Tadiran TL-2450/P 3.6V 0.55 Ah Lithium Battery w/ PC Pins

Voltage: 3.6 Volt
Capacity: 0.55 Ah
Size: Wafer
Chemistry: Lithium Thionyl Chloride (Li-SOCI2)
Brand: Tadiran
Termination Style: PC Pin (2 pins)
Shelf Life: 10+ Years
Diameter (max): 32.9 mm ( 0.52 in)
Height (max): 24 mm ( 0.945 in)
Typical weight: 8.8 g ( 0.31 oz)

High operating voltage, stable during most of the application lifetime
Some of the highest nominal capacities on the market today
Excellent reliability over extended operating life
Operating Temperature Range: -60°C/+85°C (-76°F/+185°F)
Low self-discharge rate (less than 1% after 1 year of storage at + 20°C)
Excellent resistance to humid environment
Low magnetic signature
Non-flammable (and non-pressurized at ambient temperature) inorganic (but corrosive) electrolyte
Less than 1% capacity loss during storage at ambient temperature before use

This battery is not rechargeable. Do not try to recharge.
The storage area should be clean, cool (not exceeding +30 Deg C ), dry and ventilated.
Don't use different models of battery in series.
Do not use if the battery casing was mangled.