Immediately head to the nearest emergency room. Avoid drinking or eating before a doctor has provided a decent diagnosis.

Use batteries for their right purpose: insert them correctly, replace them when empty and store them dry and at room temperature.

Panasonic EVOLTA NEO is your best choice for high-drain devices. Thanks to more precise manufacturing, increased density and silver compounds, the battery will greatly outperform other batteries.

Operating times may vary depending on the conditions in which you use your hearing aid. The most common cause is not letting it breathe after you take off the seal. Ensure at least 60 seconds of air flow before inserting it into the hearing aid.

Panasonic hearing aid batteries, or zinc air batteries, react with air. As soon as you pull off the seal, the battery will be able to release energy. Be sure to let the battery breathe for a few minutes before inserting it into your device.

Whereas some heat is normal, unusually hot batteries could be caused by over-discharging or short-circuiting. In such case, remove them from the device immediately.

Battery lifespan greatly depends on the device and on the conditions.

You can download the manuals of our chargers on our website.

Panasonic zinc air batteries have been specifically designed for hearing aids, other batteries may not perform as well.

Yes, the batteries' weight does change during usage.