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Alkaline battery

Alkaline battery is the most common single-use (primary) battery, got its name so because it uses a paste of KOH as the electrolyte. Alkaline earth metals : Elements of Group 2, the second column of the periodic table: Be, Mg, Ca, Sr, Ba, and Ra. See Nickel-cadmium (nicad) battery, Nickel-metal-hydride (NiMH) battery, Nickel-cadium (nicad) and heavy metals

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