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Tadiran
Tadiran TL-4920/S XOL 3.6V 8.5Ah C Lithium Battery
A 3.6V lithium thionyl chloride C cell delivering 8.5Ah with a 10+ year shelf life and -60°C to +85°C operating range
- Battery Type26500
- Long shelf life backed by 10+ year storage rating
- High 8.5 Ah capacity for extended runtime in C-size format
- Wide operating range from -60°C to +85°C for harsh environments
- Low self-discharge under 1% per year at +20°C storage
- Button-top termination fits ER26500 and LS26500 compatible devices
What this battery is and who it suits
The Tadiran TL-4920/S XOL is a 3.6V C-size lithium thionyl chloride cell rated at 8.5 Ah. It is built for devices that need a very long service life with minimal self-discharge, such as utility meters, remote sensors, alarm panels and industrial data loggers. The chemistry is not rechargeable and must not be placed in a charger.
Build quality and daily use implications
The button-top termination fits holders designed for ER26500 or LS26500 cells, and the 26 mm by 50 mm footprint matches the standard C form factor. A stainless steel container with a hermetic glass-to-metal seal resists humidity and mechanical shock, while the non-flammable, non-pressurised electrolyte remains stable from -60°C to +85°C. Low magnetic signature and a self-discharge rate below 1% per year at 20°C mean the cell can sit in standby for a decade without significant capacity loss.
What the bundled accessories or software change
No accessories, cables or software are supplied with the cell. Compatibility is limited to the listed cross-reference models such as TL-5920, SB-C01, SB-C02, XL-140F, XL-145F, PT-2200 and SL-770. The battery is not suited for applications that require continuous currents above 75 mA or pulse currents beyond 200 mA, nor for any design that mixes different cell models in series.
Highlights
- Long shelf life backed by 10+ year storage rating
- High 8.5 Ah capacity for extended runtime in C-size format
- Wide operating range from -60°C to +85°C for harsh environments
- Low self-discharge under 1% per year at +20°C storage
- Button-top termination fits ER26500 and LS26500 compatible devices
Specifications
| Battery Type | 26500 |
|---|
Questions about this item
What continuous current does the 3.6 V lithium thionyl chloride cell support?
The TL-4920/S XOL is rated for a maximum recommended continuous current of 75 mA and can deliver pulses up to 200 mA.
What are the physical dimensions of this C-size 26500 battery?
The cell measures 26 mm in diameter and 50 mm in height, weighs 49.5 g, and features a button-top termination.
How should the TL-4920/S be installed to avoid a common mistake?
Insert the battery with the button top facing the positive contact, do not attempt to recharge it, and never mix it with different models in series.
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