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The difference between alkaline and lithium cells

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 The Alkaline battery gets its name because it has an alkaline electrolyte of potassium hydroxide, instead of the acidic ammonium chloride or zinc chloride electrolyte of zinc-carbon batteries. Above, you see pictures of two types of cells that Panasonic makes. The ones on the top are AA type Alkaline cells. The ones on the bottom are AA type Zinc Carbon cells. Alkaline cell Zinc carbon cell Based on the tables above, the Zinc Carbon cell is lighter, but has a lower shelf life. They both are AA type and have a nominal voltage of 1.5V, but there is one point of comparison that is not listed in the table above. That is Capacity. The Capacity of a AA cell depends on the load connected to it. For example, if you discharge the AA cell at 1A, it might discharge for say 1 hour. Now what if you discharged it at 0.5A, will it discharge for 2 hours? The answer is no, the effective capacity at 0.5A will be slightly higher, so the cell will be able to supply for a little more than 2 hours. Thi...
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