The high tech Tadiran SL-760 AA 3. 6V Lithium Thionyl Chloride Battery.
Tadiran SL-760 AA Li-SOCl2 Lithium Thionyl Chloride 3.6V Batteries x 2
Tadiran SL-760 AA Li-SOCl2 Lithium Thionyl Chloride 3.6V Batteries
Tadiran SL-760 AA Li-SOCl2 Lithium Thionyl Chloride 3.6V Battery x 1
Tadiran SL-750 1/2AA Li-SOCl2 Lithium Thionyl Chloride 3.6V Batteries x 4
Saft LS14500 Li-SOCI2 Lithium Thionyl Chloride 3.6V AA Batteries x 2
Saft LS14500 Li-SOCI2 Lithium Thionyl Chloride 3.6V AA Batteries x 4