5 Pieces Fresh Energizer ECR 2025 CR 2025 Lithium 3V Battery CR2025 Expire 2031 Rest assured your device will remain powered for a long time using trusted and reliable Energizer button and coin cell batteries. Ideal for use inWatches Calculators Laser pointers Keyless entry Digital thermometers Car alarms and more... Classification: "Lithium Coin" Chemical System: Lithium / Manganese Dioxide (Li/MnO2) Designation: ANSI / NEDA-5003LC, IEC-CR2025 Nominal Voltage: 3.0 Volts Typical Capacity: 163 mAh (to 2.0 volts) (Rated at 15K ohms at 21°C) Typical Weight: 2.6 grams (0.08 oz.) Typical Volume: 0.8 cubic centimeters (0.05 cubic inch) Max Rev Charge: 1 microampere Energy Density: 176 milliwatt hr/g, 616 milliwatt hr/cc Typical Li Content: 0.078 grams (0.0028 oz.)