Review on 💨 innobay USB/Rechargeable Personal Fan with LED Light - Quiet & Powerful (4-inch, Black) by Black Croom

This is a first review. The fan moves a lot of air. I just received it so I can't have an opinion on its durability. Some reviewers have stated that they cannot find replacement batteries. I believe this is because they are trying to use protected 18650 batteries, which are longer than the fan's battery box. You must use unprotected 18650 batteries. I have verified that some Panasonic NCR18650B batteries that I have on hand fit the battery compartment and power the fan with no problem. The fan comes with a Samsung ICR18650-26J battery. I can't find this J version but I found many other ICR18650-26 battery versions on Revain. However, I will not buy ICR18650 batteries in the future as my NCR18650B batteries are working fine. ICR18650 batteries are the older technology and from my online readings the most dangerous. Online blogs have also pointed out that the ICR18650's battery can be moody, which could explain some reviewers' trouble keeping the battery charged. I plan to buy NCR18650BF batteries as spares for this fan in the future, which is even newer technology than the NCR18650B battery. It will also likely fit in the fan bay as it needs to be the same length as the NCR18650B battery. One final note, these 18650 rechargeable batteries ship almost empty, requiring you to charge them for hours to keep them fully charged. My smart lithium battery charger confirmed that the battery that came with the fan was almost dead right out of the box.