Lithium battery facts for kids
A lithium battery is a long-life, lightweight, high-power battery used in watches. It is normally in the shape of a coin. As the name suggests, the battery has lithium in it. The lithium is oxidized, providing the power for the battery.
They are not rechargeable; once they are dead they should be thrown out.
Lithium batteries come in several sizes. The size is indicated by a code. CR1216 is a small battery, while CR2012 is medium-sized and CR2450 is large. They are normally more expensive than other batteries.
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Lithium battery Facts for Kids. Kiddle Encyclopedia.