Frequently Asked Questions

Following Q&A will teach you everything you wanted to know about batteries and how to optimize the usage.
You can, but they’ll perform best in medium- to high-drain devices.
No. Do not use batteries in water or in vacuum conditions - this will cause them to rust and short-circuit.
Yes, the batteries' weight does change during usage.
When inserting a battery, make sure you do the following: insert it the correct way, with plus and minus poles touching the right terminals; use the right coin battery size; avoid dirt or any other substances obstructing proper contact; carefully insert it, not putting stress on it as you’re closing up the holder. Makes sure it makes contact with the terminals.
Zinc air battery are different from other batteries. They do not contain active materials in their positive electrode. This type of battery reacts with air - so it’s important to remove the tag before inserting the battery into your device. They provide a current of 1.4V if used correctly.
The ideal temperature for our primary batteries is between 5°C up to 45°C. 
Always remove batteries from devices you don’t use for longer periods, from devices connected to AC power and when batteries are empty.
While most batteries will still work in extreme temperatures (albeit with shorter lifespans), Panasonic EVOLTA NEO is your best choice for extreme cold or warm weather.
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 appliances without a charging function, yes. In appliances that do have a charging function, be sure to check whether the function was specifically designed for Ni-MH. If not, it’s best not to use Ni-MH batteries.

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