Every summer, the same thing happens. In May, when the heat starts to show, portable fans fly off the shelves. People buy them as if they were the ultimate solution to the sweltering heat. But July arrives, with the real heat, and those same devices pile up on the discount racks. No one wants them. What's wrong with this seasonal equation? 🌡️
Battery technology falls short in the peak of summer 🔋
Most portable fans use standard lithium-ion cells, with capacities from 2000 to 5000 mAh. In May, with temperatures of 25 degrees, a charge lasts three or four hours at medium speed. In July, with 38 degrees in the shade, the battery degrades fifteen percent faster and the motor works harder to move hot air. The result is half an hour less battery life. Manufacturers don't design these devices with real heatwaves in mind. The fan turns into a desktop heater that sounds like a drone.
The handheld fan, that friend who abandons you at rush hour 😅
It's like that buddy who promises to help you move but comes down with a fever on the big day. The portable fan works great in an air-conditioned office. But in the supermarket queue at three in the afternoon, it decides its mission is to warm your hand and remind you that you didn't buy the battery-powered model. The worst part is that the noise it makes convinces everyone you're using a miniature hair dryer. By July, you're better off with a classic hand fan or a cold shower.