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  2. University of North Sumatra - Wikipedia

    en.wikipedia.org/wiki/University_of_North_Sumatra

    Colors. Green. Nickname. USU. Website. usu .ac .id. The University of North Sumatra ( Indonesian: Universitas Sumatera Utara or USU) is a public university located in the city of Medan in North Sumatra, Indonesia . It is situated in Padang Bulan, in the Medan Baru subdistrict of Medan, close to the City Centre, with a total area of 122 hectares.

  3. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    The full battery designation identifies not only the size, shape and terminal layout of the battery but also the chemistry (and therefore the voltage per cell) and the number of cells in the battery. For example, a CR123 battery is always LiMnO 2 ('Lithium') chemistry, in addition to its unique size.

  4. Electric battery - Wikipedia

    en.wikipedia.org/wiki/Electric_battery

    An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections [1] for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. [2] The terminal marked negative is the source of electrons that will ...

  5. Battery terminal - Wikipedia

    en.wikipedia.org/wiki/Battery_terminal

    Purchasing the wrong configuration may prevent battery cables from reaching the battery terminals. Marine battery terminals. Marine batteries typically have two posts, a 3/8"-16 threaded post for the positive terminal, and a 5/16"-18 threaded post for the negative terminal. [citation needed] Zinc battery terminals. Zinc battery terminals are an ...

  6. Voltage source - Wikipedia

    en.wikipedia.org/wiki/Voltage_source

    Voltage source. A voltage source is a two- terminal device which can maintain a fixed voltage. [1] An ideal voltage source can maintain the fixed voltage independent of the load resistance or the output current. However, a real-world voltage source cannot supply unlimited current. A voltage source is the dual of a current source.

  7. Rechargeable battery - Wikipedia

    en.wikipedia.org/wiki/Rechargeable_battery

    Rechargeable battery. A battery bank used for an uninterruptible power supply in a data center. A rechargeable lithium polymer mobile phone battery. A common consumer battery charger for rechargeable AA and AAA batteries. A rechargeable battery, storage battery, or secondary cell (formally a type of energy accumulator ), is a type of electrical ...

  8. DIN 72552 - Wikipedia

    en.wikipedia.org/wiki/DIN_72552

    from 2nd battery and 12/24 V relay: 31 return to battery- or direct to ground 31a return to battery- 12/24 V relay 31b return to battery- or ground through switch 85d 31c return to battery- 12/24 V relay 31, 31a Electric motors; 32 return 31 33 main terminal (swap of 32 and 33 is possible) 30 33a limit 33b field 54e 33f 2. slow rpm: 33g 3. slow ...

  9. Unigrid wants to make batteries cheaper and safer using ...

    techcrunch.com/2024/06/13/unigrid-wants-to-make...

    If there’s one thing holding back batteries, it’s cost. The most widespread type of battery, lithium-ion, still costs around $140 per kilowatt-hour for a pack.

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