Coin Cell Battery, Battery Size 2430, Battery Chemistry Lithium, Voltage - Batteries 3V DC, Standard Battery Pack Size 1, Capacity - Batteries 270 mAh, Battery Cross-Reference 5011LC, CR2430, DL2439, ECR2430, L20, Drain Type - Battery High Drain, Diameter 0.961 in, Depth 0.112 in, Max. Operating Temp. 140 Degrees F, Min. Operating Temp. -4 Degrees F, Standards ANSI, Color Code No Code