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HCB Battery Co., Ltd.
HCB Battery Co., Ltd.

ER17505 Li-SOCl2 Cylindrical Battery

Primary Lithium Battery ER17505

3600 mAh capacity

Wide Temperature Range Long Shelf Life

3.6V Lithium-thionyl chloride [Li-SOCl2] A-size bobbin battery ER17505 Widely used in utilities,medical, stainless steel container, somke detector, water meter, electricity meter, gas meter, heat meter.

Product Details of ER17505 Li-SOCl2 Cylindrical Battery


Place of OriginMade in PRC
Brand NameHCB
CertificationUN/CE/UL
Model NumberER17505 / A size ER battery


Advantage of ER17505 Li-SOCl2 Cylindrical Battery


  • High and Stable Voltage

  • Energy Density up to 590Wh/kg

  • Long Shelf Life (less than 1% per year after 1  year of storage at +25℃)

  • Wide Operating Temperature (-55℃~+85℃)


Specification of ER17505 Li-SOCl2 Cylindrical Battery


Nominal Capacity3600mAh
Battery discharged at continuous current 1.7mA until the voltage reaches cut-off voltage 2.0V at ambient temperature 23±2℃
Nominal Voltage3.6 V
Maximum Continuous Current100mA
Battery with minimum 50% rated capacity discharged at ambient temperature 23±2℃
Maximum Pulse Discharge Current250mA
Battery with minimum 50% rated capacity discharged at max pulse for 3 seconds after 27seconds break. Ambient temperature 23±2℃
Storage Condition

Temperature ≤ 30℃

Humidity ≤ 75%RH

Operating Temperature-55℃ to +85℃
Battery DimensionSee drawing on page
Max Weight24.0g
Self-discharge Rate1%
Max self-discharged rate at ambient temperature 23±2℃
Shelf Life10 years
Ambient temperature 23±2℃


1. Battery Characteristic of ER17505 Li-SOCl2 Cylindrical Battery

  • High Voltage

We offer the nominal voltage of up to 3.6V, the working voltage varies with the load, generally between 3.3V ~ 3.6V.

  • High Energy Density

We provide a specific energy density up to 510Wh/kg.

  • Wide Operating Temperature Range

The battery with strong adaptability to temperature can be in work between -55℃ ~ +85℃.

  • Stable Operating Voltage

Battery voltage is very stable during work, more than 90% of the capacity could be output on a fixed high voltage platform.

  • Long Shelf Life

Under the condition of normal temperature, the battery self-discharge rate of no more than 2% per year.


Battery sealing using the fully sealed structure to reduce the leakage of the battery, make the battery can be stored at room temperature for more than 10 years.


2. Main Applications of ER17505 Li-SOCl2 Cylindrical Battery

  • Medical devices

Cardiac pacemaker, respirator, oxygenator, inspection devices, monitoring devices, infusion pump, etc.

  • IoT devices

Smoke detectors, security alarms, seismometers, locking systems, monitoring systems, etc.

  • Tracking

RFID products, road toll transponder, IC cards, etc.


Drawing of ER17505 Li-SOCl2 Cylindrical Battery

ER17505 Li-SOCl2 Cylindrical Battery/Lithium Thionyl Chloride Cell

ER17505 Li-SOCl2 Cylindrical Battery


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