RS PRO Lithium Thionyl Chloride 3.6V 1/2 AA Battery | RS
EEMB ER14250 LS14250 1/2AA 3.6V 1200mAh Lithium Battery half aa batteries Li-SOCL₂ Non-Rechargeable Battery for Dogwatch Dog Collar and Some of Movement Monitor/Home Security/Alarm System (10): Amazon.co.uk: Electronics & Photo
1/2AA Lithium Battery for USB Data Loggers - Gilson Co.