---
product_id: 21781503
title: "Rayovac Extra Advanced Mercury Free Hearing Aid Batteries Size 10 + Keychain (40 Batteries)"
brand: "extra advanced"
price: "€ 37.57"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.gr/products/21781503-rayovac-extra-advanced-mercury-free-hearing-aid-batteries-size-10
store_origin: GR
region: Greece
---

# Zinc Air Design Mercury Free 40 Batteries Rayovac Extra Advanced Mercury Free Hearing Aid Batteries Size 10 + Keychain (40 Batteries)

**Brand:** extra advanced
**Price:** € 37.57
**Availability:** ✅ In Stock

## Summary

> 🔊 Power Up Your Hearing Experience!

## Quick Answers

- **What is this?** Rayovac Extra Advanced Mercury Free Hearing Aid Batteries Size 10 + Keychain (40 Batteries) by extra advanced
- **How much does it cost?** € 37.57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/21781503-rayovac-extra-advanced-mercury-free-hearing-aid-batteries-size-10)

## Best For

- extra advanced enthusiasts

## Why This Product

- Trusted extra advanced brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Power:** Experience consistent energy that lasts longer.
- • **Convenient Keychain:** Always have a battery on hand!
- • **Eco-Friendly Choice:** Go green with mercury-free technology.
- • **Precision Engineering:** Zinc air cell design for optimal performance.
- • **Quality You Can Trust:** Manufactured with world-class techniques.

## Overview

Rayovac Extra Advanced Mercury Free Hearing Aid Batteries Size 10 come in a pack of 40, designed with a zinc air cell for maximum power and performance. These eco-friendly batteries ensure reliable energy for your hearing devices while being easy to carry with a convenient keychain.

## Description

Rayovac Extra Advanced Mercury Free Hearing Aid Batteries Size 10 + Keychain (40 Batteries)

## Features

- Rayovac Mercury Free offers consistent power and performance with an environmental focus.
- Rayovac provides the optimal energy solution for almost every device. With world-class manufacturing techniques and continual quality testing and improvement, you'll be assured of the highest product performance in each and every battery.
- Rayovac's zinc air cell design provides precision air flow, maximizing power and maintaining performance.

## Images

![Rayovac Extra Advanced Mercury Free Hearing Aid Batteries Size 10 + Keychain (40 Batteries) - Image 1](https://m.media-amazon.com/images/I/617T8u6CPfL.jpg)
![Rayovac Extra Advanced Mercury Free Hearing Aid Batteries Size 10 + Keychain (40 Batteries) - Image 2](https://m.media-amazon.com/images/I/31Uvx4SFsjL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Five Stars
  

*by K***R on Reviewed in the United States on April 5, 2018*

great for the price

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Arrived quickly
  

*by C***K on Reviewed in the United States on June 22, 2017*

I only use Rayovac at the recommendation of my audiologist. He advised that they last longer than other batteries. I have not used other batteries so have nothing to which I can compare these batteries other than Rayovacs that I have bought from other Amazon venders. These do not seem to last as long as batteries that I bought from a UK vender.

### ⭐ 1.0 out of 5 stars







  
  
    90% of them are dead
  

*by M***A on Reviewed in the United States on January 31, 2014*

I have been wearing hearing aids for about 10 years and loves the rayovac batteries. I started running low and instead of buying so many I decided to try this smaller 4 pack. First I noticed some would die the next day, I needed new hearing aids and blamed them. Then half the batteries wouldn't work so I start taking brand new batteries out of the package and measuring the voltage, should be 1.4 volts and the first 6 I tested all tested around .2 to .3 volts Some tested zero and were completely dead.. They haven't expired so I have no idea whats wrong with them but they are pure JUNK..I have bought the 6 pack form a different seller and the Rayovac Extra would last 8 to 9 days consistently.

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**Shop now:** [https://www.desertcart.gr/products/21781503-rayovac-extra-advanced-mercury-free-hearing-aid-batteries-size-10](https://www.desertcart.gr/products/21781503-rayovac-extra-advanced-mercury-free-hearing-aid-batteries-size-10)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-04*