Review on Stay Cool Anywhere with the 2021 Portable Neck Fan - Rechargeable, Lightweight & Hands-Free! by Jim Linquist

I work 10-12 hours in a very hot warehouse. Battery life is critical to me as I need something that lasts my entire shift. I chose this 6000mah battery as I am convinced it should work. Well, I didn't get halfway through my shift the first day I used it, and it's dead. The battery life is up to 20 hours depending on the speed setting. I had it on level 1 and it lasted less than 4 hours. I am so disappointed. What a waste of money. I could get one for part of the cost! I suggest you do the same. I will most likely buy a much cheaper neck fan with good reviews.