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  2. Battery regenerator - Wikipedia

    en.wikipedia.org/wiki/Battery_regenerator

    As the charging process continues, such a battery will reach the charger's preset cut-off more rapidly, long before it has had time to accept a complete charge. In this case the battery charger indicates the charge cycle is complete, but the battery actually holds very little energy. To the user, it appears that the battery is dying. [2]

  3. Batteries in space - Wikipedia

    en.wikipedia.org/wiki/Batteries_in_space

    Vehicles such as the Apollo spacecraft and the Space Shuttle required more power than could be supplied by batteries or solar panels, and so relied on hydrogen fuel cells to provide several kilowatts of power for hundreds of hours. [2] A reserve battery is a primary battery that keeps its chemical reactants separated until needed. This improves ...

  4. Lithium–sulfur battery - Wikipedia

    en.wikipedia.org/wiki/Lithium–sulfur_battery

    The lithium–sulfur battery (Li–S battery) is a type of rechargeable battery. It is notable for its high specific energy . [ 2 ] The low atomic weight of lithium and moderate atomic weight of sulfur means that Li–S batteries are relatively light (about the density of water).

  5. Molten-salt battery - Wikipedia

    en.wikipedia.org/wiki/Molten-salt_battery

    A lower-temperature [11] variant of molten-salt batteries was the development of the ZEBRA (originally, "Zeolite Battery Research Africa"; later, the "Zero Emissions Batteries Research Activity") battery in 1985, originally developed for electric vehicle applications. [12] [13] The battery uses NaNiCl 2 with Na +-beta-alumina ceramic ...

  6. Atomic battery - Wikipedia

    en.wikipedia.org/wiki/Atomic_battery

    A thermionic converter consists of a hot electrode, which thermionically emits electrons over a space-charge barrier to a cooler electrode, producing a useful power output. Caesium vapor is used to optimize the electrode work functions and provide an ion supply (by surface ionization) to neutralize the electron space charge. [6]

  7. Deep-cycle battery - Wikipedia

    en.wikipedia.org/wiki/Deep-cycle_battery

    A deep-cycle battery powering a traffic signal. A deep-cycle battery is a battery designed to be regularly deeply discharged using most of its capacity. The term is traditionally mainly used for lead–acid batteries in the same form factor as automotive batteries; and contrasted with starter or cranking automotive batteries designed to deliver only a small part of their capacity in a short ...

  8. Mercury battery - Wikipedia

    en.wikipedia.org/wiki/Mercury_battery

    The 1991 European Commission directive 91/157, when adopted by member states, prohibited the marketing of certain types of batteries containing more than 25 milligrams of mercury, or, in the case of alkaline batteries, more than 0.025% by weight of mercury. In 1998 the ban was extended to cells containing more than 0.005% by weight of mercury. [2]

  9. What is the red fire retardant dropped by planes to fight LA ...

    www.aol.com/red-fire-retardant-dropped-planes...

    The vibrant red fire retardant is known as Phos-Chek and has been used by firefighters battling wildland blazes for over 50 years, according to its manufacturer, Perimeter Solutions.

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