Image of Qi | Seaside

Although I was skeptical at first, I’m now sold on Qi wireless chargers that add built-in fans to keep your phone cool while charging. I thought they were screaming too much, or too weak, or too stupid, but I’m a convert after a week with the new stuff. $59.99 Kuxiu D5 Qi2.2 port recovery. Its active cooling system has prevented my phone from overheating, unlike all other Qi chargers I’ve tried. Good, given my reputation as having a very hot phone.

Last year I fried the logic board on my titanium iPhone 15 Pro. I was on a speeding train trying to change a 4K video on my phone, which was being driven from a magnet. Qi power bank. Oh, my iPhone is overheatingI thought, as the screen appeared forever. The repair cost was €660.33 (more than $750), for which I did not pay anything because it was just within the two-year warranty. Apple wouldn’t “recover” if the phone overheats, but I don’t want to test fate twice.

Heat is the enemy of batteries. High temperatures promote chemical damage to lithium-ion cells, permanently reducing the amount of money they can hold over time. The electromagnetic induction used by Qi chargers is inefficient, producing more heat than transferring electricity through a cable plugged into your phone. This heat can cause phones to lower their wireless speed to protect the battery.

Even knowing this, I keep coming back to Qi ports for washing machines and power banks because they are convenient. I also like Apple’s StandBy feature that turns my phone into a desk or bedside clock and widget when connected and charged by location.

Fortunately, companies like Anker, Aukey, ESR, and Kuxiu are starting to build faster cooling systems into their Qi chargers. They have small heat sinks and silent internal fans that blow heat to the back of your phone while it’s on the phone. This keeps the battery cool and makes it run faster. Strong magnets ensure good contact between the phone’s receiver coil and the charger’s transmitter coil for better performance and less heat waste.

The fan inside the Kuxiu D5 works quietly, but can be turned off if you prefer. The display is useful, but the slightly winky looking screen is not. I like to know when and how much money each device is drawing, in addition to the total energy consumption, but the movement is confusing when caught out of the corner of my eye. Fortunately, I can turn off the display with the push of a button.

I like that the Kuxiu D5 ships with a 45W USB-C PD charger in the box. Otherwise, you may think that any charger you have lying around supports the full output of the port, which can deliver 25W to Qi2.2-compatible phones, 2.5W to Qi-compatible watches, and 5W to Qi-compatible earphones. Compatible with several generations of phones, watches, and audio devices sold by Apple, Samsung, and others.

Kuxiu calls the D5 a “5-in-1” charger, which I find misleading since it only charges three devices at once. It seems to include a display and a fan in its volume. With this calculation, I would be happy if this was a 4-in-1 device, since the additional cost of the display will not increase the value for many people, and may cause problems down the road.

The clock recorder is also a bit silly in its over-the-top design. A short press on the port’s only button will trigger a small motor to slowly push the watch’s port to the side. I think it adds to the stability of the blocky port when traveling, but not by much, and it can be retracted when the port is plugged into the wall.

Overall the Kuxiu D5 is an excellent Qi2.2 charging port that is well-designed for fast cooling. It is also at home on the computer or at night, and is worth less than similar docks from Anker, ESRand others.

Quick cooling on Qi chargers is a great idea whose time has come. Phones sold by Huawei, Xiaomi, and Oppo support wireless speeds of 50W and above. for years. But it is possible only if they are installed on the exhaust ports that can remove all the hot debris. Now the Qi management board is working a global standard of 50W released by 2028. Manufacturers may need to adopt more efficient cooling to keep up with increasing charging rates.

Well it’s me. Whatever it takes to keep the life force Qi flowing.

All photos by Thomas Ricker / The Verge