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  2. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    There were two ⌀3.2 mm negative pins spaced 9.5 mm apart and two ⌀4.0 mm positive pins spaced 14.3 mm apart. Negative and positive pins were spaced 18.1 mm apart. It was used in some early transistor radio amplifiers with a Class B output stage, allowing the loud speaker to be connected between the amplifier output and the battery center tap.

  3. Automotive battery - Wikipedia

    en.wikipedia.org/wiki/Automotive_battery

    A typical 12 V, 40 Ah lead-acid car battery. An automotive battery, or car battery, is a rechargeable battery that is used to start a motor vehicle. Its main purpose is to provide an electric current to the electric-powered starting motor, which in turn starts the chemically-powered internal combustion engine that actually propels the vehicle.

  4. Battery nomenclature - Wikipedia

    en.wikipedia.org/wiki/Battery_nomenclature

    N 1 A 1 A 2 A 3 N 2 /N 3 /N 4-N 5. where N 1 denotes number of series connected cells and N 5 denotes number of parallel connected cells (only when the number is greater than 1); these numbers only apply to batteries. A 1 indicates the basis of negative electrode phase, where I is for lithium ion and L is for lithium metal or alloy.

  5. Lead–acid battery - Wikipedia

    en.wikipedia.org/wiki/Lead–acid_battery

    The sum of the molecular masses of the reactants is 642.6 g/mole, so theoretically a cell can produce two faradays of charge (192,971 coulombs) from 642.6 g of reactants, or 83.4 ampere-hours per kilogram for a 2-volt cell (or 13.9 ampere-hours per kilogram for a 12-volt battery).

  6. 12-volt battery - Wikipedia

    en.wikipedia.org/wiki/12-volt_battery

    12-volt battery may refer to: Automotive battery; Lantern battery; A23 battery, for RF transmitters This page was last edited on 23 August 2019, at 15:27 (UTC) ...

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  8. Electric vehicle battery - Wikipedia

    en.wikipedia.org/wiki/Electric_vehicle_battery

    Average battery costs have fallen by 90% since 2010 due to advances in battery chemistry and manufacturing. [8]: 3 Batteries represent a substantial portion of an EV's overall cost, often accounting for up to 30-40% of the vehicle's total price. However, the cost of EV batteries has been decreasing steadily over the years due to advancements in ...

  9. Is It Safe to Use Expired Vitamins? The Truth About Vitamin ...

    www.aol.com/vitamins-expire-nutritionists-weigh...

    Also, capsules that contain liquid or oil may deteriorate more quickly than those that don’t. Is it safe to take expired vitamins? Taking expired vitamins is generally considered safe—but ...

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