The everActive Ultrasonic 312 hearing aid batteries are mercury-free and therefore as environmentally friendly as possible. The modern manufacturing process without toxic mercury increases the safety of battery use and facilitates the disposal of used cells - the negative impact of batteries on the environment is minimised.

The everActive batteries are at least as powerful as the batteries of the top brands - at the same time they offer excellent value for money. excellent compatibility and power capacity - everActive batteries work with any hearing aid, including modern hearing implants and speech processors!

Specifications of the everActive Ultrasonic 312 hearing aid batteries:

• Colour code: brown

• IEC PR41/ PR736

• Size: 312

• Technology: Chemical zinc-air

• Voltage: 1.45 Volt

• Height: 3.6 mm

• Diameter: 7.9 mm

• Weight: 0.58 grams

Why zinc-air technology for hearing aid batteries?
Zinc-air hearing aid batteries have a particularly high energy density and offer an almost horizontal discharge curve. They are therefore the optimum power supply for hearing aids in particular. The air holes in the battery are initially covered with a protective film. This keeps it in a "resting state" until it is needed. The system-related self-discharge of zinc-air batteries with a protective film attached is only around 3 % per year. The foil is removed when the battery is inserted into the hearing aid. After a few seconds of activation, the battery begins to emit current. When activated (protective foil removed), zinc-air batteries have a limited shelf life and should be used as soon as possible.