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  2. USB - Wikipedia

    en.wikipedia.org/wiki/USB

    Micro-USB Cables and Connectors Specification 1.01; InterChip USB Supplement; On-The-Go Supplement 1.3 USB On-The-Go makes it possible for two USB devices to communicate with each other without requiring a separate USB host; Battery Charging Specification 1.1 Added support for dedicated chargers, host chargers behavior for devices with dead ...

  3. USB hardware - Wikipedia

    en.wikipedia.org/wiki/USB_hardware

    Sleep-and-charge USB ports can be used to charge electronic devices even when the computer that hosts the ports is switched off. Normally, when a computer is powered off the USB ports are powered down. This feature has also been implemented on some laptop docking stations allowing device charging even when no laptop is present. [89]

  4. Universal charger - Wikipedia

    en.wikipedia.org/wiki/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.

  5. Common external power supply - Wikipedia

    en.wikipedia.org/wiki/Common_external_power_supply

    Common external power supply and the USB Standard-A and Micro-B ends of the detachable cable. The common external power supply (Common EPS) was a European Commission (EC) specification for a universal charger for smartphones sold within the European Union.

  6. AC adapter - Wikipedia

    en.wikipedia.org/wiki/AC_adapter

    For USB-powered devices, it is 5 volts. Later, battery charging protocols such as Quick Charge by Qualcomm and USB Power Delivery started allowing charged devices to request different voltages suited for their needs, usually higher voltages to increase power without adding heat to the copper wires of the USB cable. In the past, "SuperCharge" by ...

  7. USB 3.0 - Wikipedia

    en.wikipedia.org/wiki/USB_3.0

    USB 3.0 ports may implement other USB specifications for increased power, including the USB Battery Charging Specification for up to 1.5 A or 7.5 W, or, in the case of USB 3.1, the USB Power Delivery Specification for charging the host device up to 100 W. [15]

  8. USB hub - Wikipedia

    en.wikipedia.org/wiki/USB_hub

    Some USB hubs may support power delivery (PD) to charge a laptop battery, if self-powered and certified to do so, but may be referred to as a simple docking station due to the similar nature of only needing one connection to charge the battery and connect peripherals.

  9. Quick Charge - Wikipedia

    en.wikipedia.org/wiki/Quick_Charge

    Quick Charge is a proprietary technology that can charge battery-powered devices, primarily mobile phones, at power levels exceeding the 7.5 watts (5 volts at 1.5 amps) supported by the USB BC 1.2 standard, using existing USB cables. The higher voltage available allows more power (watts) to be supplied through wires without excessive heating.