"Industrial lithium battery from Tadiran.
These batteries have excellent properties for professional and industrial use.
Designed for use in extended temperature rangeExcellent shelf life (10 years)Extremely low self-discharge rate (1% or less per year)Suitable for long-term use at low currentSuitable for low current levels and long standsAdditional for the SL-500 series:Expanded temperature range up to +130°CSlightly lower capacityOther features identical to SL-700 seriesTechnical data:Cell size: 1/2 AA (Mignon)System: LiSOCl2Voltage: 3.6 VCapacity: 800 mAhPlug-in system: U solder tagCell type: industry"