Monarch BBL Battery 6.0V 3500mAh NiMH MRH628SL SIMPOWER Monster Marine Lithium 36V 100Ah Lithium Marine Deep Cycle Trolling Monarch BBL Battery 6.0V 3500mAh NiMH MRH628SL SIMPOWER Store Home Products Feedback. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit MT BL 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: MT BL_K0052556