Wire­less power: What you should know >

Mac Format - - WIFI SECRETS -

If you’ve been cast­ing a jeal­ous eye over the wire­less charg­ing ca­pa­bil­ity of the new Sam­sung S7 smart­phone, you’re not alone. Sit it on a com­pat­i­ble charg­ing sta­tion or pad and you’ll be able to wit­ness the magic of elec­tro­mag­netic en­ergy trans­fer be­ing used to fill up their bat­ter­ies. So, why not the iPhone?

One pos­si­ble rea­son is that there are sim­ply too many com­pet­ing tech­nolo­gies out there and Ap­ple is wait­ing for the in­dus­try to set­tle on a stan­dard it feels con­fi­dent us­ing. That looks more likely now with the for­ma­tion of the AirFuel Al­liance (airfuel.org), which aims to do ex­actly that. An­other is­sue is that wire­less charg­ing tech­nol­ogy isn’t all that wire­less: de­vices still have to be in touch­ing dis­tance of their charg­ers to work. There are tech­nolo­gies out there though, such as WiTric­ity (witric­ity.com), which may one day en­able de­vices to be charged wire­lessly from up to sev­eral feet away. Af­ter the 3.5mm head­phone jack, will wire­less charg­ing spell the end for the iPhone’s Light­ning port?

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