With the launch of the new iPhone 13 at Apple’s September event, we were hoping to see one much-wanted feature: reverse wireless charging. Unfortunately, while the technology has apparently been found in the iPhone 12 (according to the US Federal Communications Commission) and can be used to reverse charge Apple’s MagSafe Battery Pack, it hasn’t been made more widely available. So what is it and how does it work?
How wireless charging works
Wireless charging isn’t exactly new: it was first demonstrated over 100 years ago by Nikola Tesla, and if you have an electric toothbrush you’ve probably got a wireless charger in the bathroom. The technology hasn’t really changed much over the decades. It’s just got more efficient. When we talk about wireless charging in a phone or tablet context, we’re talking about using electromagnetism: it’s possible to transmit electricity via radio frequencies, but it isn’t powerful or practical enough for everyday use.
Electromagnetic charging consists of a transmitter and one or more receivers. The transmitter, which is your wireless charging pad or puck, creates an oscillating magnetic field. When they’re close enough, that magnetic field induces a current in the coiled wire loops inside the receivers. That current can then be used to recharge the battery or even power small electronic devices.
Diese Geschichte stammt aus der November 2021-Ausgabe von MacFormat UK.
Starten Sie Ihre 7-tägige kostenlose Testversion von Magzter GOLD, um auf Tausende kuratierte Premium-Storys sowie über 8.000 Zeitschriften und Zeitungen zuzugreifen.
Bereits Abonnent ? Anmelden
Diese Geschichte stammt aus der November 2021-Ausgabe von MacFormat UK.
Starten Sie Ihre 7-tägige kostenlose Testversion von Magzter GOLD, um auf Tausende kuratierte Premium-Storys sowie über 8.000 Zeitschriften und Zeitungen zuzugreifen.
Bereits Abonnent? Anmelden
Mac hardware
We help to solve your hardware hassles, from interrupted upgrades to running diagnostics
Give your iPhone a whole new look in iOS 18
Make your iPhone uniquely you
iPhone 16
Apple Intelligence-ready smartphone for the rest of us
Apple Watch Series 10
10th anniversary Watch is now slimmer with an even bigger display
AirPods 4
Apple's most affordable AirPods remain a brilliant buy
We. HEAR Pro
Room-filling sound from this stylish wireless speaker
HiDock H1
An impressive 11-port AI audio dock for conferencers
Adobe Premiere Elements 2025
Create eye-catching videos for sharing on social media
Photoshop 2024
Your imagination is the limit with this AI-powered pixel creator
Wispr Flow
Bring the power of AI dictation to DMs, documents and Discord chats