Ultra Power Hearing Aid Battery. Zinc Air is the most popular power system. Through a unique construction that utilizes air from outside the battery, these batteries pack more energy into a battery cell than the older mercury and silver systems. With zinc air batteries, you can expect fewer battery replacements, clearer tones, fewer volume adjustments, and longer battery life than mercury batteries. iCellTech Ultra Power Zinc Air Battery is specially designed to reduce sound distortion and provide longer life in high drain applications. Ultra Power may be better for you if... You have difficulty hearing in crowds or noisy places. You do not always receive clear sound. You do not always receive the battery life you should. You wear hearing aids classified as high drain or high power. You spend lots of * to buy hearing aid batteries
