Fanso is the lead manufacturer of primary lithium battery, including 3. 6V Li-SOCl2 battery and 3.0V Li-MnO2 battery.Annual production is more than 15 million pieces, under ISO 9001 Certified Quality Assurance System. Batteries are with UL(File No.: MH20923), UN, CE and CCC recognization.Advantage of our products is with high energy density, high circuit voltage, wide range of opertating voltage and current (over 90% of the total capacity is discharged at a high plateau voltage), long operating time (over 8 years ) for continuous low current discharge with medium current pulse and low self-discharge rate (less than 1% per year).Types:-- Bobbin (Energy)-- Spirally (Power)-- High TemperatureShape:-- Cylinder-- Button-- Flexible Soft Package-- Battery Pack Any questions, please feel free to contact us.Rita From Sales Team of Fanso