Rayovac Acoustic Special Hearing Aid Batteries - Size 675 - Blue
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Product Information
Full details
Rayovac Acoustic Special Size 675 hearing aid batteries are engineered for individuals who require consistent, long-lasting power for their high-drain hearing devices. Featuring a distinctive blue tab for easy identification, these zinc-air batteries offer reliable performance for daily use. Users should note that as zinc-air batteries, they require a brief activation period once the protective tab is removed before being inserted into the hearing aid.
All features
| Colour | Blue |
|---|---|
| Brand | Rayovac |
Extended Product Information
FAQs
What does the blue tab mean?
The blue tab is the industry-standard color code for size 675 hearing aid batteries, helping you easily identify the correct size for your device.
Can I put the tab back on to save battery life?
No, once the protective tab is removed, the battery begins to oxidize and drain regardless of whether it is inside the device or sitting out.
How long can I store these batteries?
When kept in their original, sealed packaging in a cool, dry environment, these batteries have a long shelf life, but you should check the expiration date printed on the pack.
Are these batteries rechargeable?
No, these are single-use zinc-air batteries and should be disposed of properly once depleted.
What is the voltage of these batteries?
These batteries provide a nominal voltage of 1.4V.
Troubleshooting
Hearing aid shows low power immediately after installation
Ensure you waited at least one minute after removing the tab before closing the battery door to allow the zinc-air chemistry to activate.
Battery life seems shorter than expected
Check your hearing aid for any debris or earwax buildup that may be forcing the device to work harder, or check for high-drain features like Bluetooth streaming that may deplete power faster.
Pros and Cons
Pros
- Reliable power delivery for high-drain devices
- Easy-to-recognize blue tab coding
- Mercury-free construction
- Stable performance throughout the battery life cycle
Cons
- Single-use only (non-rechargeable)
- Activation time required after tab removal
- Battery drains once the tab is removed regardless of use
Setup, Compatibility & Care
To install, remove the blue tab from the back of the battery and wait 60 seconds before inserting it into the hearing aid battery door with the flat (positive) side facing up. Proper care is essential for longevity: store batteries in a cool, dry place at room temperature. Never store them in the refrigerator, as condensation can damage the battery life. Keep the batteries in their original packaging until you are ready to use them to prevent accidental discharge. If your hearing aid will not be used for an extended period, it is recommended to open the battery compartment to prevent potential corrosion.