Specifications：

Classification: "Lithium Coin" Chemical System: Lithium / Manganese Dioxide (Li/MnO2 ) 

Designation: ANSI-5012LC, IEC-CR1220 

Nominal Voltage: 3.0 Volts 

Typical Capacity: 37 mAh (to 2.0 volts) (Rated at 45K ohms at 21°C) 

Typical Weight: 0.8 grams (0.03 oz.) 

Typical Volume: 0.25 cubic centimeters (0.02 cubic inch) 

Max Rev Charge: 1 microampere 

Energy Density: 153 milliwatt hr/g, 464 milliwatt hr/cc 

Typical Li Content: 0.006 grams (0.0002 oz.) 

Operating Temp: -30C to 70C 

Self Discharge: ~1% / year