The Energizer CR2016 is a 3-volt lithium coin cell battery built to deliver reliable, long-lasting power for the small electronic devices you depend on every day. Using a lithium manganese dioxide (Li/MnO2) chemical system, it delivers a stable 3V output with a nominal capacity of around 90-100 mAh and a flat discharge curve that maintains consistent voltage right through its service life. Measuring just 20mm in diameter and 1.6mm thick, the CR2016 is a compact powerhouse suited to key fobs, car remotes, heart rate monitors, glucose monitors, calculators, toys, games, watches, and electronic organisers. Engineered to withstand extreme temperatures from -30 degrees C to 60 degrees C, it performs reliably whether you are indoors or outdoors. With a shelf life of up to 10 years in storage, you can stock up with confidence knowing your batteries will be ready when you need them. The CR2016 is manufactured with zero added mercury and comes in child-resistant packaging for added safety at home. It is compatible with a range of equivalent designations including DL2016, ECR2016, BR2016, KCR2016, and 5000LC.