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Zinc-Air Hearing Aid Batteries: An Analysis of Functional Performance
James Thomas1, Barry Bardsley2, Jane Wild3
1Adult Audiology & Primary Care Service, Swansea Bay University Health Board, Swansea SA2 8QA, UK.
Audiology Research
|August 28, 2024
Summary
This study evaluated hearing aid battery performance, finding all brands underperformed but met standards. One brand was statistically identified as the best performer for hearing aid users.
Area of Science:
- Audiology
- Materials Science
- Consumer Product Testing
Background:
- Hearing aid functionality depends on disposable battery quality and longevity.
- Limited research exists on hearing aid battery consumption patterns.
Purpose of the Study:
- To evaluate the performance of three disposable hearing aid battery brands available in Wales.
- To identify the best performing hearing aid battery brand through statistical analysis.
Main Methods:
- A grey literature review of battery standards was conducted.
- Laboratory testing supplemented real-world battery usage data.
- Performance parameters quantified service life for PR44 and PR48 batteries from each manufacturer.
Main Results:
- A significant gap in hearing aid battery consumption research was identified.
- All tested battery brands underperformed relative to their stated specifications.
- Despite underperformance, all batteries met International Electrotechnical Commission (IEC) standards.
Conclusions:
- Hearing aid battery consumption test conditions require revision to align with new technological features and real-world usage.
- Statistical analysis enabled the identification of the top-performing hearing aid battery brand.
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