Specifications: Voltage: 3.6V Capacity: 2.1 Ah Size: AA Chemistry: Lithium Thionyl Chloride (Li-SOCI2) Brand: Tadiran Termination Style: Axial Leads Shelf Life: 10+ Years Diameter(max): 14.5 mm (0.57 in) Height (max): 50.5 mm (1.99 in) Typical weight: 17.6g (0.62 oz) Included Qty: 2 Key Features: 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 environments 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 Compatible With: Tadiran TL-4903 Tadiran TL-5903 Tadiran TL-2100 Saft LS-14500 Saft LS-14500C Saft LS33600 Sonnenschein SL-360/S Sonnenschein SL-760/S Maxell ER6S-TC Minamoto ER14505 Xeno XL-060F ER6 XL-060F SB-AA11 PT-2100 Warning: 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. Soldering the tab should be finished in few seconds. Do not use if the battery casing was mangled