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  2. Series and parallel circuits - Wikipedia

    en.wikipedia.org/wiki/Series_and_parallel_circuits

    A battery is a collection of electrochemical cells. If the cells are connected in series, the voltage of the battery will be the sum of the cell voltages. For example, a 12 volt car battery contains six 2-volt cells connected in series. Some vehicles, such as trucks, have two 12 volt batteries in series to feed the 24-volt system.

  3. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    (3 cells): 4.5: Two 6–7 mm wide metal strips +: shorter strip −: longer strip: H: 67 L: 62 W: 22 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 ...

  4. Vacuum tube battery - Wikipedia

    en.wikipedia.org/wiki/Vacuum_tube_battery

    The much higher available voltage of "B" batteries means that they must be handled more carefully than other battery types due to their ability to shock or burn the person handling them. In Britain and in some other countries, the "B" battery is known as the "HT" (high tension) battery. Eveready 761 "C" battery with 4.5-volt, 3-volt, 1.5-volt ...

  5. Why Do Electric Cars Still Use 12-Volt Batteries?

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  6. IUoU battery charging - Wikipedia

    en.wikipedia.org/wiki/IUoU_battery_charging

    Example charging graph. On the left: per-cell quantities. On the right: example values for a 40 Ah, 6-cell (12 V) battery. Note: schematic illustration; not based on actual measurements. IUoU is a DIN-designation [1] (DIN 41773) for a lead-acid battery charging procedure that is also known as 3-stage charging, 3-phase charging, or 3-step charging.

  7. Boost converter - Wikipedia

    en.wikipedia.org/wiki/Boost_converter

    Power for the boost converter can come from any suitable DC source, such as batteries, solar panels, rectifiers, and DC generators. A process that changes one DC voltage to a different DC voltage is called DC to DC conversion. A boost converter is a DC to DC converter with an output voltage greater than the source voltage. A boost converter is ...

  8. Rechargeable battery - Wikipedia

    en.wikipedia.org/wiki/Rechargeable_battery

    The energy used to charge rechargeable batteries usually comes from a battery charger using AC mains electricity, although some are equipped to use a vehicle's 12-volt DC power outlet. The voltage of the source must be higher than that of the battery to force current to flow into it, but not too much higher or the battery may be damaged.

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