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A common coaxial power connector, male (left) and female (right), 5.5 × 2.5 mm. Connector gender is determined by the center contact. Note: connectors depicted do not connect with each other.
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.
An AC adapter or AC/DC adapter (also called a wall charger, power adapter, power brick, or wall wart) [1] is a type of external power supply, often enclosed in a case similar to an AC plug. [2] AC adapters deliver electric power to devices that lack internal components to draw voltage and power from mains power themselves.
Charging requires USB power sources that output 12V, 15V, or 20V. [23] Most cell phone and tablet chargers at the time did not support these voltage levels, however USB-PD Chargers sold today that offer at least 45W output are able to charge lower-voltage Surface devices while in use.
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Some devices, when plugged into charging ports, draw even more power (10 watts) than the Battery Charging Specification allows—the iPad is one such device; [107] it negotiates the current pull with data pin voltages. [55] Barnes & Noble Nook Color devices also require a special charger that runs at 1.9 A. [108]
Male Mini-VGA plug on top of an Apple laptop, female port is second from right. Mini-VGA (used for laptops) Used for laptops, especially from Apple Computer and some from Sony. AV Multi (gold-plated male plug) AV Multi: Sony proprietary. Combines composite video, S-Video, RGsB/YP B P R (both use same pins) and stereophonic sound (two analog ...