Understanding the Importance and Risks of Button Battery Today Tech GRP1054 Series Rechargeable Lithium Ion Button Cell Battery MIDI How to identify the type of button battery types and models of button Button Batteries 101: The Tiny Powerhouses Behind Modern Gadgets. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit 204 Operating Temperature Range: 40 Degrees Celsius to +85 Degrees Celsius Shelf Life: 5 years Leakage Resistance: Anti Leak Design Movement Compatibility: Quartz Swiss Movement Water Resistance Compatibility: Suitable for 50m Water Resistant Watches Mercury Free: Environmentally Friendly (0% Hg) High Low Temperature Tolerance: Extended Performance in Extreme Climates SKU: 204_K0066731