ZeniPower Hearing Aid Batteries Size 312, 50 x 6 Dial Cards = 300 Batteries

300 ZeniPower Batteries, Size 312 Zinc Air Hearing Aid Batteries. (300 batteries Standard dial pack, 50 cards of 6 cells each). ZeniPower hearing aid batteries and cochlear batteries, is the only zinc air button battery manufacturer in China. With over 22 years in research and development and a patented unique technology, you will be satisfied with ZeniPower zinc air batteries. Hearing aids using zinc air battery size A10 to A675. You can expect fewer battery replacements, clearer tones, less distortion, fewer volume adjustments, and longer service life. With any "zinc-air" hearing aid battery that is "air activated", it is highly recommended that you wait at least 60 seconds after you remove the protective battery tab before before inserting the cell into the device to allow activation. This will activate the battery and you will get the best possible use out of every cell. Premium Batteries that offer quality at an economical price.