... launched in the world by authorities.∴ We have got patents of invention in China.Features: 1, High capacity, up to 210mAh for ... deteriorate at a high temperature 5, Light weight, 70% weight of silver zinc and zinc-manganese battery. 6, Environment-friendly, RoHS ... battery. Abundant materials in Li-FeS2 ensure the mass production of Li-FeS2 button battery.Application:Digital calipers, calculators, DV, ...