- RAYOVAC Extra, Size 312 Hearing Aid Batteries
Box of 80
- RAYOVAC®, the #1 Manufacturer of Hearing Aid Batteries, now brings you Clear Sound Technology. Raising the benchmark of product innovation and providing consistent, quality performance through the whole life of the battery. Size 312 batteries offer the perfect compromise between compact size and battery life, with an emphasis on smaller size. They are sold in boxes of 80.