Review on Versatile Portable Fan for Baby Stroller - Power Bank, 50H 12000mAh Mini Cooling Bed Fan with Tripod - USB Rechargeable & Battery Operated - Clip On Stroller/Car Seat/Bike (Black) by Tracie Price

This is the best rechargeable fan. After fully charging it, I turned it on overnight and it still worked. I left it on while I worked another 12 hours. It continued to work 22 hours after I charged it. So I wanted to see how long it would last. I went to bed around 11:30pm, now it was still working after 25 hours of work. When I woke up and it was still working it was at 7:30am, I turned it off for about 1.5 hours then turned it back on and it worked another 9 hours. He was still working. Mind you, I haven't plugged it in to charge since the day I got it. Now I haven't touched it for about 2 weeks, I just turned it on and the battery still holds a charge and it's running on the same charge when I got it. Let's see if it lasts the night. Sonically, at a low level, like a whisper. Of course, the middle is a little louder and the highs are a little louder, but still quieter than my window air conditioner, which is only 3 months old. I believe the db is on high 55. The test will continue after this load is complete. I'll let you know how long or if it stops before 8.5 expires. Then I'll see on Wednesday how long it takes. Sequel follows.