Hear Clear Size 675 Hearing Aid Battery | 530 mAh| 4-year shelf life | High capacity | High power | Anti-leakage design w/ Child-Resistant Packaging that meets the specifications mandated by law in the regulation titled 16 CFR Part 1263. HearClear hearing aid batteries are backed with over 23 years of research and development, utilizing a unique patented technology in their design. HearClear batteries are 1.45V, suitable for hearing aids using zinc air batteries and are available in sizes 10, 13, 312, 675, and the 675P cochlear battery for cochlear implant devices. These batteries are made in the USA with US and global parts. HearClear batteries are well known for their high quality performance and durability as well as the following highlights: Long Shelf Life 1.45 Voltage High Power / High Capacity Made in the USA with US & Global Parts