Super long lasting Power One zinc-air hearing batteries in a rust proof stainless steel case. Top of the line German made hearing aid batteries. These batteries are 100% tested, thus every cell is tested for its electrical and mechanical characteristics in compliance with its specification. The Power One Zinc-air hearing aid batteries are also guaranteed for longer shelf life and are proven under extreme climatic conditions in long term testing. Power One Hearing Aid Batteries are available in size 10, size 312, size 13, size 675 and Cochlear Implant Batteries. All batteries are on sale, thus enjoy our discount hearing aid batteries! Order today and get FREE Shipping for US and Canada orders. POWER ONE SIZE 675 HEARING AID BATTERIES, 10 Pack--60 BATTERIES POWERONE1310PKRegular price: $33.90Sale price: $29.90 Home