Watt? You thought the wireless charging war was over? It ain't even begun

www.theregister.co.uk | 1/10/2018 | Staff
vpp1219 (Posted by) Level 3
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The inductive charging standards battle of the past few years is formally over, only weeks after Apple entered the fray. But don't be thinking the wireless charging war is over. Things might be just hotting up.

Last week wireless charging company Powermat quietly joined the Wireless Power Consortium, which certifies Qi-compatible products. Apple built Qi charging into all three new iPhones in September, having already supported it in its Watch since it launched in 2015.

Stalwart - PMA - Standard - Powermat - Flag

Formerly a stalwart of the PMA charging standard, Powermat raised the white flag by declaring that "Qi has become the dominant wireless charging standard on the market, and the recently launched Apple iPhone lineup is evidence of this success," in a canned statement. "By joining WPC, it further unifies the wireless charging ecosystem behind the Qi global standard".

However, inductive charging requires charger and device to be in contact, or as good as. More ambitious ventures are seeking to make good on Nikolai Tesla's work* - electricity over a distance. Companies are developing far more advanced, and useful charging using magnetic resonance and RF charging – different technologies which allow charging at a much greater distance.

Energous - IPO

Energous has been quiet since its IPO in 2015. Until now.

Shortly before Christmas, a communique from mag res militants Airfuel vowed never to surrender.

Energous - Stock - Ticker - WATT - Devices

The much-talked about newcomer Energous, which went public in in 2015 under the stock ticker "WATT", claimed to be working on powering multiple devices from "mid field" ranges, such as three feet (91cm) away, to "far field" transmission, over some 15 feet (4.5m) or in a 30 foot (9m) radius circle or "envelope".

After a quiet period,...
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