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

Please store your batteries in dry conditions, and avoid high temperatures and direct sunlight.

The memory effect is an occasional defect, which occurs in Ni-Cd and Ni-MH rechargeable batteries, where the maximum battery voltage decreases even though the original power of the battery remains the same.

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.

Battery leakage can be caused by various problems. Read on to learn more.

Any minor difference in the batteries will cause either batteries to overcompensate and to deplete faster.

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.

This is a guarantee that no mercury is added during production.

No. Do not use batteries in water or in vacuum conditions - this will cause them to rust and short-circuit.

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.