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  2. Ampere-hour - Wikipedia

    en.wikipedia.org/wiki/Ampere-hour

    1.079 252 8488 × 10 13 statC An ampere-hour or amp-hour (symbol: A⋅h or A h ; often simplified as Ah ) is a unit of electric charge , having dimensions of electric current multiplied by time, equal to the charge transferred by a steady current of one ampere flowing for one hour, or 3,600 coulombs .

  3. Watt-hour per kilogram - Wikipedia

    en.wikipedia.org/wiki/Watt-hour_per_kilogram

    As of June 2022, the highest peer reviewed and published results for an electric car battery is an energy density 350 W⋅h/kg, which has achieved 500 cycles with less than 20% capacity fade. [1] This compares to supercapacitors that are typically rated between 3 and 10 W⋅h/kg, [ 2 ] with the best commercially available supercapacitors as ...

  4. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    Also called CR1/3N because it is 13 rd the height of an alkaline N cell, and a stack of three of them will form a battery with the same dimensions as an N cell, but with 9 V terminal voltage. Such 9 V batteries in a single package do exist but are rare and only usually found in specialist applications; they can be referred to as 3CR1/3N.

  5. Template:Convert/list of units/energy/Wh - Wikipedia

    en.wikipedia.org/.../list_of_units/energy/Wh

    Wh Wh 1.0 Wh (3.6 kJ) W.h (W·h, W-h) W⋅h milliwatt-hour: mWh mWh 1.0 ...

  6. Kilowatt-hour - Wikipedia

    en.wikipedia.org/wiki/Kilowatt-hour

    All the SI prefixes are commonly applied to the watt-hour: a kilowatt-hour (kWh) is 1,000 Wh; a megawatt-hour (MWh) is 1 million Wh; a milliwatt-hour (mWh) is 1/1,000 Wh and so on. The kilowatt-hour is commonly used by electrical energy providers for purposes of billing, since the monthly energy consumption of a typical residential customer ...

  7. Watt - Wikipedia

    en.wikipedia.org/wiki/Watt

    1 terawatt hour per year = 1 × 10 12 W·h / (365 days × 24 hours per day) ≈ 114 million watts, equivalent to approximately 114 megawatts of constant power output. The watt-second is a unit of energy, equal to the joule. One kilowatt hour is 3,600,000 watt seconds.

  8. Mass-to-charge ratio - Wikipedia

    en.wikipedia.org/wiki/Mass-to-charge_ratio

    When charged particles move in electric and magnetic fields the following two laws apply: Lorentz force law: = (+),; Newton's second law of motion: = =; where F is the force applied to the ion, m is the mass of the particle, a is the acceleration, Q is the electric charge, E is the electric field, and v × B is the cross product of the ion's velocity and the magnetic flux density.

  9. Nickel–hydrogen battery - Wikipedia

    en.wikipedia.org/wiki/Nickel–hydrogen_battery

    The open-circuit voltage is 1.55 V, the average voltage during discharge is 1.25 V. [9] While the energy density is only around one third as that of a lithium battery , the distinctive virtue of the nickel–hydrogen battery is its long life: the cells handle more than 20,000 charge cycles [ 4 ] with 85% energy efficiency and 100% faradaic ...