everActive ULTRASONIC 312 Hearing Aid Batteries (PR41, Zinc-Air, 1.45V, 170mAh, Mercury-Free, 6-Pack Blister)

Hearing aid users who demand consistent performance and long service life will appreciate the everActive ULTRASONIC 312 batteries. Engineered with high-performance zinc-air chemistry and a mercury-free formula, these cells deliver a stable 1.45V output and a typical capacity of 170mAh. Unlike standard alternatives, the ULTRASONIC series is built to maintain reliable power for advanced hearing aids, including Bluetooth streaming models, ensuring clear sound throughout the day. Each blister pack contains six individually sealed batteries, preserving freshness for up to four years in storage.

Highlights

• High-performance zinc-air technology for consistent voltage and long runtime
• Mercury-free (0% Hg) — safe for you and the environment
• Typical capacity 170mAh — ideal for power-hungry hearing aids
• Brown color code for easy identification of size 312
• Six batteries per blister pack, individually sealed for freshness
• Up to 4-year shelf life when stored unopened

In daily use

These batteries are designed for modern hearing aids that require reliable power for streaming, noise reduction, and directional microphones. The zinc-air system activates when the tab is removed, and the battery reaches full power within a minute. The stable 1.45V output ensures consistent amplification, reducing the risk of sudden volume drops. The compact 7.9mm diameter and 3.6mm height fit all standard 312 battery compartments.

Full specifications

• Battery type: Zinc-Air
• Battery size: 312
• IEC code: PR41
• ANSI code: 7002ZD
• Nominal voltage: 1.45V
• Typical capacity: 170mAh
• Diameter: 7.9mm
• Height: 3.6mm
• Mercury content: Mercury-free (0% Hg)
• Packaging: Blister pack
• Batteries per pack: 6
• Shelf life: up to 4 years
• Color code: Brown
• Series: ULTRASONIC
• Primary application: Hearing aids

Final note

For dependable hearing aid power without compromise, the everActive ULTRASONIC 312 batteries offer a mercury-free, high-capacity solution that keeps you connected to the sounds that matter.