SAFT LO 26 SX – 3.0V 7.75Ah D-Size Lithium-Sulfur Dioxide Battery
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SAFT LO 26 SX is a 3.0V 7.75Ah D-size primary Lithium-Sulfur Dioxide (Li-SO₂) battery with spiral-cell construction. It provides high and stable discharge voltage, low self-discharge and high pulse capability of typically up to 5A, with a recommended continuous current of up to 2.5A. It is designed for radiocommunications, military electronics, beacons, emergency location transmitters, sonobuoys and other demanding professional applications.
SAFT LO 26 SX – 3.0V 7.75Ah D-Size Lithium-Sulfur Dioxide Battery
Product Specifications
| Battery Chemistry | Lithium-Sulfur Dioxide (Li-SO₂) |
|---|---|
| Battery Type | Non-rechargeable primary lithium battery |
| Cell Construction | Spiral |
| Cell Size | D |
| Country of Manufacture | USA |
| Diameter | 34.2 mm |
| Environmental Performance | Designed to withstand shock; vibration; and extreme temperature conditions |
| Height | 59.3 mm |
| Key Advantage | High and stable discharge voltage; high pulse capability; low self-discharge; long storage life; wide operating temperature range |
| Manufacturer | SAFT |
| Maximum Recommended Continuous Current | 2.5 A |
| Model | LO 26 SX |
| Nominal Capacity | 7.75 Ah |
| Nominal Energy | 23.25 Wh |
| Nominal Voltage | 3.0 V |
| Nominal Voltage Under Load | 2.8 V at 0.5 A |
| Operating Temperature | -60°C to +70°C |
| Primary Applications | Radiocommunications; military equipment; beacons; emergency location transmitters; sonobuoys; missiles |
| Product Name | SAFT LO 26 SX Lithium Battery |
| Product Series | SAFT LO Series |
| Product Type | Primary Lithium-Sulfur Dioxide (Li-SO₂) Battery |
| Pulse Capability | Typically up to 5 A |
| Recommended Storage Temperature | +30°C maximum |
| Safety Feature | Built-in safety vent at the negative end |
| Sealing | Hermetic glass-to-metal sealing |
| Self-Discharge | Less than 3% after 1 year at +20°C |
| Short Excursion Temperature | Up to +85°C at currents below 1 A |
| Tab Thickness | 0.15 mm |
| Terminal Configuration | Two radial nickel tabs |
| Transport Classification | Class 9 |
| Typical Weight | 85 g |
| UL Recognition | UL Component Recognition |
SAFT LO 26 SX – 3.0V 7.75Ah D-Size Lithium-Sulfur Dioxide Battery
The SAFT LO 26 SX is a high-performance 3.0V 7.75Ah primary lithium battery using Lithium-Sulfur Dioxide (Li-SO₂) chemistry. Designed as a D-size spiral cell, it provides high and stable discharge voltage, high pulse capability and reliable performance for demanding professional, industrial and military applications.
The LO 26 SX is engineered for equipment requiring dependable primary power combined with moderate continuous current and intermittent pulse loads. SAFT specifies a 7.75Ah nominal capacity, 3.0V open-circuit voltage and approximately 2.8V nominal voltage under the specified discharge conditions.
Key Features
- Brand: SAFT
- Model: LO 26 SX / LO26SX
- Battery type: Primary / non-rechargeable lithium battery
- Chemistry: Lithium-Sulfur Dioxide (Li-SO₂)
- Open-circuit voltage: 3.0V
- Nominal voltage: 2.8V under specified discharge conditions
- Nominal capacity: 7.75Ah / 7,750mAh
- Cell size: D / R20
- Construction: Spiral cell
- Maximum recommended continuous current: 2.5A
- Typical pulse capability: Up to 5A
- Maximum diameter: approximately 34.2mm
- Maximum height: approximately 59.3mm
- Typical weight: approximately 85g
- Low self-discharge
- High and stable discharge voltage
- High pulse capability
- Long storage capability
- Wide operating temperature range
- Performance not affected by cell orientation
Technical Specifications
| Specification | SAFT LO 26 SX |
|---|---|
| Chemistry | Lithium-Sulfur Dioxide (Li-SO₂) |
| Battery Type | Primary / Non-rechargeable |
| Open-Circuit Voltage | 3.0V |
| Nominal Voltage | 2.8V |
| Nominal Capacity | 7.75Ah |
| Cell Size | D / R20 |
| Construction | Spiral |
| Max. Continuous Current | 2.5A |
| Typical Pulse Current | Up to 5A |
| Diameter | 34.2mm max. |
| Height | 59.3mm max. |
| Typical Weight | 85g |
| Operating Temperature | -60°C to +70°C |
| Storage Temperature | -60°C to +85°C |
The published SAFT specification gives the 7.75Ah capacity at a 0.25A discharge at +20°C with a 2.0V cutoff. Actual available capacity varies according to current drain, temperature and cutoff voltage.
High-Drain Lithium-Sulfur Dioxide Technology
The LO 26 SX uses spiral-cell construction to provide a large active electrode surface and good high-drain performance. SAFT highlights high and stable discharge voltage, high pulse capability, long storage capability and the ability to withstand extreme temperatures.
The battery has a low self-discharge rate of less than 3% after one year of storage at +20°C. Its construction includes hermetic glass-to-metal sealing and a built-in safety vent. SAFT documentation also identifies the cell for demanding environmental and military-specification requirements.
Typical Applications
The SAFT LO 26 SX is suitable for applications requiring high-drain primary lithium power, including:
- Military and defense electronics
- Radio communication equipment
- Radiocommunication systems
- Beacons
- Emergency location transmitters
- Sonobuoys
- Tracking and telemetry equipment
- Remote monitoring equipment
- Industrial electronics
- Professional instrumentation
- Specialized electronic equipment
SAFT specifically lists radiocommunications, military applications, beacons, emergency location transmitters, sonobuoys and missiles among the main applications for the LO 26 SX.
LO 26 SX vs LO 26 SHX
The LO 26 SX should not be confused with the LO 26 SHX. Both are D-size 3V Li-SO₂ spiral cells, but their electrical characteristics differ:
| Specification | LO 26 SX | LO 26 SHX |
|---|---|---|
| Capacity | 7.75Ah | 7.5Ah |
| Max. recommended continuous current | 2.5A | 4A |
| Typical pulse capability | 5A | 15A |
| Chemistry | Li-SO₂ | Li-SO₂ |
| Size | D | D |
The LO 26 SHX is the higher-current version, while the LO 26 SX is specified for lower continuous and pulse current requirements.
Important: The SAFT LO 26 SX is a primary, non-rechargeable lithium battery and must not be recharged. Always verify the equipment’s voltage, current profile, dimensions and terminal configuration before installation.