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Alkaline battery - Alkaline batteries are a type of power cell dependent upon the reaction between zinc and manganese dioxide (Zn/MnO2). Compared with traditional carbon/zinc batteries, while both produce approximately 1.
LR44 Batteries - LR44 batteries are a standard size of alkaline batteries. LR44s are 'button' batteries, used in small devices such as laser pointers and watches.
Alkaline earth metal - The alkaline earth metals are the series of elements in Group 2 (IUPAC style) of the periodic table: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) and radium (Ra) (not always considered due to its radioactivity and very short half-life).
Rechargeable battery - Rechargeable batteries are batteries that can be restored to full charge by the application of electrical energy. They come in many different designs using different chemistry.
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