Rayovac Mercury Free Proline Advanced Size 312 Hearing Aid Batteries, Total of 48 Batteries

The Longest Lasting Hearing Aid Batteries in the World.
Rayovac Proline Batteries only available from Hearing Aid Professionals.
Direct from Rayovac to you from the Hearing Aid Battery Club.
Made within the last 3 months with a long lasting 4-year shelf life, guaranteed. NEW 48-pack of Rayovac Mercury-Free Proline Advanced Size 312 Hearing Aid Batteries direct from Rayovac within the last 30 days. These batteries are guaranteed by Rayovac and the Hearing Aid Battery Club to be the longest lasting hearing aid batteries in the world today. Keep all hearing all batteries in a cool, dry place that's free of moisture and extreme temperatures. More »