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Super easy battery powerd computer fan

Step 5Your Finished

Ok now all you have to do is put a wire tie on there to keep the wires organized and your done!

I wanted to put in blue leds but i didnt have any.
Thanks for looking please comment

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4 comments

Aug 1, 2010. 7:07 PMJunkyard Dawg says:

What are the extra wires (I.E. the blue wire) mentioned for?

Nov 30, 2010. 12:23 PMxAxrules says:

Two cables = just power
Three cables = Power + speed sensing
Four Cables = Power +speed sensing + PWM control

Oct 1, 2009. 9:24 PMBOHUNTER08 says:

How long can the fan run on a 9v? Could you use a bigger battery for longer use... say a week non-stop?

Oct 18, 2009. 10:51 AMsharlston says:

it only runs foir around 15 mins i have the same fan normally if im red hot ill run about 48v through it

Oct 6, 2009. 12:22 PMbadboypl3 says:

grow box?

May 30, 2009. 3:41 PMéolien says:

Hey, great idea! Everything's simple and easy. thank you. congrats!

Feb 15, 2009. 8:20 AMDunkm1n says:

Were you at all able to determine the RPMs of the fan, cus I was looking at adding some 9v powered fan to a cooling mat I was working on and wanted to know if a 9v would be enough for 2 or just one (as on paper the math comes out to 2 fans at 2500rpm)