A wireless charging solution that works, wirelessly

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Wireless charging is the new buzzword in tech industry. Though the technology dates back to the days of Nokia 920 (released in 2012), its adoption by Apple in iPhone 8, 8 Plus and iPhone X in 2017 has revived interest in it once again. Even as the tech allows users to charge their smartphone without involving cables, it has several limitations. Users have to keep the smartphone docked on the induction table or charging dock for the entire duration of charging.

Energous’ new wireless transmitter can overcome this limitation by allowing wireless charging from a distance of over three feet. The California based company has developed a new transmitter which can convert electric currents into radio frequencies and beam them to devices with built in receivers to accept it. The transmitter has been approved by FCC (Federal Communications Commission), an agency which regulates all laws and licenses for interstate communication in US, and will be showcased at the upcoming CES (Consumer Electronics Show) 2018 in Las Vegas on 9-12 January.

What makes the new Wattup Transmitter better than existing forms of wireless charging based on the widely accepted Qi charging standard is the fact that it works without physical contact between the smartphone that is being charged and the inducting device. The Qi charging standard, used in new iPhones, works by sending electric current from the transmitting coil on the charger to the receiver coil on the glass back panel of the smartphone which supports wireless charging. Energous hasn’t yet specified the wireless standard involved in the process.

Most wireless chargers, barring the Apple’s Air Power charger, can charge only one device at a time. If a user get a call or wants to check something, and lift the device, the charging will stop. Wattup Transmitter can charge multiple device simultaneously (but with more devices being charged, the power flow is likely to get slower) by creating a bigger electromagnetic field and a smartphone, tablet or earphone with the compatible receiver inside that field can be charged from a distance of up to 3 feet. So a user can use them and charge them simultaneously.

The new tech overcomes a major imitation of wireless technology, but it doesn’t improve charging speed, which means your device will still charge slower than USB driven charging.

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