How to Make a 9V Handy Battery Fan By howtoraju in CircuitsElectronics2,831111Introduction: How to Make a 9V Handy Battery FanBy howtorajuHow To RajuFollow More by the author: About: Here you can find lots of Interesting How to, DIY video tutorials More About howtoraju »Here you can learn, how to make a homemade 9V handy battery fan. Very simple and very easy to make.