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Apple offered an EmPower MagSafe power adapter for their MacBook, MacBook Pro, and MacBook Air lines of notebooks, and also included a cigarette lighter socket adapter. However, this system would only run the computer without charging the computer's battery, and Apple warned users to never plug this device into a car's cigarette lighter outlet ...
The addition is a 3 ⁄ 16-inch (4.8 mm) diameter round or U-shaped ground pin, 1 ⁄ 8 in (3.2 mm) longer than the power blades (so the device is grounded before the power is connected) and located from them by 1 ⁄ 4 in (6.4 mm) edge-to-edge or 15 ⁄ 32 in (11.9 mm) center-to-center.
AC power plugs and sockets connect devices to mains electricity to supply them with electrical power. A plug is the connector attached to an electrically-operated device, often via a cable. A socket (also known as a receptacle or outlet) is fixed in place, often on the internal walls of buildings, and is connected to an AC electrical circuit ...
BS 546, Two-pole and earthing-pin plugs, socket-outlets and socket-outlet adaptors for AC (50–60 Hz) circuits up to 250 V is an older British Standard for three-pin AC power plugs and sockets. Originally published in April 1934, it was updated by a 1950 edition which is still current, [ 1 ] with eight amendments up to 1999.
Dock connector on a 2011's HP EliteBook laptop. A dock connector is an electrical connector used to attach a mobile device simultaneously to multiple external resources. Dock connectors typically carry a variety of signals and power, through a single connector, to simplify the process of docking the device.
AC power plugs and sockets, devices that allow electrically operated equipment to be connected to the primary alternating current (AC) power supply in a building NEMA connector, the standard for much of the Americas and Japan for such plugs and sockets; Industrial power plug; DC connector, an electrical connector for supplying direct current ...
A coaxial power connector is an electrical power connector used for attaching extra-low voltage devices such as consumer electronics to external electricity. Also known as barrel connectors , concentric barrel connectors or tip connectors , these small cylindrical connectors come in an enormous variety of sizes.
The voltage of the power outlet is usually near 12 V DC, and may be elevated between 13.5 V to 15 V while the engine is running. On trucks, the voltage of the power outlet may be near 24 V DC. The 12 V power circuit is protected by a car fuse, often rated at 10 to 20 amperes, which provides 120 to 240 watts of power. Large appliances such as ...