Lithium-thionyl chloride (Li-SoCl2) battery pack features 3.6V Operating voltage and 1200mAh capacity in a small 1/2AA form factor with Molex(2695) 22-01-3027 (2 pin) Termination, BS1200C1425001S1PCMW | GlobTek
SL561/T Tadiran | Tadiran Lithium Thionyl Chloride 3.6V, 2/3 AA 2/3 AA Battery | 526-8526 | RS Components
Advantages and Special Characteristics of Lithium Thionyl Chloride Batteries – Jauch Blog