Primary lithium batteries
G 26
3.0 V Primary lithium-sulfur dioxide (Li-SO2)
High drain capability
D - size spiral cell
• High and stable discharge voltage
• High pulse capability
• Performance not affected by cell
• Long storage possible before use
• Ability to withstand extreme
Key features
• Low self-discharge rate
(less than 3% after 1 year of
storage at + 20ºC)
• Hermetic glass-to-metal sealing
• Built-in safety vent
(at the negative end of the cell)
• Restricted for transport (class 9)
• Meets shock, vibration and other
environmental requirements of
military specifications
• Made in UK
Main applications
• Radiocommunications and other
military applications
Beacons and Emergency Location
Life jacket lights
Professional electronics
October 2005
Cell size reference
R20 - D
Electrical characteristics
(typical values relative to cells stored for one year or less at + 30 °C max.)
Nominal capacity
(at 0.25 A + 20°C 2.0 V cut off. The capacity restored by the cell varies
according to current drain, temperature and cut off).
7.75 Ah
Open circuit voltage (at + 20°C)
3.0 V
Nominal voltage
2.8 V
(at 0.5 A + 20°C)
Maximum recommended continuous current
(to avoid over-heating)
2.5 A
Pulse capability: Typically up to 5 A.
(The voltage 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)
(possible without leakage)
+ 30°C (+ 86°F) max
+ 85°C (+ 185°F) max
Operating temperature range
(Operation above ambient T may lead to reduced capacity and lower
voltage readings at the beginning of pulses. Consult Saft)
- 60°C/+ 70°C
(- 76°F/+158°F)
Physical characteristics
Diameter (max)
34.5 mm (1.36 in)
Height (max)
59.8 mm (2.35 in)
Typical weight
85 g (3 oz)
Li metal content
Standard cell comes with protruding positive end-cap.
Finish with tabs available on request.
2.4 g
Cell voltage (V)
G 26
59.3 ± 0.5
Temperature (°C)
Ø 34.2 ± 0.3
Cell voltage (V)
Voltage at mid-discharge versus Current and Temperature (2.0 V cut-off)
Overall dimensions in mm
Time (hours)
Typical discharge profiles at +20ºC
Handling precautions
• Cell is pressurised.
• Do not obstruct the safety vent
• Do not short circuit or charge.
Capacity (Ah)
• Do not puncture, open
or mutilate.
• Do not expose to fire
or temperatures above + 70°C
Temperature (°C)
Capacity versus Current and Temperature (continuous discharges 2.0 V cut-off)
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
River Drive, South Shields
Tyne and Wear, NE33 2TR - UK
Tel +44 (0)191 456 1451
Fax +44 (0)191 456 6383
Doc. N° 31058-2-1005
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 N° 31048-2.
Published by the Communications Department.
Photo credit: Saft.
Société anonyme au capital de 31 944 000
RCS Bobigny B 383 703 873
Produced by Arthur Associates.