Batteries

Why Buy Rayovac ProLine from your Audiologist?

• No battery lasts longer than Rayovac ProLine Advanced.
• Rayovac ProLine batteries are guaranteed to work and have the industry-leading 4 year fresh seal.
• We place orders directly with Rayovac, regularly, so these batteries are always fresher than those you can buy at the major retail stores.
• Most hearing aids are built using Rayovac battery specifications- makes sense to stay with what works.
• Other batteries may be cheaper, but if they do not last as long as Rayovac ProLine, then were is the savings? One question often asked is "How long does the battery last?" Depending on the size of the battery, the circuit of the hearing aid and the severity of the hearing loss, they last anywhere from 3-14 days based on a 12-16 hour per day use cycle. Generally, the smaller the battery size, the shorter the battery life. The sizes of hearing aid batteries are listed below along with their standard number and color codes.
Hearing Aid Batteries

Color Code
All batteries are toxic and dangerous if swallowed. Keep all batteries (and hearing aids) away from children and pets. If anyone swallows a battery it is a medical emergency and the individual needs to see a physician immediately. Today's hearing aid batteries are "zinc-air." Because the batteries are air-activated, a factory-sealed sticker keeps them "inactive" until you remove the sticker. Once the sticker is removed from the back of the battery, oxygen in the air contacts the zinc within the battery, and the battery is "turned-on". Since many of today's automatic hearing aids do not have "off" switches, removing the battery from the hearing aid circuit, by opening the battery door, when not in use, assures the device is turned off. Zinc-air batteries have a "shelf life" of up to three years when stored in a cool, dry environment. Storing zinc-air hearing aids in the refrigerator has no beneficial effect on their shelf life. In fact -- quite the opposite may happen. The cold air may actually form little water particles under the sticker. Water is made of oxygen and hydrogen. If the water vapor creeps under the sticker, oxygen may contact the zinc and the battery could be totally discharged by the time you peel off the sticker! Therefore, the best place to store batteries is in a cool dry place, like the back of your sock drawer, not the fridge!