2/3A Lithium Thionyl Chloride battery is known by many terms such as 17330, ER17335, ER123A, 2/3A and more. They can be found in many applications such as Utility metering, Automatic meter reading, Alarms and security devices, Tollgate systems, Memory back-up, Computer real-time clocks, Tracking systems, Automotive electronics, Professional electronics. Lithium Thionyl Chloride chemical nomenclature is Li-SOCl₂. Our brands include Saft, Omnicel, Tadiran and Xeno.