Chargers that transmit wireless electricity are already widely available on the market, but they require contact with the device to be charged.
The technologies developed by the companies Energous and Powercast allow rather to recharge the batteries of several devices at a time, remotely, by radio frequencies.
Powercast says its technology operates up to 25 meters away for low-power devices.
The system, dubbed PowerSpot, quickly loses efficiency as you move away from the transmitter. Powercast concedes that its technology does not allow, for now, remotely recharge cell phones, for example.
“Our robust technology has capabilities that go beyond the limits allowed today, so our products will evolve at the speed of regulation,” said Powercast’s chief operating officer, Charles Greene, in a statement released on Tuesday.
On the same day, Energous announced the certification of its WattUp technology by the FCC. This represents a “new era of wireless charging and opens up huge opportunities for the electronics industry,” says the company.
This technology is functional up to a distance of almost a meter, but the recharge of smart phones is not there, either, at the rendezvous.
The devices can be charged only if they have a built-in chip to receive RF transmissions from the transmitter.
The two companies plan to demonstrate their concepts at Consumer Electronics Show 2018, the largest technology fair in Las Vegas.