2016 Brand New Battery for GV18 Smart Watch;GV18 Battery:3.7V 550mAh,Li JMP Battery 4S 6000MAH 14.8V 60C RYTF MAXX AXIAL03005 Model Car Battery [Set] CM.138 TTI JW3 Combat Master AEP MOSFET Pistol [EMG] + Battery Amazon.com : Nikon MB D18 Multi Power Battery Pack Black 7.2 x 4.06 x 4. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit JMP18 Operating Temperature Range: 40 Degrees Celsius to +85 Degrees Celsius Shelf Life: 5 years Leakage Resistance: Anti Leak Design Movement Compatibility: Quartz Swiss or Chinese or 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: JMP18_K0064518