Rayovac Size 13 Hearing Aid Batteries are designed for long-lasting performance, providing the power your hearing aids need. These mercury-free batteries are engineered with an advanced formula to ensure consistent and reliable performance for power-hungry hearing aid devices. With easy-to-handle, longer, and wider tabs, replacing these batteries is simple and convenient. Made in the USA with US and global parts, Rayovac delivers quality and affordability, making it the smart choice for your hearing aid needs.