ER26500 — D-Size Lithium Thionyl Chloride Cell

The ER26500 D-cell provides very high capacity and is used where long-life primary power is required, including security systems, remote telemetry, and industrial instruments.

Key Specifications

  • Nominal voltage: 3.6 V
  • Typical capacity: 19,000 mAh
  • Diameter: 26.2 mm
  • Height: 50.0 mm (note: some variants differ)
  • Operating temperature: -60°C to +85°C
  • Shelf life: 10+ years
Download datasheet (PDF)
ER26500 battery

Applications

ER26500 is ideal for long-term deployments needing high energy — remote monitoring, alarm systems, and other industrial devices where replacing batteries is difficult or costly.

Features

  • Extremely high energy capacity
  • Long shelf life and reliable service life
  • Excellent low-drain performance
  • Good temperature resilience for field deployments

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