Cr1620 Battery Lithium ion 1680Wh 1600W 1680Wh China monitor battery for Emergency Use New 16 8v 4800mAh Universal Rechargeable Lithium Battery For Power Rechargeable 3 7V 280Mah 501740 Lithium Polymer Ion Battery For SMART Watch Battery CTL1616 CTL1616F Battery Watch Solar Rechargeable Battery. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit 1680 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: 1680_K0066411