If you are looking for 312 batteries for sale in New Zealand, the key step is making sure your device uses size 312, which is the brown colour code. We recommend checking your current battery tab, your hearing aid manual, or the battery door markings before you buy. For many people, the simplest place to start is the size 312 collection or a known match such as Power One Sound Perform Size 312.
Who this guide is for
This guide is for people in NZ who already know they need size 312 batteries, or who want a quick way to confirm compatibility before ordering. It is especially useful for routine users, family members helping with reordering, and anyone comparing packs, brands, and value.
What 312 batteries are
Size 312 batteries are small zinc-air hearing aid batteries commonly used in many behind-the-ear and receiver-in-canal hearing aids. The easiest way to recognise them is the brown tab. That brown code matters more than the brand name, because compatible devices are matched by battery size first.
If you are still narrowing it down, our hearing aid batteries NZ guide can help you compare common sizes and buying options.
How to confirm your hearing aid uses size 312
Check the colour code
Size 312 uses a brown tab. If your current pack or battery wheel is brown, that is usually the fastest confirmation.
Check the size marking
Some devices, manuals, or battery packaging will show 312 or PR41. If you see either of those, you are generally looking at the same battery size.
Check your current product page or past order
If you have ordered before, compare the exact item name and pack size. This helps avoid mixing up 312 with 10, 13, or 675.
Why people search for 312 batteries for sale
Most shoppers are trying to solve one of three problems: they need a direct replacement, they want a better price on a repeat purchase, or they want a trusted pack that is easy to reorder. In each case, it helps to focus on confirmed size first, then compare brand, pack quantity, and delivery convenience.
How sizes and brands work
Different hearing aid battery brands can still be suitable for the same device when the size matches. In practice, size 312 is the specification that matters most. Brand choice then comes down to preferences such as pack format, price, availability, and how often you want to reorder.
For side by side browsing, you can explore the wider hearing aid batteries collection or compare another common option such as Rayovac Size 312.
Buying tips for NZ shoppers
Buy the confirmed size, not a similar size
Battery sizes are not interchangeable. Even if the packaging looks similar, a different size may not fit or work correctly.
Think about pack quantity
If you use batteries every week, buying a larger quantity can make repeat ordering easier. If your use is less frequent, smaller packs may suit you better.
Keep a spare pack on hand
Many users find it easier to keep one unopened pack ready, especially for travel, work, or weekends.
Simple battery handling tips
Let the battery activate
312 batteries are zinc-air, so they start activating after the tab is removed. Waiting a short time before inserting the battery can help give more stable performance.
Store them in a dry place
We recommend normal room-temperature storage away from heat, moisture, and humid bathrooms.
Do not mix old and new batteries
Using matched fresh batteries and replacing them carefully helps reduce confusion when a hearing aid stops working.
When to ask for extra help
If your hearing aid still does not work after fitting a fresh 312 battery, the issue may be moisture, contacts, wax buildup, or the wrong size being used. In that case, check your manual or ask your hearing care provider before ordering more.
FAQs
How do I know if I need size 312 batteries?
Check the brown colour code on your current battery pack or look for 312 or PR41 on your device manual, packaging, or past order.
Are all 312 batteries the same size?
Yes. If the battery is labelled size 312, it is the same standard size across brands, although pack style and performance details can vary.
Can I use a different battery size if 312 is out of stock?
No. Hearing aid battery sizes are not interchangeable, so you should only use the size specified for your device.
How should I store spare 312 batteries?
Store spare 312 batteries at normal room temperature in a dry place, and keep the tab on until you are ready to use each battery.
Next steps
- Shop size 312 batteries
- Read our guide to batteries 312 for hearing aids
- Compare lower-cost 312 battery options
- Learn how to choose the right battery size
