 features:

  • Separate current sensors for each motor
  • ESC telemetry
  • DShot1200/Multishot
  • PWM Frequency of up to 48MHz (why?)

A Close Look at the Tekko32 4in1 ESC

First of all, I can’t tell you how much I like the shape of this 4in1 ESC. It doesn’t have that “extruded” solder tabs for the motors that takes up extra space. It’s just a square board with the tabs for the main power. It definitely fits a wider range of frames especially tight racers.

As you can see there are a large amount of capacitors on the board which has proven to be very effective for reducing noise in the power.

You can get the current sensor data by selecting “ESC sensor” in the power tab of Betaflight Configurator, but you would have to setup ESC telemetry first. The default current sensor scale in BLHeli_32 is pretty accurate and I didn’t need additional calibration.

There is a current sensor data pin in the header, so you can probably select “Onboard ADC” in the power tab without the need for ESC telemetry. But I haven’t tried it, and I am not sure how it’s going to work because there are 4 individual current sensors… Just setup ESC telemetry and save yourself from headache.

Pinout of the connector between ESC to FC, starting from the red wire: LiPo voltage (for VBAT), ESC Telemetry, GND, Current Sensor, M1, M2, M3, M4. It’s a direct connection with the Kakute F4 V2 FC.

How does it perform?

Well, when it comes to soldering, it was effortless. The pads are very nice to work with.

I also like the silicon spacers they have provided to compensate for the height of the FET’s, so your standoffs can sit snugly on the ESC.

I have only tested this ESC on 4S so I can’t comment on its 6S reliability and performance yet. But so far I’ve only heard good things about it.

One complaint I have about the Tekko32 4in1 ESC is the lack of 5V BEC. In fact it doesn’t have any BEC (voltage regulators) built-in, so you will have to make sure your FC can provide power to whatever you need, like the FPV setup and RX etc.

But it’s not a problem if you are using the Kakute F4 FC which is a perfect match for these ESC’s.

These videos are shot with the quad using the Tekko32 4in1.

 

Comment from a visitor, Johan Eriksson:

They have one more thing you should know about and that is that they generate a lot of EMC. This is normally not a problem but if you use a FC with the gyro on the side facing the ESC, the gyro can be effected. This is a problem if you use Helio Spring IMU-F. The solution is to tape the ESC with electric tape for isolation and then copper tape on top of that for EMC shielding. The alternative is to flip the FC over so that the gyro is located on the opposite side from the ESC

8 thoughts on “Review: Holybro Tekko32 4in1 ESC Combo

  1. Fraser Steen

    Interesting that last comment about the FC gyro.

    I’ve just bought this 4in1 to go with the helios and the ESC has a big copper plate on top of the fets, I assumed it was for cooling but maybe it’s actually noise shielding

    Reply
  2. Daniel Lange

    Can i also Connect thus top the kakute aio? Or so i have time Jeep using individual escs with that one? Would i have to Bridge the Main battery leads?

    Reply
  3. FantaZy

    Funny it’s exactly (more or less) the same layout as a bolt32 from raceflight.
    Maybe the same manufacture :)
    If it’s quite as good, no worry to use it, the bolt32 is rock solid.

    Reply
    1. jackiekan

      Have you had any interference problems with the Bolt32 (stuff randomly shutting off)? I just got mine in the mail but haven’t built it yet.

      Reply
      1. FantaZy

        I actually had 2 receiver brownouts but at the time I had the FC sitting under the ESC.

        Now that I have the ESC under the FC (with the provided shielding installés) it’s never happened again :)

  4. Johan Eriksson

    TEKKO32 4IN1 is great! I have two so far. Sadly I have one that broke after just 10 packs.
    They have one more thing you should know about and that is that they generate a lot of EMC. This is normally not a problem but if you use a FC with the gyro on the side facing the ESC, the gyro can be effected. This is a problem if you use Helio Spring IMU-F. The solution is to tape the ESC with electric tape for isolation and then copper tape on top of that for EMC shielding. The alternative is to flip the FC over so that the gyro is located on the opposite side from the ESC

    Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

Are you Robot? *

I only check blog comments once or twice a week, if you want a quick reply you can post your question on this forum IntoFPV.com... You might get a faster response from me there (multirotor related only).