LS26500 FLC

## Primary lithium battery LS 26500 

3.6 V Primary lithium-thionyl chloride (Li-SOCl2) High energy density C-size bobbin cell 

## **Benefits** 

- l  High voltage response, stable during most of the lifetime of the application 

- l  Wide operating temperature range _(-60°C/+85°C)_ 

- l  Low self-discharge rate _(less than 1 % after 1 year of storage at + 20°C)_ 

- l  Easy integration into compact systems 

- l  Superior resistance to atmospheric corrosion 

## **Key features** 

- l Stainless steel container 

- and end caps _(low magnetic signature)_ 

- l Hermetic glass-to-metal sealing 

- l Non-flammable electrolyte 

- l Underwriters Laboratories _(UL)_ Component Recognition 

- l Compliant with IEC 60086-4 safety standard and IEC 60079-11 intrinsic safety standard 

- l Restricted for transport (Class 9) 

## **Main applications** 

l Utility metering 

- l Automatic meter readers 

- l Buoys 

- l Measuring equipment 

## **Cell size references** 

## **C** 

## **Electrical characteristics** 

_(typical values relative to cells stored for one year or less at + 30°C max.)_ 

|Nominal capacity||7.7 Ah|
|---|---|---|
|_(at 4 mA + 20_°_C 2.0 V cut-off. The capacity restored by the cell varies_|||
|_according to current drain, temperature and cut-off)_|||
|Open circuit voltage|(at +20°C)|3.67 V|
|Nominal voltage|(at 0.5 mA + 20°C)|3.6 V|
|Nominal energy||27.72 Wh|



## Pulse capability: Typically up to 300 mA 

_(300 mA/0.1 second pulses, drained every 2 mn at +20°C from undischarged cells with 10 µA base current, yield voltage readings above 3.0 V. The readings may vary according to the pulse characteristics, the temperature, and the cell’s previous history. Fitting the cell with a capacitor may be recommended in severe conditions. Consult Saft)_ 

|Maximum recommended continuous current|||150 mA|
|---|---|---|---|
|_(Higher currents possible, consult Saft)_||||
|Storage<br>_(recommended)_||+30°C (+86°F) max||
|_(for more severe conditions, consult Saft)_||||
|Operating temperature range||- 60°C/+85°C||
|_(Operation above ambient T may lead to reduced capacity and_||(- 76°F/+185°F)|(- 76°F/+185°F)|
|_lower voltage readings at the beginning of pulses. Consult Saft)_||||
|**Physical characteristics**||||
|Diameter (max)||26.0 mm (1.02 in)||
|Height (max)||49.1 mm or 50.4 mm||
|||(1.93 in or 1.98 in)||
|||depending on finish type||
|Typical weight|||48 g (1.7 oz)|
|Li metal content|||approx. 2.0 g|
|Available termination suffix||||
|CNR|radial tabs|||
|3 PF, 3 PF RP|radial pins|||
|CNA (AX)|axial leads|||
|FL|flying leads..._etc._|||



- l Industrial applications 

- l Professional electronics 

## **Optional upon request** 

l Low magnetic version 

May 2010 

## LS 26500 

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Voltage plateau versus Current and Temperature (at mid-discharge)<br>**----- End of picture text -----**<br>


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3.6<br>3.5<br>Ø 25.8 ± 0.2 ee + 70ºC<br>3.4<br>Ø 6.0 ± 0.1<br>(on flat surface) 3.3<br>| 3.2 ee ee + 20ºC<br>lie, | hh, eR |<br>3.1<br>a aPf TT NAPSSEs PTT|<br>2.0 ± 0.2 3.0 ee |<br>2.9 enNG<br>2.8<br>49.8 ± 0.6 Pt LTT ENN ANTE - 20ºC EEE<br>2.7<br>2.6 eea - 40ºC eee|<br>0.4 0.1 1 10 100 1000<br>! a Current (mA)<br>po e<br>Ø 18.0 ± 0.2<br>(on flat surface)<br>Typical discharge profiles at + 20°C<br>Finished version with<br>protruding positive end cap 3.9 UN, ETE, TEI, ETE EEE, ETT<br>Ø 25.8 ± 0.2± 0.2 0.2 3.7<br>IWAN ET I EI | |TTITTT<br>Ø 13.4 ± 0.2± 0.2 0.2 3.5<br>(on flat surface)<br>| | 3.3 A<br>| NTT TI TTT<br>aff 3.12.9 Aa a ee | allll<br>0.8 ± 0.2± 0.2 0.2 2.7 aee a ee a ee<br>2.5<br>48.7 ± 0.5± 0.5 0.5 2.3 AAE EI IEEIT<br>2.1 UE EI TE EIT<br>0.4 1.9 PUG ETE UE ETEE<br>!a 0.01 0.1 1 10 Time (hours) 100 1000 10000 100000<br>Cell voltage (V)<br>Cell voltage (V)<br>25 Ohms/125 mA 75 Ohms/35 mA 250 Ohms/14 mA 5000 Ohms/0.7 mA<br>**----- End of picture text -----**<br>


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Ø 25.8 ± 0.2± 0.2 0.2<br>Ø 13.4 ± 0.2± 0.2 0.2<br>(on flat surface)<br>|<br>|<br>aff<br>0.8 ± 0.2± 0.2 0.2<br>48.7 ± 0.5± 0.5 0.5<br>0.4<br>{i<br>Ø 18.0 ± 0.2<br>(on flat surface)<br>**----- End of picture text -----**<br>


**Finished version with flat positive end cap** 

## **Restored Capacity versus Current and Temperature (2.0 V cut-off)** 

Dimensions in mm. 

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7.0 pT |TLE<br>6.0 a ee SNE eee<br>pe EO NNN + 70ºC<br>5.0 PTa eeNN<br>4.0 poe ee + 20ºC  eee<br>PTT NTN TTT<br>3.0 PTYANN| | PRR NNTST<br>a ee ee ee eeeee - 20ºC<br>2.0 PTTa a eeEE ee ee - 40ºC  ee<br>1.0 a eei<br>1 10 100 1000<br>Current (mA)<br>Capacity (Ah)<br>**----- End of picture text -----**<br>


## **Storage** 

- l The storage area should be clean, cool _(preferably not exceeding + 30°C),_ dry and ventilated. 

## **Warning** 

- l Fire, explosion and severe burn hazard. 

- l Do not recharge, short circuit, crush, disassemble, heat above 100°C _(212°F),_ incinerate, or expose contents to water. 

- l Do not solder directly to the cell _(use tabbed cell versions instead)._ 

## **Saft** 

**Specialty Battery Group** 12, rue Sadi Carnot 

93170 Bagnolet - France Tel.: +33 (0)1 49 93 19 18 Fax: +33 (0)1 49 93 19 69 

## **www.saftbatteries.com** 

## Doc. N[o] 31016-2-0510 

Information in this document is subject to change without notice and becomes contractual only after written confirmation by Saft. For more details on primary lithium technologies please refer to Primary Lithium Batteries Selector Guide Doc No 31048-2. Photo credit: Saft Société anonyme au capital de 31 944 000 e RCS Bobigny B 383 703 873 Produced by Arthur Associates Limited.