<p><em>YES!</em>  Philippe Hurbain (Philo) has put together a great and very detailed write-up on those and many other LEGO 9V electric motors.</p>

<p>You can find it here:  <a href="http://philohome.com/motors/motorcomp.htm">LEGO 9V Technic Motors compared characteristics</a></p>

<p>Your current draw for that specific motor @ 9V is:</p>

<pre><code>No load:              65mA  
Loaded (3.6 N.cm):    310mA  
Loaded (6.0 N.cm):    480mA  
Stalled (11 N.cm):    850mA
</code></pre>

<hr>

<p><sub>I was about to ask this very question when a friend pointed me to this write-up.</sub><br>
<sup>Hopefully someone else will find it as useful as I did.</sup></p>

CC BY-SA 3.0
2015-12-26T14:44:29.343Z
I found his web site very helpful when I had do find a fitting H-bridge  to control LEGO motors with my arduino
MrSmith42
CC BY-SA 4.0
2021-01-15T18:53:51.163Z
Can you share the make & model of the H-bridge that you used and where you got it? I have a similar project involving littleBits, See [here](https://bricks.stackexchange.com/q/15798/8175) for details.
EJ Mak
CC BY-SA 3.0
2015-12-24T03:49:19.810Z
2015-12-24T03:49:19.810Z
Robin
<p>I'm building a project with <a href="http://raspberrypi.org/" rel="nofollow noreferrer">Raspberry Pi</a> and some other electronics driving the LEGO Power Functions M-Motor (8883) and I need to know how much current those motors draw under load.</p>
<p>Has anyone done tests and put together a spec sheet for these motor's electronic characteristics?</p>
<p><sup>This is my first post here on Bricks.SE!  Hopefully sharing this is welcome.</sup></p>

<technic><power-functions><motor><electronics>
How much current do the LEGO motors draw?
Robin
# How much current do the LEGO motors draw?

(Asked by: username_0 on 2015-12-24)

I'm building a project with [Raspberry Pi](http://raspberrypi.org/) and some other electronics driving the LEGO Power Functions M-Motor (8883) and I need to know how much current those motors draw under load.

Has anyone done tests and put together a spec sheet for these motor's electronic characteristics?

This is my first post here on Bricks.SE! Hopefully sharing this is welcome.

**Tags:** technic, power-functions, motor, electronics


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## 1 answers

### Answer by username_0 on 2015-12-24. Score: 16 | Accepted answer

YES!  Philippe Hurbain (Philo) has put together a great and very detailed write-up on those and many other LEGO 9V electric motors.
You can find it here:  LEGO 9V Technic Motors compared characteristics
Your current draw for that specific motor @ 9V is:
No load:              65mA  
Loaded (3.6 N.cm):    310mA  
Loaded (6.0 N.cm):    480mA  
Stalled (11 N.cm):    850mA


I was about to ask this very question when a friend pointed me to this write-up.
Hopefully someone else will find it as useful as I did.

> **Comments:**
> **username_1**: I found his web site very helpful when I had do find a fitting H-bridge  to control LEGO motors with my arduino  
> **username_2**: Can you share the make & model of the H-bridge that you used and where you got it? I have a similar project involving littleBits, See [here](https://bricks.stackexchange.com/q/15798/8175) for details.  

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