Answers.Body: <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>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-12-26T14:44:29.343Z
Answers.Text: I found his web site very helpful when I had do find a fitting H-bridge  to control LEGO motors with my arduino
Answers.UserDisplayName: MrSmith42
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-01-15T18:53:51.163Z
Answers.Text: 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.
Answers.UserDisplayName: EJ Mak
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-12-24T03:49:19.810Z
Answers.LastActivityDate: 2015-12-24T03:49:19.810Z
Answers.UserDisplayName: Robin
Body: <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>
  
Tags: <technic><power-functions><motor><electronics>
Title: How much current do the LEGO motors draw?
UserDisplayName: Robin
ThreadText: # 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
  
  ---
  
  ## 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.  
  
  ---
  
  