I received mine today so can't comment on battery life yet but gosh I'm glad I bought this fan. I was concerned and hesitant to buy because I bought one of those little box shaped fans that hang from a cord chain around my neck. do you know the guy It was like a whisper in the air. I didn't even feel it. My hair didn't even explode, but this one is very different. It's very powerful. You definitely feel the air and it's so beautiful. I can't even explain how beautiful it is. And at a low level. That's great. I work in a warehouse and it gets pretty hot and I get hot flashes a few times an hour and I'm drenched in sweat and get so hot I can scream or cry or both. It's amazing when I have hot flashes. Even if I don't have it, it's very nice. Especially since we are wearing masks again at work. We are all so tired of masks. But we have to do it for security reasons so you know. gotta do it I overheat wearing masks. I have tried many different masks and they are all the same. It doesn't matter now because I have this neck fan. I'm so glad I finally took the risk and bought it. It's very worth it.