Reddit reviews O2COOL NEW 10 FD10101A OPEN BOX

https://www.amazon.com/gp/aw/d/B001APXO5C/ref=mp_s_a_1_10?ie=UTF8&qid=1495269418&sr=8-10&pi=AC_SX236_SY340_QL65&keywords=battery+powered+fan&dpPl=1&dpID=51JJQuNWAZL&ref=plSrch

I bought this one and one set of batteries lasted for the entire weekend of using it 6-8 hours every night: http://www.amazon.com/BATTERY-OPERATED-INDOOR-OUTDOOR-ADAPTER/dp/B001APXO5C/ref=sr_1_6?ie=UTF8&qid=1369826627&sr=8-6

That thing is a total lifesaver in the tent in the morning. Definitely enabled an extra hour of sleep for me every morning.

Bring a small camping fan like this Ozark Trail model and you'll be in great shape. Also, pack a surge protector, but a) buy a new one and b) leave it packaged. The fan comes with an adapter and is all plastic so you won't have to worry about it getting through. The surge protector is new and packaged. Old and not packaged runs the risk of getting confiscated.