Tadiran TL-6937 Lithium Battery DD 35 Ah 3.9V iXtra Cylindrical Cell

Tadiran Disposal Guide for Lithium Batteries

Lithium Battery Information Sheet

Tadiran TL-6937 Spec Sheet

Product Overview

The Tadiran TL‑6937 is a 3.6V Lithium Thionyl Chloride (LiSOCl₂) non‑rechargeable primary cell engineered for high‑energy, long‑duration industrial applications that require exceptional reliability, stable voltage, and multi‑decade operating life. As part of Tadiran’s high‑capacity TL‑69xx bobbin‑type family, the TL‑6937 delivers very low self‑discharge, excellent temperature resilience, and robust mechanical durability, making it ideal for remote, mission‑critical, and maintenance‑restricted deployments.

High‑Energy LiSOCl₂ Chemistry for Extended Service Life

The TL‑6937 leverages Tadiran’s bobbin‑type LiSOCl₂ chemistry, optimized for long‑term, low‑drain operation. Key performance characteristics include:

• 3.6V nominal voltage with a stable, flat discharge curve

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

• High energy density, supporting long‑life system designs

• Wide operating temperature range, often −55°C to +85°C

• 10–20+ year service life, depending on load profile and environment

This chemistry is ideal for devices that must operate reliably for years without battery replacement.

Electrical Performance for Low‑Drain Industrial Systems

The TL‑6937 is optimized for low continuous currents, making it well‑suited for long‑duration monitoring, metering, and sensing applications. Electrical advantages include:

• Stable 3.6V output for low‑power electronics

• Predictable, linear discharge characteristics

• Minimal voltage drop during long‑term standby

• High energy capacity for multi‑year deployments

• Reliable operation in extreme environmental conditions

This performance profile supports decade‑long, maintenance‑free operation in sealed or remote systems.

Mechanical and Environmental Durability

The TL‑6937 is engineered for rugged industrial and outdoor environments:

• Hermetically sealed stainless‑steel housing

• High resistance to shock, vibration, and mechanical stress

• Excellent performance in extreme cold and heat

• Long shelf life suitable for extended storage

• Proven reliability in remote or inaccessible installations

Its construction ensures stable, long‑term operation in mission‑critical applications.

Typical Applications

The TL‑6937 is widely used in systems requiring long‑life, low‑drain primary power, including:

• Utility metering (gas, water, heat meters)

• Industrial IoT sensors and wireless modules

• Smart city and environmental monitoring nodes

• Asset tracking and geolocation beacons

• Oil & gas instrumentation and pipeline monitoring

• Security and intrusion detection systems

• SCADA and remote telemetry equipment

• Memory backup and RTC power

These applications rely on the TL‑6937’s ability to deliver years of stable, maintenance‑free performance.

Why Engineers Choose the TL‑6937

• Ultra‑long‑life LiSOCl₂ primary chemistry

• High energy density for extended‑life system designs

• Stable 3.6V output for low‑drain electronics

• Exceptional temperature resilience for harsh environments

• Rugged, maintenance‑free construction

• Proven reliability in industrial, remote, and mission‑critical systems

The TL‑6937 is selected when designers need a high‑reliability, non‑rechargeable lithium cell capable of powering autonomous devices for a decade or more.

Product Description