TL-2150/S 3.6 Volt 1000 mAh Lithium 1/2AA Battery. Our Tadiran TL-2150/S battery is commonly used in Utility Meters, Tracking Systems, Buoys, RF Systems, Oil & Gas, Medical Equipment, Wireless Systems, Security Devices, Industrial Applications as well as many others.  --- BatteryGuy PLC and Industrial Computer Batteries are Manufactured to Meet or Exceed the Quality of the Original Equipment Manufacturer.  Only the Highest Grade of Materials are Used to Manufacture our Batteries, with Safety and Performance in Mind.  Please be Aware of Online Pirate Companies who Make Their Own Batteries with Insufficient Safety Circuits and Low-Grade Materials.  Insufficient Circuits and Parts Can Result in a Possible Fire or Explosion in Some Cases. Brand: Tadiran Chemistry: Lithium Dimensions: 0.56" Diameter X 1" Long Connector Type: Button Top Pressure Points Description: Cylindrical Cell Battery Capacity: 1.0 Ah/ 1000 mAh KEY BENEFITS Greater energy density...Tadiran lithium thionyl chloride batteries offer the highest energy density of any primary cell: up to 710 Wh/Kg and 1420 Wh/I. Higher capacity...Tadiran cells feature the highest capacity by weight and volume compared to any known battery technology. Extended temperature range... Tadiran batteries can operate in temperatures ranging from -55°C to +125°C. However, to maximize the capacity, standard cylindrical wafer-type cells are rated to a maximum temperature of +85C. Special high-temperature cells are also available. Higher operating voltage...Tadiran lithium thionyl chloride cells have an open-circuit voltage of 3.67V and an operating voltage of up to 3.6V, a considerably higher voltage than almost any other primary cell. Longer life...Tadiran batteries feature an outstanding shelf life and long-term reliability. Over a ten-year period, Li/SOCl2 batteries stored at room temperature lose less than 10%