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  2. Module:Convert/documentation/conversion data - Wikipedia

    en.wikipedia.org/wiki/Module:Convert/...

    The alttype field allows conversion between units of different type, provided each unit is whitelisted to allow the conversion. As at December 2013, the following energy units have alttype = "torque" (the first line consists of different units, while the second line consists of aliases for units in the first line):

  3. Template:Convert/list of units/energy - Wikipedia

    en.wikipedia.org/wiki/Template:Convert/list_of...

    This Wikipedia page provides a list of units of energy used in the template for converting measurements.

  4. Energy density Extended Reference Table - Wikipedia

    en.wikipedia.org/wiki/Energy_density_Extended...

    battery, Nickel–metal hydride (NiMH), low power design as used in consumer batteries [29] 0.4: 1.55: Liquid Nitrogen: 0.349: Water – Enthalpy of Fusion: 0.334: 0.334: battery, Zinc–Bromine flow (ZnBr) [30] 0.27: battery, Nickel–metal hydride (NiMH), High-Power design as used in cars [31] 0.250: 0.493: battery, Nickel–Cadmium (NiCd ...

  5. Electrical energy - Wikipedia

    en.wikipedia.org/wiki/Electrical_energy

    The amount of work in joules is given by the product of the charge that has moved, in coulombs, and the potential difference that has been crossed, in volts. [ 1 ] Electrical energy is usually sold by the kilowatt hour (1 kW·h = 3.6 MJ) which is the product of the power in kilowatts multiplied by running time in hours.

  6. Electric power conversion - Wikipedia

    en.wikipedia.org/wiki/Electric_power_conversion

    In electrical engineering, power conversion is the process of converting electric energy from one form to another. A power converter is an electrical device for converting electrical energy between alternating current (AC) and direct current (DC). It can also change the voltage or frequency of the current.

  7. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    This battery, introduced in 1901, was very common in continental Europe until the 1970s. It usually contains three B cells in series. In Switzerland as of 2008, 4.5-volt batteries account for only 1% of primary battery sales. [89] PP3, 9-volt, or E [90] Radio battery Smoke alarm battery Square battery Transistor battery 006P MN1604