--- product_id: 540339189 title: "Extra Advanced Mercury Free Hearing Aid Batteries Size 312 (Pack of 80)" brand: "rayovac" price: "AR$138040" currency: ARS in_stock: true reviews_count: 5 category: "Rayovac" url: https://www.desertcart.com.ar/products/540339189-extra-advanced-mercury-free-hearing-aid-batteries-size-312-pack store_origin: AR region: Argentina --- # 2-3 years shelf life 80-pack long-lasting power Robust steel corrosion protection Extra Advanced Mercury Free Hearing Aid Batteries Size 312 (Pack of 80) **Brand:** rayovac **Price:** AR$138040 **Availability:** ✅ In Stock ## Summary > 🔊 Power your world with Rayovac’s unstoppable hearing aid batteries! ## Quick Answers - **What is this?** Extra Advanced Mercury Free Hearing Aid Batteries Size 312 (Pack of 80) by rayovac - **How much does it cost?** AR$138040 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/540339189-extra-advanced-mercury-free-hearing-aid-batteries-size-312-pack) ## Best For - rayovac enthusiasts ## Why This Product - Trusted rayovac brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ready When You Are:** Just remove the tab, wait 1 minute, and experience instant activation for your hearing aids. - • **Eco-Friendly & Mercury-Free:** Safe zinc-air technology that’s better for you and the planet. - • **Bulk Pack for Ultimate Convenience:** 80 batteries in one pack means fewer trips to restock and uninterrupted hearing aid use. - • **Built Tough to Protect Your Investment:** Steel housing guards against corrosion and physical damage, keeping your devices powered reliably. - • **Power That Lasts, From First Click to Final Buzz:** High energy density with a nearly flat drain curve ensures consistent performance throughout battery life. ## Overview Rayovac Extra Advanced Size 312 hearing aid batteries deliver reliable, mercury-free power with zinc-air technology, housed in durable steel for corrosion resistance. This 80-pack bulk set offers a 2-3 year shelf life and consistent energy output, making it the go-to choice for modern digital hearing aids. ## Description Trust the name you know - Rayovac offers fresh and powerful, mercury-free, zinc-air hearing aid batteries. Stock up on 10 packs of 8 batteries (total 80 batteries) and keep your devices powered for longer. Made in the USA - try Rayovac batteries today! Review: Doet wat het moet Review: Ok ## Features - Mercury Free 80 Pack A312 Hearing Aid Batteries with Zinc Air Technology High energy density and almost completely flat drain curve. Powerful from start to finish. Popular choice for modern digital behind-the-ear or in-ear hearing aids. Robust steel housing provides ultimate stability and protection against corrosion. 2 to 3 years shelf life, remove the tab and leave the battery exposed to air for 1 minute to activate the battery before inserting into the hearing aid ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07CZS4YMW | | Best Sellers Rank | #11,031 in Electronics ( See Top 100 in Electronics ) #336 in Disposable Household Batteries | | Item model number | 312 Extra Advanced | | Manufacturer | Rayovac | | Product Dimensions | 11.43 x 6.35 x 5.08 cm; 68 g | ## Product Details - **Battery capacity:** 1.45 Volts - **Battery cell composition:** Other Than Listed - **Brand:** Rayovac - **Number of batteries:** 80 Product Specific batteries required. - **Recommended uses for product:** Hearing Aid ## Images ![Extra Advanced Mercury Free Hearing Aid Batteries Size 312 (Pack of 80) - Image 1](https://m.media-amazon.com/images/I/61TJ76pgxwL.jpg) ## Questions & Answers **Q: In the description it says to expose to air for 1 minute to activate. Is this really necessary?** A: According to my audiologist, regulations now forbid the use of mercury in hearing aid batteries, so the modern ones run on different electro-chemical principles than batteries did formerly. If you look closely, you'll see tiny holes in the back of the battery that allow air to enter the battery once the tab is removed. This step, apparently, is necessary to give the battery a little head start in its operation. Again, my audiologist tells me that it's her experience that a 10-minute wait is preferable to a 2-3 minute wait in order to get maximum life out of a battery. My wife and I have been observing the 10-minute practice and find that the batteries last a little more than a week using them up to about 12 hours per day. **Q: How many days should these last if you take them out at night. What are the signals the battery needs replaced?** A: How long they last is determined by the hearing aids and how long they are worn. I love these batteries because I usually get ten days from each battery. I was getting five to seven days from other brands. Rayovac I have found last the longest for me. I wear my hearing aids for up to eighteen hours some days. **Q: Is it zinc-air?** A: I think so. I do not see anywhere on the packaging where it says it is zinc-air, but it does say it replaces all size 312 zinc-air batteries. Each battery also has a sticky tab over it, and they are mercury-free. **Q: What is the difference between the proline advanced rayovac and these extra advanced? other than the marketing guy out for drinks on friday.** A: I have used the Rayovac Extra Advanced and they last longer than a brand I was using before. I get about 4 days of power for my hearing aids. I see that the Proline Advanced are packaged with (40) batteries while the Extra Advanced are packaged with (60) batteries while the Proline Advanced priced higher than the Extra Advanced. ## Customer Reviews ### ⭐⭐⭐⭐ Review *by A***T on 11 February 2024* Doet wat het moet ### ⭐⭐⭐⭐⭐ Review *by A***O on 4 January 2026* Ok ### ⭐⭐⭐⭐⭐ Review *by L***O on 22 April 2025* Produto confiável, durabilidade média dentro do esperado. ## Frequently Bought Together - Rayovac Size 312 Extra Advanced Mercury Free Hearing Aid Batteries (80 Batteries) - Wax Guards for Oticon ProWax MiniFit Hearing Aid Supplies Replacement Wax Filters, Oticon Hearing aid Supplies (5 Packs/ 30 Pcs). --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.ar/products/540339189-extra-advanced-mercury-free-hearing-aid-batteries-size-312-pack](https://www.desertcart.com.ar/products/540339189-extra-advanced-mercury-free-hearing-aid-batteries-size-312-pack) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-07-05*