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  2. 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. [11] The Wall Street Journal found MagSafe charged at half the speed of a ...

  3. iPhone hardware - Wikipedia

    en.wikipedia.org/wiki/IPhone_hardware

    Some models of the iPhone support wireless charging. [31] A distinction to Android devices is that connecting an iPhone to a charger while powered off causes it to power on rather than showing a battery indicator without booting. [32] [33] Apple runs tests on preproduction units to determine battery life.

  4. Wireless power transfer - Wikipedia

    en.wikipedia.org/wiki/Wireless_power_transfer

    Wireless power transfer. Inductive charging pad for a smartphone as an example of near-field wireless 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 ...

  5. 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 ...

  6. Lightning (connector) - Wikipedia

    en.wikipedia.org/wiki/Lightning_(connector)

    This means all the latest iPad models since March 18, 2022, and iPhone models since September 22, 2023, have transitioned to USB-C. The 2nd generation AirPods Pro was updated to a USB-C charging case and the MagSafe Duo Charger and MagSafe Battery Pack, which used the Lightning connector, were discontinued. [18]

  7. iPad (6th generation) - Wikipedia

    en.wikipedia.org/wiki/IPad_(6th_generation)

    The iPad (6th generation) [4] (also referred to as the iPad 9.7-inch [5]) is a tablet computer designed, developed, and marketed by Apple Inc. It was announced on March 27, 2018, during an education-focused event at Lane Tech High School in Chicago [6] and is the successor to the fifth-generation iPad, upgraded with the Apple A10 Fusion processor and support for styluses such as Apple Pencil. [7]

  8. Memory effect - Wikipedia

    en.wikipedia.org/wiki/Memory_effect

    To the user, it appears the battery is not holding its full charge, which seems similar to memory effect. This is a common problem with high-load devices such as digital cameras and cell phones. Voltage depression is caused by repeated over-charging of a battery, which causes the formation of small crystals of electrolyte on the plates.

  9. Uninterruptible power supply - Wikipedia

    en.wikipedia.org/wiki/Uninterruptible_power_supply

    A tower type UPS with one IEC 60320 C14 input and three C13 outlets. A large data-center-scale UPS being installed by electricians. An uninterruptible power supply ( UPS) or uninterruptible power source is a type of continual power system that provides automated backup electric power to a load when the input power source or mains power fails.

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