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2. Wireless power transfer - Wikipedia

   en.wikipedia.org/wiki/Wireless_power_transfer

   When the phone is set on the pad, a coil in the pad creates a magnetic field [1] which induces a current in another coil, in the phone, charging its battery. Wireless power transfer ( WPT ), wireless power transmission, wireless energy transmission ( WET ), or electromagnetic power transfer is the transmission of electrical energy without wires ...

3. Inductive charging - Wikipedia

   en.wikipedia.org/wiki/Inductive_charging

   Inductive charging. The primary coil in the charger induces a current in the secondary coil in the device being charged. Inductive charging (also known as wireless charging or cordless charging) is a type of wireless power transfer. It uses electromagnetic induction to provide electricity to portable devices. Inductive charging is also used in ...

4. Solar cell phone charger - Wikipedia

   en.wikipedia.org/wiki/Solar_cell_phone_charger

   Solar cell phone charger Solar cell phone charger. Solar cell phone chargers use solar panels to charge cell phone batteries.They can be used when no electricity supply is available—either mains or, for example, a vehicle battery—and are sometimes suggested as a way to charge phones without consuming mains electricity, unlike electrical cell phone chargers.

5. Rezence (wireless charging standard) - Wikipedia

   en.wikipedia.org/wiki/Rezence_(wireless_charging...

   Rezence (wireless charging standard) Official Rezence brandmark, the A4WP uses this mark of interoperability to show that various devices are compatible with Rezence systems. Rezence (pronounced reh-zense) was an interface standard developed by the WiPower (A4WP) for wireless electrical power transfer based on the principles of magnetic resonance.

6. Electric road - Wikipedia

   en.wikipedia.org/wiki/Electric_road

   Electric road. An electric road, eroad, e-roadway, or electric road system (ERS) is a road which supplies electric power to vehicles travelling on it. Common implementations are overhead power lines above the road, ground-level power supply through conductive rails, and dynamic wireless power transfer (DWPT) through resonant inductive coils or ...

7. WiTricity - Wikipedia

   en.wikipedia.org/wiki/WiTricity

   WiTricity Corporation. WiTricity Corporation is an American wireless charging technology company based in Watertown, Massachusetts. The Massachusetts Institute of Technology (MIT) spin-off was founded by professor Marin Soljačić in 2007. WiTricity technology allows wireless power transfer over distance via magnetic resonance and the company ...

8. Qi (standard) - Wikipedia

   en.wikipedia.org/wiki/Qi_(standard)

   The standard allows compatible devices, such as smartphones, to charge their batteries when placed on a Qi charging pad, which can be effective over distances up to 4 cm (1.6 in). [2] The Qi standard is developed by the Wireless Power Consortium. [1] As a universal, open standard Qi-enabled devices are able to connect to Qi chargers from any ...

9. MagSafe (wireless charger) - Wikipedia

   en.wikipedia.org/wiki/MagSafe_(wireless_charger)

   The MagSafe Charger is a single charging pad that contains recyclable rare-earth magnets surrounding a Qi wireless charging coil attached to a 1m USB-C cable. The MagSafe Charger delivers up to 15 W of power on the iPhone 12, 13, 14 and 15 series, with the exception of the iPhone 12 Mini and 13 Mini, which support 12 W. The Wall Street Journal found MagSafe charged at half the speed of a 20W ...