https://stream.echo6.co/videos/watch/36bb2add-4d1a-42d0-8465-99dd9d9f6277 Running the numbers on the W-Charge Infrared laser wireless charging system, does it work?, is it practical?, what is the efficiency?, how much power can it deliver?, is it dangerous? And the laser power is HOW MUCH?! CORRECTION: The laser output power was stated incorrectly, it was assuming the input power to the laser when it should have been the optical output power. The correct number for a 45% solar cell and zero other losses is 11.1W laser power, not 18W. Still the same class of laser and just as dangerous. In response to the Linus Tech Tips demonstration. Also some talk on the Energous RF Wireless energy boondoggle. Forum: http://www.eevblog.com/forum/blog/eevblog-1092-wi-charge-ir-wireless-charging-fact-or-fiction/ Linus Tech Tips video: https://www.youtube.com/watch?v=YeNXRD8eziA http://www.wi-charge.com Wi-Charge Patents: https://patents.google.com/patent/US9742223/ https://patents.google.com/patent/WO2007036937A3/ https://patents.google.com/patent/US20100320362A1/ https://patents.google.com/patent/US20140126603A1/ IR Dangers: https://www.intersil.com/content/dam/Intersil/documents/an17/an1737.pdf https://www.esa.int/gsp/ACT/doc/POW/ACT-RPR-NRG-2009-SPS-ICSOS-concepts-for-laser-WPT.pdf https://www.extremetech.com/extreme/252295-layered-solar-cell-can-capture-wavelengths-solar-spectrum http://brolis-semicon.com/near-infrared-components-systems/ Energous Scam: https://www.wirelesspowerconsortium.com/data/downloadables/2/0/3/1/six-billion-dollar-watt-wpc-3jun18-cmb-pdf.pdf EEVblog Main Web Site: http://www.eevblog.com The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2 Support the EEVblog through Patreon! http://www.patreon.com/eevblog Stuff I recommend: https://kit.com/EEVblog/ Donate With Bitcoin & Other Crypto Currencies! https://www.eevblog.com/crypto-currency/ T-Shirts: http://teespring.com/stores/eevblog Likecoin – Coins for Likes: https://likecoin.pro/@eevblog/dil9/hcq3 💗 Likecoin – Coins for Likes: https://likecoin.pro/@eevblog/dil9/hcq3 Sat, 02 May 2026 23:35:09 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/36bb2add-4d1a-42d0-8465-99dd9d9f6277 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.