Another quick fan tutorial for those of you that need some air in your bucket. And we'll be doing it on the cheap! . I found 12V fans online, and found some 12V batteries at Walmart that are used for key fobs, and other small electronics. I will be testing these batteries this weekend to see how long they can put out continuous power, but the price and the size was right. I didn't want a huge stack of AAs in my helmet.   Parts List: 1. Two (2) Evercool 40mm fans from NewEgg.com, t