Description
Saft BA5800A/U 6V Li-SO₂ Battery | Military & Industrial Grade
The Saft BA5800A/U Lithium Sulfur Dioxide Battery is a durable, military-grade 6V power source designed for advanced field electronics and mission-essential equipment.
Built using two LO26SX cells configured in series, the BA5800A/U provides steady voltage output, long service life, and excellent performance across extreme temperature conditions.
With integrated safety components—including a blocking diode, internal fuse, thermal cutoff device, and manual discharge mechanism—this battery delivers reliable, maintenance-free operation in the harshest environments.
Ideal for GPS receivers, detection instruments, and tactical systems requiring dependable primary power.
Specifications
Saft BA5800A/U Specifications
| Chemistry | Lithium Sulfur Dioxide (Li-SO₂) |
| Cell Construction | Assembled from 2 × LO26SX cells in series |
| Typical OCV | 6.0V |
| Nominal Voltage (500 mA) | 5.3V |
| Cut-Off Voltage | 4.0V |
| Typical Capacity (21°C / 70°F at 250 mA) |
7.5Ah |
| Operating Temperature | –40°C to +71°C (–40°F to +160°F) |
| Storage Temperature | Recommended ≤ +35°C (95°F); Possible –40°C to +71°C |
| Typical Weight | 220 g (7.76 oz) |
| Lithium Content | 4.8 g (0.17 oz) |
| Max Diameter | 35.51 mm (1.398 in) |
| Max Height | 128.5 mm (5.059 in) |
| Case Material | Plastic |
| Reference Specification | MIL-PRF-49471B (CR) |
| NSN | 6135-01-440-7774 |
| 6135-99-798-9851 | |
| 6135-99-798-9851 | |
| 6665-99-760-9742 |
About the BA5800A/U
Engineered for reliability under real-world conditions, the Saft BA5800A/U is a 6-volt primary Li-SO₂ (Lithium Sulfur Dioxide) battery widely used in defense, security, and industrial field applications. The battery’s construction—featuring two LO26SX lithium cells assembled in series—ensures efficient energy delivery and stable voltage even under heavy load.
The BA5800A/U incorporates a full suite of internal protection devices that enhance operational safety and reduce risk during storage and use. These include a non-replaceable fuse, a thermal cutoff (TCO), a one-way blocking diode that prevents charging attempts, and a manual battery-discharge switch designed for safe end-of-life handling.
With a typical capacity of 7.5Ah and exceptional performance from –40°C to +71°C, this battery is trusted for mission sets requiring endurance, temperature resilience, and long shelf life. Common deployments include handheld GPS receivers, chemical detection units, and other equipment used in tactical and emergency response environments.
Features and Benefits
- Built using proven LO26SX lithium cell technology
- Integrated fuse provides enhanced circuit protection
- Thermal cutoff device guards against overheating
- Blocking diode prevents unintended charging
- Manual discharge function allows safe battery neutralization
- Operates dependably in extreme hot and cold environments
- Long storage life with excellent stability
- Manufactured in the USA
Applications
Primary Equipment Compatibility:
- AN/PSN-11 GPS Units
- AN/PSN-10(V) GPS Systems
- Chemical Agent Monitoring Devices
- Portable military and industrial field equipment
Compatible / Replacement Part Numbers:
- BA5800A/U
- NSN 6135-01-440-7774
- LO26SX-series battery assemblies
- Equivalent 6V Li-SO₂ military batteries
