Tadiran TL-4903 size AA Lithium Battery 3.6V - non Rechargeable Tadiran Batteries

Tadiran TL-4903 size AA Lithium Battery 3.6V - non Rechargeable

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Tadiran TL-4903
made in Israel
Lithium Battery
3.6V
non Rechargeable
Lithium Thionyl Chloride
size AA
0.57" Dia x 1.99" H
14.5mm x 50.5mm

The Tadiran TL-4903 is a high-performance Lithium Thionyl Chloride (LiSOCl2) battery, specifically designed for long-term use in industrial and professional electronics.

Unlike standard household batteries, this is a specialized power source known for its "wafer" shape and exceptional shelf life.
Key Technical Specifications
Voltage: 3.6V

Capacity: 1.2A (1200 mAh)
Size: AA (Wafer construction)

Operating Temperature: -55°C to +85°C

Self-Discharge Rate: Less than 1% per year at room temperature.
Why It’s Unique
Longevity: These batteries are built to last 10 to 20 years in low-drain applications. They are often the "set it and forget it" choice for critical systems.
High Energy Density: It packs a significant amount of power into a small AA-sized frame, though it is designed for low-current pulses rather than high-drain devices like motor-driven tools.
Hermetic Sealing: The glass-to-metal seal ensures the battery doesn't leak, even under extreme environmental stress or pressure changes.
Common Applications
You will typically find the TL-4903 in equipment where losing power or changing batteries frequently is not an option:
Memory Backup (CMOS): Keeping clock settings and BIOS data alive in industrial computers and CNC machines.
Utility Meters: Powering smart gas, water, and electricity meters.

Security Systems: Used in wireless sensors and alarms.

Medical Devices: High-reliability power for portable monitoring equipment.