Have you heard about Air Charge Technology or True Wireless Charging?

The dream of being able to send an electric current through the air, from one location to another, hasn’t been realized on a commercial scale, but it looks that many companies going to make it a reality very soon.

we have wireless charging via the Qi standard. But it requires your phone to be touching the charging surface. Furthermore, its charging speeds are limited to 15W—whereas modern smartphone chargers can charge up to five times faster than that.

So what is Air Charge technology? Is this the start of true wireless power?

In early 2021, some big companies like Xiaomi announced they’re working on a wireless charging solution. Unlike the Qi Wireless Charging technology, Xiaomi’s solution aims to recharge your device even if it isn’t sitting on the charging pad. So if you walk inside the room with a Mi Air Charge device, your compatible phone will automatically gain power.

Xiaomi does this by using 144 antennas in a charging box that transmits a millimeter-wave signal. The smartphone then receives this signal through 14 embedded antennas, converting it to up to 5 watts of power. The Mi Air Charge is expected to have a range of several meters and can even go through objects without a drop in charging efficiency.

Few other Tech giants like Ossia, Energous, and Humavox already had Radio Frequency wireless charging products. For example, on September 9, 2013, announced its wireless power technology built on the same principles and frequencies as Wi-Fi at TechCrunch Disrupt. Ossia’s Cota system, which was demonstrated in 2017, can charge up to 32 devices simultaneously within a range of 9 meters.

Xiaomi claimed the core of this technology lies in spatial positioning and space energy transmission. The remote charging base has 5 built-in phase interference antennas to locate the phone and transmits waves through a phase-controlled array of 144 antennas. At the same time, the receiving end on the cell phone can convert the wave into electric power. At present, Xiaomi has achieved 5-watt remote charging for multiple devices within a radius of several meters.

Xiaomi hoped that this technology can also be used in smartwatches, bracelets, and other wearable devices. The living room of the future can be completely free from wire bondage, where speakers, lamps, and other small smart home products could all be wirelessly charged.

For now, remote charging is at the concept stage, so it will take some time for commercial use. But for the smart home, smart wear such as low-power devices, this technology might actually work and significantly reduce the use of wire. In conclusion, it is very reasonable to imagine a future of wireless homes in the near future.

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