How to make a basic DC fan circuit with an on/off switch (source from batteries). I will be more than happy if I have the schematic and the component needed.

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    \$\begingroup\$ What sort of fan? Fan as in toy fan? Fan as in 5V PC cooler. ...? \$\endgroup\$
    – Russell McMahon
    Mar 19, 2012 at 3:53

1 Answer 1


These components will do the trick:

  • 12V battery
  • Push button switch
  • 12V DC fan

Then you just connect them in series in whichever order you prefer, for instance:


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