About Battery Disposal
More
Button/Coin Cell Batteries
![](/prerenderstable/mvPRE/contents/gfx/imagecache/760/7604k51p1-d01a-digital@halfx_636922392349439516.png?ver=imagenotfound)
Alkaline, Silver Oxide, Zinc Air
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.
Silver oxide batteries last longer than alkaline batteries.