Answers.Body: <p>I don't have this set, so I can't provide a fully authoritative answer, but 9V is likely to be safe for these motors. The hub that drives them is definitely 9V, as it connects with the rest of the 9V system and runs on 6 AA batteries:</p>
  <p><a href="https://i.sstatic.net/rKv8J.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/rKv8J.jpg" alt="enter image description here" /></a></p>
  <p>TLG typically overspecs their motors somewhat, so you could probably also get away with running the motor using 12 volts, but it might harm the life expectancy a bit. If you can pull out the actual motor, you might be able to find a model number to look up for a more authoritative answer.</p>
  <p>I'd recommend starting with a lower voltage (perhaps 3V) and working your way up to make sure that the motors are functioning as expected.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-11-20T23:46:57.307Z
Answers.Text: I'm not so sure, the input voltage for the motors has to equal the batterys voltage. As the board might aswell downstep it to virtually any value. Thx for answering (+1) but I'll see if someone might know for sure before marking as answered. If noone comes up knowing I probaly go with your proposition and raise the voltage and feel if they get hot ^^
Answers.UserDisplayName: kai-dj
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-11-21T01:24:27.797Z
Answers.Text: @kai-dj That's correct. The motor voltage does not have to equal the battery voltage, it's just a guess that these are the same. You should still be able to play around with these pretty safely without much fear of them letting their smoke out. If you start at 3V and work your way up from there you should be able to tell by the sound, current, temperature, and smell if the motor is running too hot. I hope someone here has this part and a more authoritative answer for you.
Answers.UserDisplayName: jncraton
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-11-23T21:40:09.007Z
Answers.Text: Seems like 9V ist the voltage to go with. 12V seemed ok, too.
  I might buy a functioning Cybermaster, to check what the board deliveres to the motors on full speed - if I do so, I'll edit or add new answer.
Answers.UserDisplayName: kai-dj
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-11-23T22:54:22.540Z
Answers.Text: @kai-dj Sounds good. I'm glad that you were able to get this working.
Answers.UserDisplayName: jncraton
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-11-20T23:18:23.273Z
Answers.LastActivityDate: 2020-11-21T01:33:04.847Z
Answers.LastEditDate: 2020-11-21T01:33:04.847Z
Answers.UserDisplayName: jncraton
Body: <p>I recently bought a non-functioning <a href="https://rebrickable.com/parts/71797/cybermaster-unit/" rel="nofollow noreferrer">Cybermaster unit [part:71797]</a>.</p>
  <p><a href="https://i.sstatic.net/lDjHQ.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/lDjHQ.png" alt="Cybermaster Unit" /></a></p>
  <p>As the motors in there might be perfectly fine, I'd like to use them.
  I could not find information on these motors (as opposed to most other Lego motors ^^).</p>
  <p>What would be the maximum safe-to-apply voltage for them?</p>
  <p><a href="https://i.sstatic.net/MaMfB.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/MaMfB.jpg" alt="Motor photo" /></a></p>
  
Tags: <motor><repair><electronics><9v><12v>
Title: What is the maximum voltage for motors from Cybermaster units?
UserDisplayName: kai-dj
ThreadText: # What is the maximum voltage for motors from Cybermaster units?
  
  (Asked by: username_0 on 2020-11-20)
  
  I recently bought a non-functioning [Cybermaster unit [part:71797]](https://rebrickable.com/parts/71797/cybermaster-unit/).
  
  [![Cybermaster Unit](https://i.sstatic.net/lDjHQ.png)](https://i.sstatic.net/lDjHQ.png)
  
  As the motors in there might be perfectly fine, I'd like to use them.
  I could not find information on these motors (as opposed to most other Lego motors ^^).
  
  What would be the maximum safe-to-apply voltage for them?
  
  [![Motor photo](https://i.sstatic.net/MaMfB.jpg)](https://i.sstatic.net/MaMfB.jpg)
  
  **Tags:** motor, repair, electronics, 9v, 12v
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2020-11-20. Score: 2 | Accepted answer
  
  I don't have this set, so I can't provide a fully authoritative answer, but 9V is likely to be safe for these motors. The hub that drives them is definitely 9V, as it connects with the rest of the 9V system and runs on 6 AA batteries:
  
  [![enter image description here](https://i.sstatic.net/rKv8J.jpg)](https://i.sstatic.net/rKv8J.jpg)
  
  TLG typically overspecs their motors somewhat, so you could probably also get away with running the motor using 12 volts, but it might harm the life expectancy a bit. If you can pull out the actual motor, you might be able to find a model number to look up for a more authoritative answer.
  
  I'd recommend starting with a lower voltage (perhaps 3V) and working your way up to make sure that the motors are functioning as expected.
  
  > **Comments:**
  > **username_0**: I'm not so sure, the input voltage for the motors has to equal the batterys voltage. As the board might aswell downstep it to virtually any value. Thx for answering (+1) but I'll see if someone might know for sure before marking as answered. If noone comes up knowing I probaly go with your proposition and raise the voltage and feel if they get hot ^^  
  > **username_1**: @username_0 That's correct. The motor voltage does not have to equal the battery voltage, it's just a guess that these are the same. You should still be able to play around with these pretty safely without much fear of them letting their smoke out. If you start at 3V and work your way up from there you should be able to tell by the sound, current, temperature, and smell if the motor is running too hot. I hope someone here has this part and a more authoritative answer for you.  
  > **username_0**: Seems like 9V ist the voltage to go with. 12V seemed ok, too. I might buy a functioning Cybermaster, to check what the board deliveres to the motors on full speed - if I do so, I'll edit or add new answer.  
  > **username_1**: @username_0 Sounds good. I'm glad that you were able to get this working.  
  
  ---
  
  