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  2. Coaxial power connector - Wikipedia

    en.wikipedia.org/wiki/Coaxial_power_connector

    The outer terminal is usually GND pin and inner is V n+ is a voltage supply pin, ... Newer HP and Dell laptop computers 4.75 1.70 9.5 C EIAJ-03 6.3–10.5 V

  3. Smart battery - Wikipedia

    en.wikipedia.org/wiki/Smart_battery

    A smart battery or a smart battery pack is a rechargeable battery pack with a built-in battery management system (BMS), usually designed for use in a portable computer such as a laptop. [ 1 ] [ 2 ] In addition to the usual positive and negative terminals, a smart battery has two or more terminals to connect to the BMS; typically the negative ...

  4. USB hardware - Wikipedia

    en.wikipedia.org/wiki/USB_hardware

    USB Battery Charging (BC) defines a charging port, which may be a charging downstream port (CDP), with data, or a dedicated charging port (DCP) without data. Dedicated charging ports can be found on USB power adapters to run attached devices and battery packs.

  5. IEC 60320 - Wikipedia

    en.wikipedia.org/wiki/IEC_60320

    A variety of different kinds of IEC 60320 plugs and sockets. IEC 60320 Appliance couplers for household and similar general purposes [1] is a set of standards from the International Electrotechnical Commission (IEC) specifying non-locking connectors for connecting power supply cords to electrical appliances of voltage not exceeding 250 V (a.c.) and rated current not exceeding 16 A. [1 ...

  6. DC connector - Wikipedia

    en.wikipedia.org/wiki/DC_connector

    Often pins 1 and 2 will be negative, 3 and 4 positive for a higher current rating. Female connectors are used as supply and male connectors are used on loads. Most battery belts and power supplies output 13.2 V, but equipment can usually handle a range of 11–18 volts to accommodate battery packs of varying voltages and charging while operating.

  7. Battery terminal - Wikipedia

    en.wikipedia.org/wiki/Battery_terminal

    Automotive batteries typically have one of three types of terminals.. In recent years, the most common design was the SAE Post, consisting of two lead posts in the shape of truncated cones, positioned on the top of the battery, with slightly different diameters to ensure correct electrical polarity.

  8. IC power-supply pin - Wikipedia

    en.wikipedia.org/wiki/IC_power-supply_pin

    IC power-supply pins denote a voltage and current supply terminals in electric, electronics engineering, and in integrated circuit design. [a] Integrated circuits (ICs) have at least two pins that connect to the power rails of the circuit in which they are installed. These are known as the power-supply pins. However, the labeling of the pins ...

  9. Power supply unit (computer) - Wikipedia

    en.wikipedia.org/wiki/Power_supply_unit_(computer)

    External power supply could send data about itself (power, current and voltage ratings) to the computer. For example, genuine Dell power source uses 1-Wire protocol to send data by third wire to the laptop. The laptop then refuses a non-matching adapter. [35] Some computers use a single-voltage 12 V power supply.

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