Tadiran Lithium SL-550 1/2 AA Battery

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Dimensions 14.7 × 25.2 mm

Tadiran Batteries

Product Range

Tadiran SL-500 Series






Lithium Thionyl Chloride








1/2 AA


Axial Pins, Polarised Pins, Radial Pins, Tags

Data Sheets Technical Data SheetSafety Data SheetRoHS CertificateREACH ImplementationUN Test Summary
Weight N/A

Product Description

The Tadiran SL-550 standard 1/2 AA size lithium battery is part of the SL-500 series. Because of this, it offers an extended temperature range compared to the SL-700 series, meaning they boast an operating temperature of between -55ºC to +130ºC. Due to this, these batteries are perfect for use in high temperature applications.

Tadiran cells are known for having a high energy density and high terminal voltage. Additionally, they have an extremely low self discharge (less than 1% per annum) and the cases on these batteries are hermetically sealed, ensuring protection from leakage.

We supply this Tadiran battery as a standard cell or with Tags, Axial Pins, Polarised Pins or Radial Pins.


  • The four letters printed after “SL-550” on the cell determine traceability.
  • The SL-500 series are special Tadiran cells and will have a long lead time. Therefore, if we are low or out of stock, please get in touch to be advised on availability.

Battery Identification

  • MPN: SL-550, SL550, SL-550/S or SL550/S
  • IEC: ER14250
  • NSN: 6135-01-370-2599
  • NIIN: 013702599

Also Known As

  • SL-550/P or SL550/P (Axial Pins)
  • SL-550/PR or SL550/PR (Radial Pins)
  • SL-550/PT or SL550/PT (Polarised Pins)
  • SL-550/T or SL550/T (Tagged)
  • TLH-5902/P or TLH5902/P (Axial Pins)
  • TLH-5902/PR or TLH5902/PR (Radial Pins)
  • TLH-5902/PT or TLH5902/PT (Polarised Pins)
  • TLH-5902/S or TLH5902/S
  • TLH-5902/T or TLH5902/T (Tagged)

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