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  2. Nine-volt battery - Wikipedia

    en.wikipedia.org/wiki/Nine-volt_battery

    Vintage PP3-size 9-volt batteries Size comparison of batteries: D, C, AA, AAA, AAAA, 9-volt (PP3) The nine-volt battery, or 9-volt battery, is an electric battery that supplies a nominal voltage of 9 volts. Actual voltage measures 7.2 to 9.6 volts, depending on battery chemistry. Batteries of various sizes and capacities are manufactured; a ...

  3. 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

  4. AAAA battery - Wikipedia

    en.wikipedia.org/wiki/AAAA_battery

    The opening of a 9-volt battery to reveal six LR61 cells, which are similar to AAAA cells. This battery size is most often used in small devices such as laser pointers, LED penlights, powered computer styluses, glucose meters, and small headphone amplifiers, with Microsoft's Surface Pen the most prominent product taking AAAA batteries.

  5. Electric battery - Wikipedia

    en.wikipedia.org/wiki/Electric_battery

    From top to bottom: a large 4.5-volt 3R12 battery, a D Cell, a C cell, an AA cell, an AAA cell, an AAAA cell, an A23 battery, a 9-volt PP3 battery, and a pair of button cells (CR2032 and LR44) Batteries are classified into primary and secondary forms: Primary batteries are designed to be used until exhausted of energy then discarded. Their ...

  6. D battery - Wikipedia

    en.wikipedia.org/wiki/D_battery

    A D battery (D cell or IEC R20) ... AAAA and 9-Volt batteries. Dimensions and capacity. D batteries have a nominal diameter of 33.2 ± 1 millimeters (1.3 inches). The ...

  7. Rechargeable alkaline battery - Wikipedia

    en.wikipedia.org/wiki/Rechargeable_alkaline_battery

    A rechargeable alkaline battery, also known as alkaline rechargeable or rechargeable alkaline manganese (RAM), is a type of alkaline battery that is capable of recharging for repeated use. The formats include AAA , AA , C , D , and snap-on 9-volt batteries .