BBM stocks the Isreali made Tadiran TL2150/P, 1/2AA Lithium Battery. This 3,6V/1000mAh NON rechargeable Lithium Thionyl Chloride Battery, with PC pins, provides outstanding power retention - with a 10 year shelf life.
Battery Specifications:
Battery Type: Cylindrical Cell
Voltage: 3.6 V
Capacity : 1000 mAh
Chemistry: Lithium
Size: 1/2AA
Terminal Type: Button Top
Size/Dimensions: 0.57" Dia x 0.99" H (14.5mm x 25.2mm)
Spec sheet
MSDS (Material Safety Datasheet)