The TESLA CR2016 is a lithium manganese dioxide coin cell battery designed to provide reliable power for small electronic devices. With a nominal voltage of 3V and a capacity ranging between 80mAh and 90mAh, these silver-colored cells are ideal for low-drain applications such as car keys, watches, and remote controls. You will also find them useful for maintaining computer memory backups, powering electronic scales, or supporting various photo equipment. Each cell is compact, measuring 20.0 mm in diameter and 1.6 mm in height, with a lightweight build of approximately 1.7 g to 1.9 g. This pack includes five batteries secured in a blister pack, which helps preserve their 5-year shelf life at room temperature so you have a spare ready whenever a device runs low.