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

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.

In general it’s best to never let your batteries deplete completely. Try to recharge them before the energy level drops below 30%.

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

Never apply heat to batteries. Keep them away from any heat sources like heaters, candles, stoves and fires. Exposing them to too much heat could cause them to tear, leak or even explode.

Always remove the tab a few minutes prior to installing it into your hearing aid. This allows the battery chemicals to activate.

At this point Panasonic does not produce AAAA or LR61 batteries.

While leakage is rare, it may still occur if the battery is used incorrectly. Leakage is usually caused by leaving the battery in an unused device or short-circuiting.

Replace all batteries at the same time. Do not mix old and new batteries. Use batteries from the same brand, type and expiry date too.

The ideal temperature for our primary batteries is between 5°C up to 45°C.