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Button/Coin Cell Batteries
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Lithium with Flat Top
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Lithium with Solder Tab
Sized to fit into devices with small battery compartments, these batteries are often used with watches, sensors, and calculators. When choosing a battery, use the capacity, measured in milliampere-hours, to compare among similar sizes. The higher the mA-hr. rating, the longer the battery should last.
Lithium batteries are the lightest and longest-lasting button/coin cell batteries.