EVE ER17505 3.6V 3600mAh Li-SOCl2 Lithium Thionyl Chloride Battery

The EVE ER17505 is a 3.6V 3600mAh primary lithium thionyl chloride (Li-SOCl2) battery designed for smart meters and IoT applications. With a 10-year storage life, ultra-low self-discharge rate, and wide operating temperature range (-55°C to +85°C), it delivers reliable long-term power for smart water meters, gas meters, industrial instruments, and data transmission equipment.

EVE ER17505 — 3.6V 3600mAh Lithium Thionyl Chloride Battery

The EVE ER17505 is a high-performance primary lithium thionyl chloride (Li-SOCl2) battery engineered for demanding long-life applications. With a nominal voltage of 3.6V and a capacity of 3600mAh, it is purpose-built for smart metering and IoT infrastructure where reliability over many years is critical. No charging is required — simply install and use, making it safe and convenient while eliminating risks such as overcharging and overheating.

Key Features

  • High and stable operating voltage — consistent 3.6V output throughout the battery’s life
  • High energy density — 3600mAh in a compact 17.5 × 51.0 mm cylindrical form factor
  • Ultra-low self-discharge rate — ≤1% per year, ideal for long-term deployment
  • Wide operating temperature range — -55°C to +85°C, suitable for harsh environments
  • 10-year natural storage life — minimal maintenance, long-term reliability
  • Excellent sealing performance — prevents leakage in field conditions
  • Internal passivation film — built-in safety protection mechanism
  • No heavy metals — environmentally responsible design

Technical Specifications

ParameterSpecification
ModèleER17505
Tension nominale3,6 V
Capacité nominale3600 mAh
Max. Continuous Discharge Current100 mA
Max. Pulse Discharge Current180mA
Poids26g
Self-Discharge Rate≤1% per year
Storage Life10 years
Storage Temperature-20°C ~ +25°C
Operating Temperature-55°C ~ +85°C
Dimensions17.5 × 51.0 mm
ChemistryLithium Thionyl Chloride (Li-SOCl2)
TypePrimary (non-rechargeable)

EVE Li-SOCl2 Battery Series Comparison

Modèle Capacity (mAh) Tension (V) Max Continuous Current (mA) Max Pulse Current (mA) Weights (g) Operation Temperature (°C) Sizes (mm)
ER14250 1200 3.6 35 50 10 -55~+85°C 14.5×25.4
ER14335 1650 3.6 35 75 12 -55~+85°C 14.5×33.5
ER14505 2700 3.6 60 150 19 -55~+85°C 14.5×50.5
ER17505 3600 3.6 100 180 26 -55~+85°C 17.5×51.0
ER18505 4000 3.6 130 180 28 -55~+85°C 18.7×50.5
ER26500 8500 3.6 150 200 52 -55~+85°C 26.2×50.0
ER34615 19000 3.6 230 300 100 -55~+85°C 33.1×61.5
EF651615 400 3.6 5 20 5 -55~+85°C 16.85×15.8×7.0
EF651625 750 3.6 10 30 8 -55~+85°C 16.85×25.8×7.0
ER2450T 550 3.6 5 20 9 -55~+125°C 24.3×6.2

*Note: The above data comes from EVE’s laboratory.

Applications

The ER17505 is widely used across smart infrastructure and industrial sectors:

  • Smart electricity meters
  • Smart water meters
  • Smart gas meters
  • Industrial instruments and sensors
  • Data acquisition and transmission equipment
  • Security monitoring equipment
  • Medical instruments

About EVE Energy

EVE Energy is a globally recognized manufacturer of primary and secondary lithium batteries, trusted across IoT, smart metering, industrial, and consumer electronics applications. The ER17505 is part of EVE’s comprehensive Li-SOCl2 battery series, certified to international standards for quality and safety.

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