Saft LS26500 Lithium Battery C 7.7 Ah 3.6 V Li-SOCl2 Cylindrical Cell

Saft LS26500 lithium battery is a Li-SOCl₂ cylindrical cell designed for high-energy, long-lasting, and reliable performance in industrial and electronic applications with ultra-low self-discharge.

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Lithium Battery Information Sheet

Saft LS26500 Spec Sheet

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Product Overview

The Saft LS26500 is a high‑energy 3.6V Lithium Thionyl Chloride (Li‑SOCl₂) primary cell designed for long‑duration, low‑drain, and moderate‑pulse applications that require exceptional reliability and multi‑year autonomy. As a C‑size member of Saft’s LS‑series, the LS26500 delivers very low self‑discharge, high energy density, and stable voltage, making it a leading choice for industrial IoT, metering, and remote‑monitoring systems where maintenance access is limited.

High‑Energy Li‑SOCl₂ Chemistry

The LS26500 uses Li‑SOCl₂ chemistry, optimized for long‑life, low‑drain operation. Key characteristics include:

• 3.6V nominal output with excellent voltage stability

• High energy density for compact, long‑duration power

• Extremely low self‑discharge, typically <1% per year

• Wide operating temperature range, often −60°C to +85°C

• Long shelf and operational life, frequently exceeding 10–20 years

This chemistry is ideal for autonomous devices that must operate for years without maintenance or battery replacement.

Electrical Performance for Long‑Life, Low‑Drain Systems

The LS26500 is engineered for low continuous currents with the ability to support moderate pulse loads when paired with a capacitor or hybrid layer capacitor (HLC). Performance advantages include:

• Stable 3.6V output for low‑drain electronics

• High energy capacity for multi‑year deployments

• Ability to support moderate pulses with appropriate buffering

• Reliable operation in extreme cold and heat

• Minimal voltage drop during long‑term standby

This makes the LS26500 a dependable choice for systems requiring decade‑long, maintenance‑free operation.

Mechanical and Environmental Durability

The LS26500 is built for harsh industrial and outdoor environments:

• Hermetically sealed stainless‑steel housing for leak‑proof operation

• High resistance to shock, vibration, and mechanical stress

• Wide temperature tolerance for remote or exposed installations

• Integrated safety vent for controlled pressure management

• Long shelf life suitable for extended storage or standby

These features ensure stable performance in mission‑critical or remote deployments.

Typical Applications

The LS26500 is widely used in sectors that require long‑life, low‑drain power with occasional pulse demands:

• Utility metering (gas, water, heat meters)

• Industrial IoT sensors and wireless modules

• Smart city infrastructure and environmental monitoring

• Asset tracking and geolocation beacons

• Oil & gas instrumentation and pipeline monitoring

• Security and intrusion detection systems

• SCADA nodes and remote telemetry

• Memory backup and RTC power

These systems benefit from the LS26500’s ability to deliver years or decades of stable performance.

Why Engineers Choose the LS26500

• Ultra‑long‑life Li‑SOCl₂ chemistry with extremely low self‑discharge

• High energy density in a compact C‑size format

• Stable 3.6V output for low‑drain electronics

• Excellent temperature resilience for outdoor and industrial use

• Rugged stainless‑steel construction for harsh environments

• Maintenance‑free operation for sealed or remote systems

The LS26500 is often selected when designers need a high‑energy, long‑life primary lithium cell capable of powering autonomous devices for many years.

Product Description