Frequently Asked Questions

Following Q&A will teach you everything you wanted to know about batteries and how to optimize the usage.
Never mix batteries. Mixing batteries causes an imbalance in the energy flow. Some batteries will overcompensate this by discharging faster than usual - greatly reducing their lifespan.
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.
Panasonic hearing aid batteries contain zinc, which reacts with air. They do not contain lithium.
The main difference between a zinc battery and an alkaline battery is the type of electrolyte used in both batteries. Because of the composition, an alkaline battery delivers more energy than a zinc battery. Both batteries should thus be used in different appliances.
Please store your batteries in dry conditions, and avoid high temperatures and direct sunlight.
Never try to charge Panasonic lithium coin batteries, as they cannot be recharged.
Do not throw batteries in the trash. You can recycle every battery type you use - even unusable rechargeable batteries. Recycling points and regulations are different in every country.
Panasonic hearing aid batteries are extremely safe. Unless they’re put under extreme circumstances, temperatures or pressure, they provide a very safe power source for your hearing aids.
In general, appliances are designed to match the characteristics of dry batteries and to work within the voltage range of 1.5V to 0.9V. Thanks to this characteristic, Ni-MH rechargeable batteries can be used in appliances which require alkaline batteries, even with lower initial voltage. 
This is a guarantee that no mercury is added during production.