Product Overview

This mercury-free zinc-air Battery activates upon exposure to air, producing a constant voltage that ensures consistent audio quality.   Its leak-proof structure and optimized chemistry extend battery life while protecting delicate hearing aid circuits.

Key Features

Reliable Zinc-Air Chemistry – Maintains a steady 1.45V output for stable hearing performance.

Universal A312 / PR41 Size – Fits a wide range of hearing aids from leading brands.

Mercury-Free – Environmentally friendly and compliant with RoHS and REACH standards.

High energy density – Longer operating time with fewer battery changes.

Leak-Resistant Seal – Protects hearing aid components from moisture damage.

Easy-to-Use Tabs – Simple replacement, especially for elderly users.

Technical Specifications

Model Name：A312 / PR41 Hearing aid battery

Chemistry：Zinc-Air (Zn-Air)

Nominal Voltage：1.45V

Capacity：High energy density for extended daily use

Shelf Life：Long shelf life when unopened

Packaging：Blister card packs (6 cells per pack or customized)

Compliance：RoHS, REACH, Mercury-Free

Applications

The A312 hearing aid battery is ideal for:

Behind-the-ear (BTE) hearing aids

In-the-ear (ITE) hearing aids

Receiver-in-canal (RIC) hearing aids

Other small electronic assistive devices

Its balance of compact size and high capacity makes it one of the most commonly used batteries for hearing aid users worldwide.

Advantages of A312 / PR41 Zinc-Air Batteries

Consistent Power Delivery – Prevents volume drops or sound distortion.

Lightweight & Comfortable – No extra weight added to small hearing aid units.

Optimized for Low Drain – Ideal for steady, low-power hearing aid operation.

Eco-Conscious Design – No mercury or harmful heavy metals.

Reliable Across Climates – Works in a wide range of humidity and temperature conditions.

How to Use A312 Hearing Aid Batteries Properly

Confirm Size – Ensure your device requires A312 / PR41 before purchasing.

Remove Tab – This activates the zinc-air chemistry by letting air enter the battery.

Allow Activation Time – Wait 1–2 minutes after removing the tab for full power.

Insert Correctly – Match the polarity as indicated in your device.

Store Wisely – Keep unused batteries in a cool, dry place away from metal objects.

Safety & Storage Guidelines

Keep batteries away from children and pets.

Do not swallow or expose to fire.

Avoid mixing used and new batteries in the same device.

Dispose of used batteries according to local recycling regulations.

FAQ – Common Questions

Q1: Is A312 the same as PR41?

A: Yes, they are identical in size;   A312 is the consumer code, PR41 is the IEC standard designation.

Q2: How long does an A312 battery last?

A: Depending on hearing aid power consumption, typically 3–10 days of continuous use.

Q3: Are A312 batteries rechargeable?

A: Standard zinc-air A312 batteries are not rechargeable.   Some hearing aids have dedicated rechargeable versions.

Q4: Why do A312 batteries have tabs?

A: The tab keeps the battery inactive until air enters, which starts the chemical reaction.

Q5: Can I store them for a long time?

A: Yes, if kept sealed in the original packaging in a cool, dry environment, they maintain performance for years.