Panasonic CR1616 3 Volt, 55 mAh, Lithium Coin Cell Battery

Specifications
Brand: Panasonic
Battery Size: CR1616
Chemistry: Lithium Manganese Dioxide (LiMnO2)
Nominal Voltage: 3.0 Volts
Nominal Capacity: 55 mAh
Operating Temperature Range: -22°F to 140°F (-20°C to 60°C)
Shelf Life: 10 Years
Dimensions:
Height - 0.06" (1.6 mm)
Diameter - 0.63" (16 mm)

Features
Perfect for calculators, remote starters, medical devices and other small electronics
Low self-discharge rate gives battery incredibly long shelf life