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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 first version of the MagSafe Charger released in 2020 delivers up to 15 W of power on the iPhone 12/12 Pro and newer, with the exception of the iPhone 12 Mini and 13 Mini, which support 12 W. [11] The Wall Street Journal found ...

3. Battery charger - Wikipedia

   en.wikipedia.org/wiki/Battery_charger

   A battery charger, recharger, or simply charger, [1][2] is a device that stores energy in an electric battery by running current through it. The charging protocol—how much voltage, current, for how long and what to do when charging is complete—depends on the size and type of the battery being charged. Some battery types have high tolerance ...

4. 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 ...

5. Charge cycle - Wikipedia

   en.wikipedia.org/wiki/Charge_cycle

   A charge cycle is the process of charging a rechargeable battery and discharging it as required into a load. The term is typically used to specify a battery's expected life, as the number of charge cycles affects life more than the mere passage of time. Discharging the battery fully before recharging may be called "deep discharge"; partially ...

6. Apple AirPods 4 review: Still the top choice for a reason

   www.aol.com/finance/apple-airpods-4-review-still...

   Battery and charging Apple rates the AirPods 4 and AirPods 4 with ANC’s battery life at five hours on a single charge. That drops to four hours if you have ANC active on the AirPods 4 with ANC.

7. Lithium polymer battery - Wikipedia

   en.wikipedia.org/wiki/Lithium_polymer_battery

   Lithium polymer battery. Lithium polymer battery. A lithium polymer battery used to power a smartphone. Specific energy. 100–265 W·h / kg (0.36–0.95 MJ/kg)[1] Energy density. 250–670 W·h / L (0.90–2.63 MJ/L)[1] A lithium polymer battery, or more correctly, lithium-ion polymer battery (abbreviated as LiPo, LIP, Li-poly, lithium-poly ...