Check out "Fig 2" on this page (coil diagram): https://ifixit.org/blog/14883/what-finally-killed-airpower/ https://ifixit.org/blog/14883/what-finally-killed-air

Check out "Fig 2" on this page (coil diagram): https://ifixit.org/blog/14883/what-finally-killed-airpower/ https://ifixit.org/blog/14883/what-finally-killed-airpower/ Or "Fig 5" on this page: https://appleinsider.com/articles/19/02/19/airpods-wireless-charging-case-may-not-need-precise-location-on-a-charging-pad https://appleinsider.com/articles/19/02/19/airpods-wireless-... P.S. Glad to finally find a technical comment, after scrolling through 200 marketing/business comments. :)