18V 4000mAh Li ion Battery For Hitachi BSL1815S BSL1825 BSL1830 330557 Reliable SL 21818P 03 BLBS Disc Battery For Watches Se97417e0028346d2b3b00775c2e2b25f1.jpg 18V 4000mAh Li ion Battery For Hitachi BSL1815S BSL1825 BSL1830 330557. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit SL 21818P 03 BLBS 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: SL 21818P 03 BLBS_K0051463