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Why rechargeable batteries have only 1.2V voltage? [Random Knowledge #13]
posted February 24 2013 19:42.46 by Giorgos Lazaridis




Rechargeable batteries have less potential than normal batteries because they have different chemistry. Nickel and Cadmium or Nickel and Hydrogen batteries can have a potential of 1.2V. Alkaline and Zinc Carbon can store both up to 1.5 (maybe 1.6v if fresh). The fact that batteries with different chemistry have the same potential is just a coincident. Lithium batteries can have a potential of 3V, while Lithium-Ion rechargeable batteries may store up to 3.6V, that's 0.6 volts higher than the normal Lithium batteries.


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  • At 25 February 2013, 3:10:03 user cheerio wrote:   [reply @ cheerio]
    • I once read you can recharge alkaline batteries as well using a pulsed charge method. It is dangerous as the battery can explode. But maybe you can investigate this technology.












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