Computer fan lower heat stress

[cigarettes42]

how i powered a pc fan was i used a battery charger for a norelco electric shaver. the plug in on on battery charger fit the pins on the pc fan connector. oh i used a 80mm fan too. i think something smaller might burn out cause that 80 mm is spinning pretty fast

[SunnySativa]

I have a Norelco, its not a charger you put the shaver on tho, its like something you plug into the bottom of the shaver, kinda like a cell phone charger, its 2 prongs...would that work or be to much and burn out the fan

[TheGanjaKing420]

I've rigged up a couple with cell phone chargers before, buts its important you match voltage and such. If not the sparks will fly. I know. I've learned many things the hard way.

[Atkeni]

Heres a link to how i got a PSU running without Mobo, note that you can pick up cheap PSU's for a fiver, plenty for a few fans

modtown - article - Powering an ATX PSU Without a Motherboard - if it ain't broke - mod it!

[SunnySativa]

Nice, got it, where do you plug the fans into tho? Negative to any black, positive to any red?

[SunnySativa]

Atkeni, thanks for the info, i got it working through my extra power supply

[cigarettes42]

Nice, got it, where do you plug the fans into tho? Negative to any black, positive to any red?

just try either way and see what way the fan spins. if you hooked it up backwards it will just blow the opposite way which you dont want. it wont hurt anything but if the fan spins backwards then its hard on the bearings. you want the fan to blow back towards the plastic frame thats holding the fan in the middle. sorry for the late reply. if it seems like its spinning too fast then just hook up two fans to it. but when i had only one it spun really fast but never burnt out. when those fans go bad they will either quit working or make a bunch of noise. and that norelco thing your talking about is what i was using. it look like this>?

oops i quoted the wrong reply, go with the psu tho if its working!

[gainesvillegreen]

Check this out.

PC Power Supply

[ManOHman]

Can someone post details (and pictures) of how to connect a CPU fan to a cell phone charger?

[SunnySativa]

well in a nug shell, those tiny comp fans have 2 wires, negative and positive. First you have to make sure that the charger voltage will support the fan in the first place. If it does [look at voltage on the charger and the fan, usually says it on it] then touch the positive to the positive on the battery and the negative to the negative and it should work. I didnt try it like this but ive tested with one of those batteries that go into a hand held camcorder and it worked like a charm [i dunno if that helps you tho].

**EDIT**
Your best bet is to find a battery supply from a computer and look at the links above that show you how to wire it up that way, VERY simple, i use the comp fan in my dryin room to keep currculation..