The revised RoHS (Reduction of Hazardous Substances) Directive 2011/65/EU...

You’re always allowed to board the plane with your hearing aid batteries in the device. For regulations on bringing spare hearing aid batteries, please consider contacting your airline.

Batteries are chemical products which internally undergo certain chemical processes over time. Due to this process some batteries slightly discharge during storage.

Shelf life varies from product to product.

Expiry date indicates how long the battery will function properly according to industry standards.

No. All Panasonic rechargeable batteries come pre-charged. However, due to changes in conditions and temperature during transportation, some discharge may have occurred - meaning the battery may not be at full capacity when you take them out of the package.

Never use Ni-MH rechargeable batteries for waterproof appliances, appliances specifically designed for alkaline batteries, or in appliances with battery indicators.

Due to chemical reactions inside most batteries, the stored charge of the batteries is reduced little by little. This phenomenon is called self-discharge.

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

Assuming your device isn’t faulty, causes may lie in either improper contact with the terminal or in the batteries themselves.