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2. Battery charger - Wikipedia

   en.wikipedia.org/wiki/Battery_charger

   A mobile phone plugged in to an AC adapter for charging. 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 ...

3. Automobile auxiliary power outlet - Wikipedia

   en.wikipedia.org/wiki/Automobile_auxiliary_power...

   An automobile auxiliary power outlet (also known as car cigarette lighter or auxiliary power outlet[ 1]) in an automobile was initially designed to power an electrically heated cigarette lighter, [ 1] but became a de facto standard DC connector to supply electrical power for portable accessories used in or near an automobile directly from the ...

4. History of mobile phones - Wikipedia

   en.wikipedia.org/wiki/History_of_mobile_phones

   The Micro-USB interface is found on chargers for feature phones and smartphones. The USB-C interface is increasingly found on (chargers for) smartphones. [73] Before a universal charger standard was agreed upon in the late 2000s, users needed an adapter which was often proprietary by brand or manufacturer to charge their battery.

5. Universal charger - Wikipedia

   en.wikipedia.org/wiki/Universal_charger

   Universal charger. Universal charger or common charger refers to various projects to standardize the connectors of power supplies, particularly for battery-powered devices. Since the publication of the USB Power Delivery standard in 2012, and the USB-C connector in 2014, USB-C has become a widespread standard for charging mobile phones.

6. 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 ...

7. Mobile phone accessories - Wikipedia

   en.wikipedia.org/wiki/Mobile_phone_accessories

   Mobile phone chargers have gone through a diverse evolution that has included cradles, plug-in cords and obscure connectors. However, devices built between 2010 and 2020 generally use micro-USB connectors, while newer devices tend to use USB-C. Apple devices often use proprietary connectors.