Energizer Size 312 Hearing Aid Batteries utilize advanced zinc-air technology, activated by oxygen to deliver consistent voltage and superior sound clarity throughout their operational lifespan. These batteries rank among Energizer's longest-lasting formulations, providing up to 5 additional hours of wireless streaming compared to leading competitors—maximizing your hearing aid's performance between replacements. The extended brown tabs facilitate effortless handling, removal, and insertion into compact battery compartments, reducing frustration during routine changes. PowerSeal technology provides robust leak protection, preventing corrosive damage to sensitive hearing device components and eliminating premature low-battery warnings. Mercury-free construction aligns with environmental safety standards while maintaining peak performance. At 1.45V, these batteries deliver the precise voltage specification required for optimal digital hearing aid functionality. This 8-count pack ensures reliable power availability for uninterrupted auditory support.