The Rayovac Hearing Aid Batteries in Size 13 are crystal clear and come in a pack of 10. These batteries are expired as of 2019, but they are still suitable for use. With a voltage of 1.45V and a zinc-air chemical composition, these coin cell/button batteries provide reliable power for hearing aids. The Rayovac brand is known for its quality and durability in the medical and mobility industry, making these batteries a trusted choice for those in need of daily living aids. The Packs are intact and should still have a charge. CHEAP!!
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