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ZPower 312 Rechargeable Hearing Aid Battery

ZPower 312 Rechargeable Hearing Aid Battery

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Widex-compatible ZPower 312 Rechargeable Hearing Aid Battery. Unique long-lasting rechargeable battery made exclusively for ZPower-enabled devices.

ZPower 312 Rechargeable Hearing Aid Battery Features​

Advanced silver-zinc rechargeable hearing aid battery for use with ZPower Rechargeable System

A Small Battery With Big Benefits.


After 50 Years and Millions of Miles, ZPower Silver-Zinc Has Arrived.

During the 1960s, NASA developed silver-zinc batteries for mission-critical applications in spacecraft, including the Apollo command module. Although the batteries offered high energy density, they had narrow applications due to their raw materials expense and low cycle life. More than 100 patents later, ZPower has led the way in making this superior chemistry smaller and fully rechargeable — and in the process opening a world of exciting new applications.
  • ZPOWER 312 SILVER-ZINC RECHARGEABLE MICRO-BATTERIES – See Description for list of compatible devices. ZPower micro-battery is easily scalable to multiple applications and devices across a broad spectrum of industries
  • LONG LASTING – ZPower has developed a proprietary silver-zinc microbattery technology that can be recharged hundreds of times without losing significant energy. Batteries should be replaced annually
  • ECO-FRIENDLY AND SAFE – ZPower’s batteries are one of the most environmentally responsible batteries available. They are water based, nonflammable and fully recyclable
  • PURCHASE INCLUDES – 1 ZPower Rechargeable Battery (1/Pack)

ZPower Rechargeable Hearing Aid Battery (Silver-Zinc).

    • AMERICAN-MADE POWER AND QUALITY – Every ZPower battery is made by American workers at our manufacturing plant in Camarillo, California.


A Superior Chemistry

From the outset, silver-zinc’s combination of stability and high energy density presented tremendous potential for applications that place a high priority on size, safety and performance.

While Li-ion is primarily landfilled or downcycled, silver-zinc is recyclable. It is also mercury-free.


Long-Lasting

Using our patented charging method, we’ve significantly extended the typical cycle life of silver-zinc, retaining over 85% capacity after 500 cycles.
  • ZPOWER 312 SILVER-ZINC RECHARGEABLE MICRO-BATTERIES – See Description for list of compatible devices. ZPower micro-battery is easily scalable to multiple applications and devices across a broad spectrum of industries
  • LONG LASTING – ZPower has developed a proprietary silver-zinc microbattery technology that can be recharged hundreds of times without losing significant energy. Batteries should be replaced annually
  • ECO-FRIENDLY AND SAFE – ZPower’s batteries are one of the most environmentally responsible batteries available. They are water based, nonflammable and fully recyclable
  • AMERICAN-MADE POWER AND QUALITY – Every ZPower battery is made by American workers at our manufacturing plant in Camarillo, California

ZPower Hearing Aid Battery - Exploded View


Making the Change to Rechargeable is Easy.

The award-winning ZPower Rechargeable System for Hearing Aids makes many of today’s most popular hearing aids rechargeable. The Rechargeable System consists of rechargeable silver-zinc batteries, custom hearing aid battery doors that are compatible with both ZPower batteries and zinc air batteries, and a charging station.

Users love the convenience of having hearing aids they can confidently wear all day and recharge overnight. They also love the flexibility to still use disposable batteries, if necessary.

In short, our micro-batteries enable the design of safer and more compact products, while elevating the customer experience.

ZPower supplies many major hearing aid OEMs, helping them to bring the convenience of rechargeable hearing aids to more patients.

ZPower Hearing Aid Manufacturer Partners




















Silver-Zinc Begins Where Li-ion Leaves Off

Li-ion batteries have enabled countless innovations since the 1990s, and they continue to be a vitally important component for hundreds of products. But they have serious limitations — primarily size, energy density and safety — that impede manufacturers from making smaller, safer products. Silver-zinc provides clear superiority for devices that require close physical contact with the user, and applications in which miniaturization is a prime consideration.

More Energy in Less Space

Silver-zinc can deliver the same amount of energy as other batteries in a more compact space. This size advantage is further enhanced by its water-based chemistry, which alleviates the need for protective casings and packaging that increase bulk.

As microbattery volume decreases, Lithium-ion’s energy densities fall off rapidly.


As microbattery volume decreases, ZPower cells can maintain high energy density.


Today ZPower only utilizes ~58% of the cell’s active materials.

 Compatible Hearing Aids

  • Starkey 
    – Muse micro RIC 312 (ZCode: Z501-312)
  • Unitron 
    – Moxi Fit R (ZCode: Z305-312)
    – Stride M R (ZCode: Z306-312)
  • Oticon 
    – Opn miniRITE (ZCode: Z601-312)
  • ReSound 
    – ReSound LiNX 3D (ZCode: Z101-312)
  • Widex 
    – BEYOND Z (ZCode: Z701-312)
    – EVOKE Z (ZCode: Z701-312)
  • Bernafon 
    – Zerena (ZCode: Z602-312)
  • Sonic 
    – Enchant (Z602-312)
  • Beltone 
    – Trust (ZCode: Z101-312)
    – Legend (ZCode: Z101-312)
    – First (ZCode: Z101-312)
  • NuEar 
    – NOW Premier Wireless (Z501-312)
  • Audibel 
    – Audibel A4 Platinum Wireless (Z501-312)
  • Signia 
    – Signia Pure (Z202-312)
    – Rexton Emerald (Z202-312)