I'm looking to mount a couple of small brushless fans in my Mandaloran helmet, I'm just not sure how to go about it. What is the easiest way?....12V and a couple of A23 batteries?...with a switch?
Small squirrel fans/blower fans with a 12 volt battery I think is a fairly common way of doing it. You can also buy kits online for fairly decent prices. My helmet has a Trooper Tronix kit with three fans (one of which can be detached) and came with a rechargeable USB power pack. Trooper Tronix Triple Fan Kit for cosplay with 5,000 mah rechargeable battery bucket fans 3
There's also Troopacoola, Henry's Helmet Fans and a few others.
At the time I bought two welders mask fans by HiTechToyz who also make the Star Wars Voice changers, masks and the like.If you can't make it yourself, perhaps consider buying from them.I hope that helps