Mighty Max Battery 6V 4.5AH for Jolt JP640 in the Device Replacement Maximum Energy C0640008 Button Battery Sa98c25c6c92749a1be2750b422cf90ccd.jpg Amazon.com: Mighty Max Battery 6V 1.3Ah Replacement Battery Compatible. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit C0640008 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: C0640008_K0054753