These batteries are used in the Unicorn, Pegasus, Phoenix and newer TT-2/4/6/8 units.
In the Unicorn Pegasus Phoenix units the battery is the clock and memory backup and has an average lifespan of 7 years. In the TT-2/4/6/8 the battery is the main power cell and can last up to 5 years.
Tadiran 3.6V/2400mAh
AA size Lithium Cylinder Cell 14.5mm x 50.5mm
Batteries are sold individually.