Review on 🏕️ REENUO 5000mAh Camping Fan with LED Lights: Long-lasting Portable Tent Fan with Hanging Hook and Rechargeable Battery for Home & Office by Ryan Gordon

The fan works as advertised and I love it, but there is one interesting feature that I cannot explain. The fan came with two 2200mah (8.14Wh) batteries, first thing I replaced them with 9800mah (38.9Wh) batteries (THIS WAS A MISTAKE), with a bigger battery the device only has 3.5 hours works. and then finished, I checked the batteries and they still had plenty of charge but the fan didn't start. When I replaced them with the original ones that came with the fan, the fan ran straight away at FAST speed for 9 hours. As I said, I can't explain it, but DO NOT REPLACE THE BATTERIES, use the ones provided.