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2. Universal charger - Wikipedia

   en.wikipedia.org/wiki/Universal_charger

   Power Delivery provides the ability for 5 V devices to draw more than 7.5 W of power (the limit specified by USB Battery Charging) from USB PD-aware ports when using PD-aware USB cables. The specification also allows PD ports to provide even greater power at higher voltages over PD-aware cables; up to 36 W at 12 V and 60 W at 20 V (for micro ...

3. USB hardware - Wikipedia

   en.wikipedia.org/wiki/USB_hardware

   USB Battery Charging (BC) defines a charging port, which may be a charging downstream port (CDP), with data, or a dedicated charging port (DCP) without data. Dedicated charging ports can be found on USB power adapters to run attached devices and battery packs. Charging ports on a host with both kinds will be labeled. [51]

4. Common external power supply - Wikipedia

   en.wikipedia.org/wiki/Common_external_power_supply

   The common EPS specification relies heavily on existing USB electro-mechanical standards – especially the USB Battery Charging Specification. By the mid-2000s, many mobile phone manufacturers (as well as manufacturers of other small battery-powered devices) had already begun designing their products with the ability to use a USB port's 5 V DC ...

5. USB - Wikipedia

   en.wikipedia.org/wiki/USB

   Battery Charging Specification 1.1 Added support for dedicated chargers, host chargers behavior for devices with dead batteries; Battery Charging Specification 1.2: [28] with increased current of 1.5 A on charging ports for unconfigured devices, allowing high-speed communication while having a current up to 1.5 A

6. 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 , amperes, current, for how long and what to do when charging is complete—depends on the size and type of the battery being charged.

7. Lightning (connector) - Wikipedia

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

   The Lightning connector is used to connect Apple mobile devices like iPhones, iPads, and iPods to host computers, external monitors, cameras, USB battery chargers, and other peripherals. Using 8 pins instead of 30, Lightning is much smaller than its predecessor.