BBM stocks the Isreali made Tadiran TL-2150, 1/2AA Lithium Battery. This 3,6V/1000mAh NON rechargeable Lithium Thionyl Chloride Battery provides outstanding power retention - with a 10 year shelf life.
To buy with axial leads or tabs ---see below:
Battery Type: Cylindrical Cell
Voltage: 3.6 V
mAh: 1000 mAh
Terminal Type: Button Top