SAFT M 20 EX SV – 3.0V 12.4Ah D-Size Lithium-Manganese Dioxide Battery
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SAFT M 20 EX SV 3.0V 12.4Ah Lithium-Manganese Dioxide Battery is a high-performance D-size primary Li-MnO₂ spiral cell designed for demanding industrial and hazardous-area applications. It provides 12.4Ah capacity, 3.5A recommended continuous current and up to 8A pulse current, with an operating range of approximately -40°C to +72°C. ATEX and IECEx certified, it is suitable for smart gas meters, oil and gas monitoring, gas leak detection, mining, petrochemical equipment, tracking, M2M communication and other applications operating in potentially explosive environments.
SAFT M 20 EX SV – 3.0V 12.4Ah D-Size Lithium-Manganese Dioxide Battery
Product Specifications
| Allowable Storage Temperature | -55°C to +90°C |
|---|---|
| ATEX Certification | ATEX certified for potentially explosive atmospheres |
| Battery Chemistry | Lithium-Manganese Dioxide (Li-MnO₂) |
| Battery Type | Non-rechargeable primary lithium battery |
| Capacity Test Condition | 150 mA at +20°C to 2.0 V cut-off |
| Cell Configuration | 1S1P |
| Cell Construction | Spiral |
| Cell Size | D |
| Construction | Stainless steel container |
| Country of Manufacture | Germany |
| Electrolyte | Non-corrosive electrolyte |
| Ex Marking | II 2G |
| IECEx Certification | IECEx certified |
| Internal Pressure | Non-pressurized at room temperature |
| Key Advantage | High drain capability; high pulse capability; stable voltage response; high energy density; low self-discharge; superior corrosion resistance; low magnetic signature |
| Lithium Metal Content | Approximately 3.5 g |
| Manufacturer | SAFT |
| Maximum Height | 61.5 mm |
| Maximum Outside Diameter | 34.2 mm |
| Maximum Recommended Continuous Current | 3.5 A |
| Model | M 20 EX SV |
| Nominal Capacity | 12.4 Ah |
| Nominal Energy | 35 Wh |
| Nominal Voltage | 3.0 V |
| Open Circuit Voltage | 3.2 V |
| Operating Temperature | -40°C to +72°C |
| Primary Applications | Smart gas meters; gas and oil tank level monitoring; leak detectors; portable gas detectors; petrochemical facilities; mining applications |
| Product Name | SAFT M 20 EX SV Lithium Battery |
| Product Series | SAFT M EX SV |
| Product Type | Primary Lithium-Manganese Dioxide (Li-MnO₂) Battery |
| Pulse Capability | Up to 8 A |
| Recommended Storage Temperature | +30°C maximum |
| Safety Feature | Integrated safety vent |
| Safety Standards | IEC 60079-0; IEC 60079-11; UL 1642; IEC 60086-4 |
| Sealing | Hermetic glass-to-metal seal |
| Self Discharge | Less than 1% after 1 year at 20°C |
| Temperature Class | T4 |
| Terminal Configuration | Standard terminals |
| Transport Classification | UN 3090 and UN 3091; Class 9 |
| Typical Weight | 115 g |
SAFT M 20 EX SV – 3.0V 12.4Ah D-Size Lithium-Manganese Dioxide Battery
The SAFT M 20 EX SV is a high-performance 3.0V primary Lithium-Manganese Dioxide (Li-MnO₂) battery designed for applications requiring high energy, long operating life, stable voltage and reliable performance in potentially explosive environments. This D-size spiral cell provides a rated capacity of 12.4Ah and is certified for use in hazardous areas under ATEX and IECEx requirements.
The M 20 EX SV is engineered for high-drain and high-pulse applications. It offers a maximum recommended continuous discharge current of 3.5A and a maximum recommended pulse current of 8A, subject to the electrical characteristics and protection requirements of the equipment.
Key Features
- Model: SAFT M 20 EX SV
- Chemistry: Lithium-Manganese Dioxide (Li-MnO₂)
- Battery type: Primary / non-rechargeable
- Nominal voltage: 3.0V
- Open-circuit voltage: approximately 3.2V
- Rated capacity: 12.4Ah / 12,400mAh
- Cell size: D
- Construction: Spiral
- Maximum recommended continuous current: 3.5A
- Maximum recommended pulse current: 8A
- Maximum diameter: approximately 34.2mm
- Maximum height: approximately 61.5mm
- Typical weight: approximately 115g
- Operating temperature: approximately -40°C to +72°C
- Allowable storage temperature: approximately -55°C to +90°C
- Low self-discharge: less than 1% after one year at +20°C
- Hermetic glass-to-metal sealing
- Stainless-steel container
- Integrated safety vent
- Non-corrosive electrolyte
- Non-pressurized at room temperature
- Low magnetic signature
ATEX and IECEx Certified
One of the key advantages of the M 20 EX SV is its certification for potentially explosive atmospheres. SAFT specifies certification according to IEC 60079-0 and IEC 60079-11, with ATEX Ex II 2G classification and IECEx certification. The cell is designed for integration into equipment requiring intrinsically safe battery technology.
The SAFT documentation identifies the M 20 EX SV with ATEX certificate BVS 12 ATEX E 026 U and IECEx certificate IECEx BVS 15.0121 U.
Important: Certification applies to the cell/component under the specified conditions. A customized battery pack made using M 20 EX SV cells is not automatically ATEX/IECEx certified; the complete assembly must meet the applicable requirements.
High-Drain and High-Pulse Performance
The M 20 EX SV is designed for equipment that requires both sustained current and short-duration high-current pulses. SAFT specifies a maximum recommended continuous current of 3.5A and a maximum recommended pulse current of 8A. Actual permissible current can depend on the equipment design, temperature, pulse duration, frequency and required protection level.
Its spiral construction provides a high active-material surface area, supporting strong current delivery and stable voltage response throughout much of the battery’s operating life.
Long Operating Life
The M 20 EX SV has a low self-discharge rate of less than 1% after one year at +20°C, supporting long service life in equipment that may remain operational or dormant for extended periods. SAFT specifies an operating range of approximately -40°C to +72°C.
The cell’s hermetic construction, stainless-steel container, integrated safety vent and non-corrosive electrolyte are designed for reliable operation in demanding industrial environments.
Typical Applications
The SAFT M 20 EX SV is suitable for applications such as:
- Smart gas meters
- Oil and gas monitoring equipment
- Gas and oil tank level monitoring
- Gas leak detection systems
- Portable gas detectors
- Petrochemical equipment
- Mining equipment
- Industrial monitoring
- M2M communication systems
- Radio communication equipment
- Tracking systems
- Security and alarm equipment
- Emergency location equipment
- Professional industrial electronics
The M 20 EX SV is particularly relevant to equipment operating in potentially explosive or hazardous environments, where certified battery components are required.
Physical Specifications
The M 20 EX SV is a D-size cylindrical spiral cell, measuring approximately 34.2mm in diameter × 61.5mm in height, with a typical weight of approximately 115g.
Important: The SAFT M 20 EX SV is a primary, non-rechargeable lithium battery. Do not recharge or short-circuit the cell. Before replacing an existing battery, verify the voltage, current profile, physical dimensions, terminal configuration and applicable hazardous-area certification requirements.