Reply to post: @Charles 9

Oxford startup magics up metamaterials for next-gen charging

Chris Miller

@Charles 9

Yes, it's inefficient, but that's because most of the energy emitted from the charging pad doesn't reach the device. So it won't be the battery that heats up, it'll be the pad* and anything else conductive within range.

* Only slightly - you're not going to burn yourself - but it's still a waste, particularly if you think of 50 million phones in the UK alone being recharged almost daily.

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