Hearing Aid Batteries — Size 13 (Zinc-Air, Box of 60)

These size 13 zinc-air hearing aid batteries (orange colour code) power most behind-the-ear (BTE) hearing aids. The box contains 60 cells in ten sealed blister cards of six. Zinc-air cells activate on contact with air: peel off the coloured tab and wait about 60 seconds before inserting for full, stable voltage. They deliver consistent power to the end and have a long sealed shelf life; store in a cool, dry place and keep the tab on until use. Mercury-free and IEC-standard sized, so they fit any size-13 hearing aid regardless of brand. Size 13 is orange; check your hearing aid's battery size (10 yellow, 312 brown, 13 orange, 675 blue) before ordering.