Multi functional key to aid battery removal in SmartCell wireless Coin Button Batteries, Rechargeable at 90 piece in Indore ID The Ultimate Guide to Button Battery: Types, Uses, and Safety Tips Recharge Button Batteries at Eva Gopinko blog. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit COL RET ILL Operating Temperature Range: 40 Degrees Celsius to +85 Degrees Celsius Shelf Life: 5 years Leakage Resistance: Anti Leak Design Movement Compatibility: Quartz Japanese 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: COL RET ILL_K0067179