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2. Automobile auxiliary power outlet - Wikipedia

   en.wikipedia.org/wiki/Automobile_auxiliary_power...

   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 ...

3. NEMA connector - Wikipedia

   en.wikipedia.org/wiki/NEMA_connector

   AC power plugs and sockets; BS 1363, British three-pin plugs and sockets; CEE 7 standard AC plugs and sockets; IEC 60320, an international standard for power "inlet" connectors on equipment; Industrial and multiphase power plugs and sockets § North America, which includes some non-NEMA plugs and sockets used in North America; Mains electricity ...

4. Battery charger - Wikipedia

   en.wikipedia.org/wiki/Battery_charger

   Charging a 12 V lead–acid car battery A mobile phone plugged in to an AC adapter for charging. A battery charger, recharger, or simply charger, [1] [2] is a device that stores energy in an electric battery by running current through it.

5. DC connector - Wikipedia

   en.wikipedia.org/wiki/DC_connector

   The polarity for 12 V DC sockets is center pin positive (+), outer collar negative (−). Reversed polarity will damage some electronic devices. Although the nominal voltage of a 12 V lead acid battery is 12 V DC, when the engine is running the car's battery charging system will bring the system voltage to 13.8 V DC or higher. [10]

6. AC adapter - Wikipedia

   en.wikipedia.org/wiki/AC_adapter

   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.

7. Coaxial power connector - Wikipedia

   en.wikipedia.org/wiki/Coaxial_power_connector

   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.