Zinc air button cell,1.4V nominal voltage, adopts Swiss advanced technology coupled with high-quality wearable and heat-resistant steel. 1.relatively high voltage, 2.smooth discharge curve, 3.low stream local action, 4.high capacity, 5.long-term storage duration, 6.be applicable to wide-range temperature, 7.excellent leakage resistance. Widely used for many types of hearing aids, etc.