power one

What defines us

Hearing aid batteries from power one come from a long tradition: "Made in Germany", they are among the world's top-selling batteries. The reasons for their extraordinary success: they combine the highest quality and reliability, an extremely long life and maximum comfort. test

At power one, every battery is tested before it leaves the works - 100%. The comfort packaging then receives a quality seal, which safely seals and protects it. The rustproof batteries themselves have an outstanding service life, especially where high power demands are concerned. Behind all this is a special, patented technology that enhances the cell voltage.
power one is particularly consumer-minded when it comes to handling the battery. Extra long tabs facilitate removal of the cell from the packaging and insertion into the hearing aid.

The environment is equally important to power one. Hence, power one is the only manufacturer in the world to provide a complete range of environmentally friendly rechargeable nickel-metal hydride batteries, together with chargers, for hearing aids.

Research and Development

In our R&D centre in the Swabian town of Ellwangen, our scientists devote their time to developing the battery of the future.

Rechargeable batteries in particular are considered to be a key technology for eco-friendly energy use. Where hearing aids are concerned, technically sophisticated energy storage devices are an important requirement for progress. Only these provide such high performance in terms of sound processing or noise suppression, as is possible today. 

As a technology leader, power one therefore invests heavily in basic research. This gives consumers the certainty of always using the latest state-of-the art battery technology. Our products are already setting new standards. They are used all over the world, not least because they provide maximum power under all climatic conditions.


Our focus is on the highest quality, reliability and utmost customer orientation.

To conserve resources, we use environmentally friendly materials for our packaging and our manufacturing processes are carefully and continuously developed. For our responsible approach to the environment, our environmental management system is certified to the ISO 14001 standard and our energy management is certified to ISO 50001 : 2011.

Hearing aid reliability is a top priority, which is why at power one we strive for unique quality and maximum safety in addition to top performance. The quality of our products meets all requirements set by the medical device industry. We are certified as a medical device manufacturer according to DIN ISO 13485.


VARTA AG produces and markets a comprehensive battery portfolio ranging from microbatteries, household batteries, energy storage systems to customized battery solutions for a wide range of applications, and sets the industry standards as a technology leader in key areas. As the Group's parent company, it operates in the business segments "Microbatteries & Solutions" and "Household Batteries".

The "Microbatteries & Solutions" segment focuses on the OEM business for micro batteries as well as the lithium-ion battery pack business. Through intensive research and development, VARTA sets the global standards in microbatteries and is a recognized innovation leader in the key growth markets of lithium-ion technology and primary hearing aid batteries. The "Household Batteries" segment comprises the battery business for end customers, including household batteries, rechargeable batteries, chargers, portable power (power banks) and lights as well as energy storage devices.

The VARTA AG Group currently employs nearly 5,000 people. With five production and manufacturing facilities in Europe and Asia, as well as distribution centers in Asia, Europe and the USA, VARTA AG's operating subsidiaries are currently active in over 75 countries worldwide.