Quick answer: hearing aid batteries 675 are blue tab zinc-air button batteries used in selected high power hearing aids and some compatible hearing devices. In NZ, the safest way to buy is to match the battery size printed on your current packet or device guide, check the expiry date, choose a trusted brand, and buy from a supplier that clearly shows size 675 options.
If you are searching for hearing aid batteries 675, you are probably trying to avoid the wrong size, a flat device, or a last minute trip to the chemist. We have built this guide for NZ customers who use a 675 hearing aid battery and want a simpler way to compare size, fit, value, storage and safety.
For a fast starting point, browse our size 675 hearing aid batteries or compare trusted brands with our size 675 compare pack.
Why size 675 is the blue tab battery
Size 675 is one of the common disposable hearing aid battery sizes. It is usually identified by a blue tab or blue colour coding, which makes it easier to separate from size 10, 13 and 312 batteries. The number matters more than the colour, so we recommend checking the battery number on your old packet, your hearing aid battery door, or your device instructions before ordering.
Many people type 675 batteries for hearing aids, 675 hearing aid, hearing aid 675, size 675, or batteries 675 when they are looking for the same category. These searches can lead to similar products, but the safest choice is still the battery your device was designed to use.
What to check before you buy hearing aid batteries 675 in NZ
1. Compatibility comes first
A battery that looks close may not be the right battery. Size 675 batteries are not interchangeable with 312, 13, 10, or LR44 batteries. Match the battery code and shape, then check whether your device needs a standard 675 hearing aid battery or a specialist implant battery option.
2. Choose zinc-air batteries for zinc-air devices
Most disposable hearing aid batteries 675 are zinc-air. They use air as part of the chemistry, which is why the small tab should stay on until you are ready to use the battery. Once the tab is removed, the battery starts activating and cannot be switched back off by reattaching the tab.
3. Look at expiry dates and pack size
Bulk packs can be good value if you use batteries regularly, but they are only good value if you will use them before expiry. We recommend buying enough for convenience without storing more than you are likely to use.
4. Compare brands by real use, not just price
The best hearing aid batteries 675 are the ones that fit correctly, perform consistently in your device, and are fresh when you receive them. A lower price per battery can be useful, but reliability and expiry dates matter too.
Where to buy hearing aid batteries 675 near me
In New Zealand, you may find 675 batteries at hearing clinics, pharmacies, large retailers and online hearing accessory stores. Buying online is useful when you know your size and want to keep spares at home. Buying through a clinic can be useful if you are unsure about fit, battery drain, or whether your device has another fault.
At HearNZ, we keep the category focused so you can move quickly from size to brand. You can also browse all hearing aid batteries if you are buying for more than one device size.
How to use 675 batteries for hearing aids
- Wash and dry your hands before handling the battery.
- Remove the old battery and check the battery door for moisture or debris.
- Peel the tab from the new size 675 battery only when you are ready to use it.
- Let the battery breathe for a few minutes so air can activate the zinc-air cell.
- Insert the battery with the correct polarity, then close the door gently.
- Open the battery door overnight if your hearing aid uses one and your device instructions allow it.
If the hearing aid does not start, check the tab has been removed, the battery is facing the right way, and the battery door is fully closed. If the issue continues, try a fresh battery from a different card or ask your audiologist to check the device.
How to store batteries 675 safely
Keep unused batteries in their original packaging, away from heat, humidity and direct sunlight. Do not store loose batteries in a handbag, pocket, drawer, or pill organiser where they can touch metal items or be mistaken for tablets.
Button batteries can be dangerous if swallowed or inserted into the nose or ear. Store hearing aid batteries out of reach of children and pets. If you suspect a battery has been swallowed or inserted, seek urgent medical help immediately.
Value guide for NZ buyers
When comparing hearing aid batteries 675 in NZ, look beyond the headline price. Check how many batteries are in each card, how many cards are in the box, shipping cost, expiry date, brand, and whether the seller clearly states size 675 or P675. We recommend keeping one spare card in your bag or travel kit and the rest in a cool, dry place at home.
If you are testing brands, a mixed pack can be a sensible first step. Once you know which battery performs well in your device, you can buy that brand with more confidence.
FAQs
What is equivalent to a 675 hearing aid battery?
Common equivalents include PR44, P675, ZA675, AC675 and DA675. Always match the size number, tab colour and your hearing aid guide before buying.
How do I dispose of hearing aid batteries 675 safely?
Keep used batteries away from children and pets, tape or contain them if required by the collection site, and take them to a battery recycling point or hearing clinic that accepts small batteries.
Is a 675 battery the same as LR44?
No. A 675 hearing aid battery is usually a zinc-air battery made for hearing devices, while LR44 is an alkaline button battery used in many small household items. Do not swap them unless your device manual clearly allows it.
What is the difference between 675 and 312 batteries?
Size 675 batteries are larger and blue coded. Size 312 batteries are smaller and brown coded. They fit different hearing aid battery doors and are not interchangeable.
What colour is hearing aid battery size 675?
Hearing aid battery size 675 is commonly colour coded blue.
How long do 675 batteries last on a hearing aid?
Battery life depends on the hearing aid, daily wear time, volume, streaming, moisture and the battery brand. Size 675 usually suits higher power devices, but real use varies by person.
What size hearing aid batteries 675 do I need?
Choose size 675 only if your hearing aid, battery door, old packet or audiologist instructions specify 675, P675, PR44 or another accepted 675 equivalent.
How long do hearing aid batteries 675 usually last?
There is no single lifespan for every wearer. Many people track changes by writing the start date on the packet or calendar and replacing batteries when sound weakens or the device alerts them.
Are hearing aid batteries 675 zinc-air, and do they need activation time after removing the tab?
Most disposable 675 hearing aid batteries are zinc-air. Remove the tab only when ready to use, then let the battery breathe for a few minutes before closing the battery door.
How do I store hearing aid batteries 675 so they last longer?
Store them at room temperature in a cool, dry place, keep the tab on until use, keep them in the original packet, and avoid loose storage in pockets or bags.
Why do my hearing aid batteries 675 drain quickly?
Fast drain can be caused by high daily wear time, Bluetooth streaming, moisture, an old battery, a blocked battery contact, or a device fault. If it keeps happening, ask your audiologist or device supplier to check the hearing aid.
Next steps
- Shop size 675 hearing aid batteries
- View Zenipower size 675 batteries
- View Power One size 675 batteries
- View Rayovac size 675 batteries
- Read about 675 Implant Plus batteries in NZ
- Learn how to choose the right battery size
References
- Energizer New Zealand, Hearing Aid Batteries 675
- Audika NZ, hearing aid battery comparison chart
- Healthify NZ, hearing aid care and battery storage tips
- Product Safety New Zealand, button battery safety
- Consumer NZ, how to recycle used batteries
- Natural Hearing NZ, zinc-air hearing aid battery activation
