The Energizer CR2025 3V Lithium Coin Battery Twin Pack delivers dependable, long-lasting power for a wide range of compact electronics. Each CR2025 cell measures 20 mm x 2.5 mm, operates at a steady 3V output, and provides a capacity of 170 mAh -- making it ideal for powering camera remote controls, key fobs, keyless entry systems, watches, calculators, heart-rate monitors, glucose monitors, and other small devices. Built with Energizer's proven lithium chemistry, these batteries perform reliably across extreme temperatures (-30 to 60 degrees Celsius) and hold their charge for up to 8 years in storage, so you always have power on hand when you need it. Compatible replacements include DL2025, ECR2025, BR2025, LM2025, and SB-T14. This twin pack ensures you have a spare ready to go.