Jump to content
Electronics-Lab.com Community

re-wiring to use batteries???


Recommended Posts

Hi all,

There is probably a very straightforward answer to this so you will have to excuse my ignorance.

I have a PC fan controller that I want to run on batteries. It came with the standard 12v,-ve,-ve,5v molex connector.

I connected the 12v wire to a 12v battery pack +ve. I then connected another wire from the +ve to a 5v regulator and onto the 5v wire. I then connected the 2 ground wires and the regulator ground to the battery pack -ve terminal.

The LCD backlight comes on and that's it. I am going to be installing this in my car so should all ground connections go to the body earth of the car?

If anyone can help with this it would be great as I'm sure it's a simple problem that I just don't have the knowledge to fix.

Thanks in advance

John

Link to comment
Share on other sites


Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
  • Create New...