I've been having it since 2017... It's amazing fan I take it with me wherever I go... Am looking to buy another one but unfortunately it's sold out. I'll be waiting till you have it again in your stock....
I purchased this fan for a safari in Tanzania and a stay in the Amazon Rainforest. Mostly for sound. But, the thing put out such a solid breeze. The battery is long lasting and easily replaceable. Yes, it is removable. Charges in the fan. Love this thing. Had it for going on 5 years now.
I've had mine for awhile but really it never did work much on battery power. I works OK on USB power but at a lower speed than when running from battery (even if battery is removed). Eventually, It won't work with battery. I believe there must be something wrong with the charging function. If I independently charge the battery is works. I don't know if it charges the battery while running on USB power but I've tried it both ways. I'm OK with it for now (with reduced speed while on USB power) but someday I may take it apart and see if anything dodgy is happening in the circuitry. Offhand, I think there maybe be a USB connection issue.
OPOLAR Battery Operated USB Rechargeable Desk Fan
I love the size and power of this fan. I love it and hoping there will be an updated version of this fan. I also enjoy the battery life because I can totally rely on it lasting long on hot days.