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Small cylindrical lithium cell with button top, silver finish

Tadiran

Tadiran TL-4955/S 3.6V 2/3 AA 1.65Ah lithium standard battery

SKU CH-E2SF-WESRG

A 3.6 V lithium thionyl chloride cell in 2/3 AA size delivering 1.65 Ah with a ten-year shelf life and operation from -60 °C to +85 °C

  • TypeBatteries
  • Battery Pack1-pack
  • Battery TypeLithium
  • Battery Voltage3.6V
  • High 3.6V operating voltage maintained across most of the battery's lifetime
  • 65Ah capacity among the highest available for this lithium thionyl chloride size
  • Shelf life exceeds 10 years with under 1% annual self-discharge at 20°C
  • Reliable operation from -60°C to +85°C in humid or low-magnetic environments
  • Non-rechargeable primary cell delivering up to 75mA pulse current for demanding applications

Product Identity

The Tadiran TL-4955/S is a 3.6V 2/3 AA lithium thionyl chloride cell rated at 1.65Ah. It arrives as a single new unit with a button-top termination, intended for professional and industrial equipment that demands long-life primary power.

Suitability

This cell suits devices requiring a high, stable voltage over a wide temperature span from -60°C to +85°C and a shelf life exceeding 10 years. It is not for users needing a rechargeable battery, nor for applications drawing more than 35mA continuously or 75mA in pulses.

Build Integration

The 14.5mm diameter and 33.5mm height fit standard 2/3 AA compartments, while the 12.5g weight adds minimal mass. Its low self-discharge and resistance to humid environments free designers from frequent replacement cycles and tight environmental sealing.

Highlights

  • High 3.6V operating voltage maintained across most of the battery's lifetime
  • 65Ah capacity among the highest available for this lithium thionyl chloride size
  • Shelf life exceeds 10 years with under 1% annual self-discharge at 20°C
  • Reliable operation from -60°C to +85°C in humid or low-magnetic environments
  • Non-rechargeable primary cell delivering up to 75mA pulse current for demanding applications

Specifications

TypeBatteries
Battery Pack1-pack
Battery TypeLithium
Battery Voltage3.6V

Questions about this item

What device voltage does the 3.6 V lithium cell need to match?

The cell supplies 3.6 V; the host device must be designed for a 3.6 V lithium thionyl chloride primary cell.

Will the 14.5 mm diameter and 33.5 mm height fit the same compartment as a TL-5155?

Yes, the TL-5155 shares the 2/3 AA form factor, so the 14.5 mm by 33.5 mm dimensions are interchangeable.

How can I confirm the battery is healthy after installation?

Measure open-circuit voltage — a fresh cell reads near 3.6 V — and verify the device draws no more than 35 mA continuous or 75 mA pulse current.

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