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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.
The computer makes use of this to retrieve information about the power adapter and to change the color of the LEDs on the power adapter's connector. The Apple MagSafe power adapter's 1-Wire communication chip is located inside the MagSafe connector itself; the cable does not carry the data line to the power adapter enclosure. [18]
In the interest of improved interoperability of phone battery chargers, major manufacturers have agreed to standardize on the micro-USB connector for new phone chargers from 2010. [16] Many manufacturers make special-purpose DC power connectors for battery packs, instruments, medical equipment, communications equipment and other devices.
The adapter typically supplies power to the device through a thin electrical cord which terminates in a coaxial power connector often referred to as a "barrel plug" (so-named because of its cylindrical shape). The polarity of the adapter cord and plug must match the polarity of the device, meaning that the positive contact of the plug must mate ...
The iPhone 15 Apple claims a software bug and other issues are to blame for overheating problems with its recently-released iPhone 15 model phones, after complaints poured in shortly after the ...
Several companies have emerged as prominent manufacturers and brands specializing in mobile phone accessories. Anker: Known for chargers, power banks, and cables. Baseus: A Chinese brand offering chargers, cables, car mounts, and audio products. [4] Belkin: Headquartered in California, offers chargers, cables, and cases.
Rapid charging results in even faster recharge times and is limited only by available AC power, battery type, and the type of charging system. [20] Onboard EV chargers (change AC power to DC power to recharge the EV's pack) can be: Isolated: they make no physical connection between the A/C electrical mains and the batteries being charged. These ...
Plugs and power cords have a rated voltage and current assigned to them by the manufacturer. Using a plug or power cord that is inappropriate for the load may be a safety hazard. For example, high-current equipment can cause a fire when plugged into an extension cord with a current rating lower than necessary.