Rayovac® Size 312 Hearing Aid Batteries

No hearing aid battery lasts longer (Based on ANSI/EIC Performance tests for size 312). Rewards Program: Join today to see our latest details! www.Rayovac.com/Rewards. Long Lasting Formula: Our batteries are formulated to provide quality performance over the life of the battery and delivers more power (vs. previous Rayovac design) when you need it. Optimal Battery Tab: Longer, wider tabs make it easier to handle batteries. (vs. previous Rayovac design). Replaces: All size 312 Zinc air batteries....