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  2. Battery charger - Wikipedia

    en.wikipedia.org/wiki/Battery_charger

    A 10-ampere-hour battery could take 15 hours to reach a fully charged state from a fully discharged condition with a 1-ampere charger as it would require roughly 1.5 times the battery's capacity. Public EV charging stations often provide 6 kW (host power of 208 to 240 V AC off a 40-ampere circuit). 6 kW will recharge an EV roughly six times ...

  3. Kilowatt-hour - Wikipedia

    en.wikipedia.org/wiki/Kilowatt-hour

    A kilowatt-hour (unit symbol: kW⋅h or kW h; commonly written as kWh) is a non-SI unit of energy equal to 3.6 megajoules (MJ) in SI units, which is the energy delivered by one kilowatt of power for one hour. Kilowatt-hours are a common billing unit for electrical energy supplied by electric utilities.

  4. Charging station - Wikipedia

    en.wikipedia.org/wiki/Charging_station

    3.68 kW 5.1 hours This is the maximum continuous power available from a CEE 7/3 ("Schuko") receptacle on a 16 A rated circuit Single-phase AC: 240 V 30 A 7.20 kW 2.6 hours Common maximum limit of public AC charging stations used in North America, such as a ChargePoint CT4000 Three-phase AC: 400 V 16 A 11.0 kW 1.7 hours

  5. Electric car charging methods - Wikipedia

    en.wikipedia.org/wiki/Electric_car_charging_methods

    The boost charger CC/CV charging algorithm is a further development of the constant current/constant voltage algorithms. Instead of using the constant voltage and current in the entire charging period, it boosts the charging efficiency through maximizing voltage in the first period, with the battery reaching approximately 30% of its nominal ...

  6. Combined Charging System - Wikipedia

    en.wikipedia.org/wiki/Combined_Charging_System

    CCS1 (Combined Charging System Combo 1) plug as used in North America. It is an extension of the J1772 standard AC charging connector. CCS Combo 1 vehicle inlet showing the J1772 and the two DC fast-charging pins Connectors: Incomplete Combo 2 (left) showing the two large direct current (DC) pins below, while the four alternating current (AC) pins for neutral and three-phase are removed, while ...

  7. Unplug these appliances that hike your electricity bill - AOL

    www.aol.com/finance/unplug-appliances-hike...

    Leaving that charger plugged into an outlet all day still uses 0.1 to 0.5 watts per hour. ... air conditioning system uses about 3,800 watts of power per hour. At $0.12 per kilowatt-hour, you're ...

  8. Tesla Supercharger - Wikipedia

    en.wikipedia.org/wiki/Tesla_Supercharger

    V3 stations were introduced in 2019 and could deliver up to 250 kW. Up to four posts can share a 350 kW charger equipment cabinet, but up to three cabinets can share power among themselves via a DC bus. In practice, in most cases, this allows each post to deliver maximum power regardless of nearby charging sessions. [8]

  9. Power factor - Wikipedia

    en.wikipedia.org/wiki/Power_factor

    For example, if the load power factor were as low as 0.7, the apparent power would be 1.4 times the real power used by the load. Line current in the circuit would also be 1.4 times the current required at 1.0 power factor, so the losses in the circuit would be doubled (since they are proportional to the square of the current).