So, like many of you, I was skeptical about the claim of 40 hours of battery life on the lowest setting. Well I'm not sure if I got the full 40 hours or not but I'll tell you I bought this fan for summer camping which we do a lot lately because we have nothing else to do. I ran this fan every night while I slept to cool off and the lowest setting was enough for me. If you like really freezing in your sleep, that might not be enough, but it worked for me. So far I've taken it on 3 trips for a total of 7 nights, worked about 6 hours each night, that's about 36 hours, and it's still working fine. I've now plugged it in for charging as I don't want to be pushing it for my next ride. I also really like that it has a USB port so it can be used as a charger in a pinch. It's not very easy. but not too heavy either. Overall this is a great fan and I plan to buy a few more for the rest of my family.
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