Saft LSP17500-20F Hybrid Primary Battery A-size 3.6 Ah 3.6 V Li-SOCl2

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Lithium Battery Information Sheet

Saft LSP17500-20F Spec Sheet

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Product Overview

The Saft LSP17500‑20F is a compact, high‑energy Lithium Thionyl Chloride (Li‑SOCl₂) primary cell engineered for industrial, metering, and IoT applications that require exceptionally long service life, ultra‑low self‑discharge, and a stable 3.6V output. As part of Saft’s LSP (Low Self‑Discharge Spiral) series, the LSP17500‑20F delivers a powerful combination of high capacity, excellent pulse performance, and rugged environmental durability, making it ideal for remote, sealed, or mission‑critical systems where battery replacement is difficult or impossible.

Chemistry and Performance Profile

The LSP17500‑20F uses Li‑SOCl₂ chemistry, optimized for applications requiring very long operating life and high energy density. This chemistry provides:

• Ultra‑low self‑discharge, typically <1% per year, enabling multi‑decade operation

• High energy density for compact device designs

• Stable 3.6V output across most of the discharge curve

• Excellent performance in long‑duration standby applications

• Strong pulse capability when paired with a capacitor or hybrid layer cell

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

• Outstanding storage life, often 10–20+ years

This makes the LSP17500‑20F ideal for devices that must operate unattended for long periods.

Key Technical Characteristics

The Saft LSP17500‑20F is engineered for long‑term reliability in industrial and IoT systems:

• High capacity for extended multi‑year deployments

• Spiral construction for improved pulse performance

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

• High safety margin with non‑pressurized design

• Excellent resistance to shock, vibration, and corrosion

• Long shelf life with minimal voltage drop during storage

These characteristics support both low‑drain continuous operation and intermittent high‑drain events, depending on system design.

Common Applications for the Saft LSP17500‑20F

The LSP17500‑20F is widely used in long‑life industrial and IoT applications where battery replacement is difficult or impossible:

• Utility metering (AMR/AMI)

• Smart gas and water meters

• Industrial IoT sensors and wireless modules

• Pipeline monitoring and oil & gas instrumentation

• Remote environmental and agricultural sensors

• Asset tracking and geolocation systems

• Security and intrusion detection devices

• Military and aerospace electronics

These applications benefit from the LSP17500‑20F’s ability to deliver stable voltage and extremely long service life.

Why Engineers and OEMs Choose the LSP17500‑20F

• Ultra‑long operating life for 10–20+ year deployments

• High energy density for compact device designs

• Stable 3.6V output for sensitive electronics

• Low self‑discharge ideal for long‑term standby

• Wide temperature tolerance for harsh industrial environments

• Proven reliability in mission‑critical systems

• Maintenance‑free operation for sealed or remote devices

The LSP17500‑20F is often selected when designers need a high‑energy, long‑life Li‑SOCl₂ power source that can operate reliably for a decade or more without maintenance.

Product Description