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  2. Lead–acid battery - Wikipedia

    en.wikipedia.org/wiki/Lead–acid_battery

    IUoU battery charging is a three-stage charging procedure for lead-acid batteries. A lead-acid battery's nominal voltage is 2.2 V for each cell. For a single cell, the voltage can range from 1.8 V loaded at full discharge, to 2.10 V in an open circuit at full charge.

  3. Electric battery - Wikipedia

    en.wikipedia.org/wiki/Electric_battery

    The main benefit of the lead–acid battery is its low cost; its main drawbacks are large size and weight for a given capacity and voltage. Lead–acid batteries should never be discharged to below 20% of their capacity, [67] because internal resistance will cause heat and damage when they are recharged. Deep-cycle lead–acid systems often use ...

  4. Rechargeable battery - Wikipedia

    en.wikipedia.org/wiki/Rechargeable_battery

    A rechargeable battery, storage battery, or secondary cell (formally a type of energy accumulator), is a type of electrical battery which can be charged, discharged into a load, and recharged many times, as opposed to a disposable or primary battery, which is supplied fully charged and discarded after use.

  5. Comparison of commercial battery types - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_commercial...

    This is a list of commercially-available battery types summarizing some of their characteristics for ready comparison. ... # 100% depth of discharge (DoD) cycles Lead ...

  6. Toxic heavy metal - Wikipedia

    en.wikipedia.org/wiki/Toxic_heavy_metal

    A toxic heavy metal is a common but misleading term for a metal-like element noted for its potential toxicity. [4] Not all heavy metals are toxic and some toxic metals are not heavy. [ 5 ] Elements often discussed as toxic include cadmium , mercury and lead , [ 6 ] all of which appear in the World Health Organization 's list of 10 chemicals of ...

  7. Battery recycling - Wikipedia

    en.wikipedia.org/wiki/Battery_recycling

    Battery recycling is a recycling activity that aims to reduce the number of batteries being disposed as municipal solid waste.Batteries contain a number of heavy metals and toxic chemicals and disposing of them by the same process as regular household waste has raised concerns over soil contamination and water pollution. [1]

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  9. Battery Directive - Wikipedia

    en.wikipedia.org/wiki/Battery_Directive

    1.C. more than 0.4% lead by weight; Alkaline manganese batteries placed on the market after 18 September 1992 containing more than 0.025% of mercury by weight; Batteries on the market after 1 January 1999 with more than 0.0005% mercury by weight [6] Since battery recycling rates then were about 5% the directive sought to improve these rates.