ER18505: A Size Bobbin Cell
Technical Datasheet
Technical Specifications
Features
• High and stable operating voltage
• Higher power and higher energy for the
whole battery life
• Superior drain capability
• Higher power applications
• Low self-discharge rate (less than 1% after
1 year of storage at +20°C)
• Battery life higher than 10 years,
depending on the application
• Hermetic glass-to-metal sealing
• Avoid leakage, key for a higher than
10 year battery life
• Non-flammable electrolyte
• Safer operation in case of abuse
Part No.
ER18505 (UHE-ER18505)
Cell Type
Primary, non-rechargeable
Chemistry
Lithium Thionyl Chloride
Voltage Range
2.0V to 3.7V
Nominal Voltage
3.6V
Nominal Capacity
4.0Ah @ 1mA to 2.0V @ 23°C
Max. Continuous Discharge Current
100mA
Max. Pulse Discharge Current
Up to 200mA
Weight
32g
Operating Temperature
-55°C to 85°C
Storage Temperature
-55°C to 85°C (max 30°C for a >5 years life)
Exterior/Housing
Stainless steel container
Terminals/Connector
Radial tabs / radial pins / axial leads / flying leads
Transportation
A complete description of transportation
regulations, lithium weights and transportation
classifications is available on the Ultralife website.
Quality Assurance
Ultralife manufacturing facilities are ISO 9001:2008
and ISO 14001:2004 registered. Its products
are listed under the Component Recognition
Program of Underwriters Laboratories (UL) and
have passed UN transportation testing, which
is required for international transportation of all
lithium batteries.
Typical Applications
• Military and other radio applications
• Alarm and security systems
• Beacons and emergency location
transmitters
• GPS
• Metering systems
• Sonobuoys
• LED lighting applications
ER18505
Newark, New York | 315-332-7100 | Fax: 315-331-7800
©2015 Ultralife Corporation • www.ultralifecorp.com • All information is subject to change without notice.
The information contained herein is for reference only and does not constitute a warranty of performance. • 09 JUL 15 UBM-0063 Rev: A
Dimensions
Typical Performance Graphs
Constant Load Discharge Voltage versus Discharge Time at 25°C
ER18505
Voltage versus Temperature at Different Discharge Currents
ER18505
4.0
3.8
3.8
3.7
Discharge Voltage (V)
3.6
3.4
3.2
3.0
33Ω-100mA-1.6Ah-16h
2.8
100Ω-33mA-2.5Ah-76h
2.6
330Ω-10mA-2.8Ah-280h
3.5kΩ-1mA-4.0Ah-4000h
2.4
3.5
3.4
10µA
3.3
0.2mA
1mA
3.2
100mA
3.1
3.0
2.9
18kΩ-0.2mA-3.2Ah-16000h
2.2
High and flat voltage at high and low drain
Temperature (°C)
High voltage at high drain even at -30°C
ER18505
Newark, New York | 315-332-7100 | Fax: 315-331-7800
©2015 Ultralife Corporation • www.ultralifecorp.com • All information is subject to change without notice.
The information contained herein is for reference only and does not constitute a warranty of performance. • 09 JUL 15 UBM-0063 Rev: A
80
60
40
20
0
-20
-40
100000
10000
1000
100
10
Discharge Time (h)
-60
2.8
2.0
1
Discharge Voltage (V)
3.6
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