Alkaline Batteries
Alkaline batteries are a smart choice for consumers because they last for a long period of time, perform well at high and low temperatures and have a long storage life. Alkaline batteries can be stored at room temperature 
for two years and retain 90 percent of their original capacities.
According to the U.S. EPA, potassium hydroxide, a strong alkali (a base), is contained within the cells of alkaline batteries. The potassium hydroxide can leak out of the battery cell if they are damaged or mishandled, causing severe chemical burns if the substance comes into contact with your skin or eyes.
- Standard Alkaline – typically used in low to moderate-drain devices like scanners and remote controls
- Premium Alkaline – typically used in high drain devices such as digital cameras and CD players
Mercury use in batteries has been reduced drastically. Newer alkaline batteries contain about one-tenth the amount of mercury previously contained in the typical alkaline battery. Some alkaline batteries have zero-added mercury, and several mercury-free, heavy-duty, carbon-zinc (or zinc-carbon) batteries are on the market.
Because of mercury reduction, some landfill bans of alkaline batteries and recycling programs taking them have ceased. When disposing of household alkaline batteries, it is best to check with your local recycling or Household Hazardous Waste coordinators concerning the specifics of what is and is not accepted.
