Long -term storage and reliability: The chemical properties of 90mah AVMZVO CR2016 are very stable, licking or exploiting ever exploiting. CR2016 has a durability of up to 5 years. There is no leak security: it passed ISO9001, SGS, security certification. Each battery is packed individually to avoid short -circuit problems, which makes it more secure and lasting. Stable voltage: reliable food source and longevity, suitable for the daily use of different devices and excellent performance in a wide temperature range.