Rayovac Hearing aid battery 675AC blister pack of 6 - Reliable power for your hearing aid

The Rayovac 675AC hearing aid battery (size 675, colour code blue) in a practical 6-pack blister is the absolute powerhouse among hearing aid batteries. As one of the world's leading manufacturers in audiology, Rayovac has developed this cell especially for super-power and ultra-power hearing systems that require a maximum of constant energy to reliably compensate for severe hearing loss.

Thanks to innovative zinc-air technology and the advanced "Active Core Plus" architecture, size 675 offers by far the highest capacity of all standard hearing aid batteries. It not only guarantees superior runtime but also delivers the necessary performance reserves for intensive continuous use of demanding digital functions and extensive Bluetooth streaming.

Highlights at a glance

• Colour code blue (Size 675): The globally standardised colour coding makes re-purchasing child's play – if your device requires a "blue" battery or if your old blister says "675", you're in the right place.
• Maximum capacity: With around 630 mAh this battery provides the greatest energy density and is designed for devices with very high energy requirements (super-power class).
• Zinc-air technology: The battery only activates when the blue freshness seal is removed and the cell reacts with oxygen from the ambient air.
• Long shelf life: Unopened and with the sticker intact, you can store these premium batteries for up to 4 years without noticeable loss of performance.
• Safe blister design: The practical rotating dial-pack makes it easy to remove individual cells while the rest remain safely stored in the blister.
• Leak-proof & reliable: A robust stainless steel case protects the battery from corrosion and keeps your hearing aid's expensive electronics safe from damage.

Areas of application

Size 675 (blue) is the specialised power source for high-performance hearing aids:

• Super-Power & Ultra-Power BTE: The standard choice for very powerful behind-the-ear devices used for severe to near-profound hearing loss.
• Intensive streaming: Provides the necessary endurance for users who pair their hearing aids intensely all day long with smartphones, TV or external microphones.
• Bone conduction hearing systems: Often used in special bone-anchored hearing aids (Baha) or hearing spectacles that require a high current supply.

Assembly & safety instructions

• Activation time (Very important!): Remove the blue sticker and allow the battery to rest in the air for 1 to 2 minutes before inserting into the hearing aid. Only this way will enough oxygen enter the cell to build up the 1.45 V operating voltage.
• Keep freshness seal intact: Remove the sticker only just before use. Once peeled off, chemical discharge will inevitably begin – even if the seal is immediately reapplied.
• Optimal storage: Store the batteries at room temperature (approx. 10°C to 25°C) in a dry place. Do not use the refrigerator, as condensation can form there and make the battery unusable.
• Environmentally friendly disposal: Empty zinc-air batteries must not be disposed of in household waste. Please dispose of them properly in collection boxes at your audiologist, in retail, or at your recycling centre.

Features

FAQs about the Rayovac 675AC blister

How long does a size 675 battery last in my hearing aid?

This depends greatly on the hearing aid and usage. As size 675 has the highest capacity of all standard hearing aid batteries, it usually lasts very long – on average between 9 and 20 days. However, as it is often used in super-power devices with extremely high current consumption, the runtime may also be shorter with continuous Bluetooth streaming.

Does this battery fit Phonak, Signia or Oticon devices?

Yes, without restriction. The sizes of hearing aid batteries are standardised worldwide. Irrespective of the manufacturer of your hearing system – if your device requires a 675 battery or the battery compartment has a blue marking, this Rayovac battery fits 100%.

Can I use this 675 battery for my cochlear implant (CI)?