Datasheet

* Nominal capacity indicates duration until the voltage drops down to 2.0V when discharged at a nominal discharge current at 20 deg. C.
**Dimensions and weight are for the battery itself, but may vary depending on the shape of terminals or other factors.
Hitachi Maxell, Ltd.
2-18-2, Iidabashi, Chiyoda-ku, Tokyo 102-8521, Japan
http://www.maxell.com
•Data and dimensions are just reference values. For further details,
 please contact us at your nearest Maxell office.
•Contents on this website are subject to change without notice.
Available Terminals and Wire Connectors
 Check
http://www.maxell.co.jp/e/products/industrial/battery/pdf/er3stw_e.pdf for diagrams of
 batteries with terminals.
D ata Sheet
Model ER3S
System Li-Thionyl Chloride/Inorganic Electrolyte
Nominal Voltage (V) 3.6
Nominal Capacity (mAh)* 790
Nominal Discharge Current (eA) 35
Temperature Ranges (deg. C) min. max.
 Operating –55 +85
Weight (g)** 7
Dimensions (mm)**
 Diameter 14.5
 Height 26
UL Recognition MH12568
Characteristics
ER3S
Lithium Thionyl Chloride Battery
● Relationship between Discharge Current and Duration Time
● Storage Characteristics
● Discharge Characteristics
0 800 1600 2400
4.0
3.0
2.0
1.0
0
Discharge current: 400µA Temperature: 20 deg. C
Voltage (V)
(*Equivalent to storage at 20 deg. C for 10 years)
Discharge duration time (h)
Initial
Temperature: 20 deg. C
Discharge duration time (h)
Voltage (V)
1 10 10
2
10
3
10
4
10
5
4.0
3.0
2.0
Temperature: –40 deg. C
Discharge duration time (h)
Voltage (V)
1 10 10
2
10
3
10
4
10
5
4.0
3.0
2.0
Temperature: 60 deg. C
Discharge duration time (h)
Voltage (V)
1 10 10
2
10
3
10
4
10
5
4.0
3.0
2.0
100,000
70,000
50,000
20,000
10,000
7,000
2,000
1,000
5,000
108 30 50 70 100 200 300 500
60 deg. C 
20 deg. C
Discharge duration time (h)
Discharge current (µA)
10
7
5
4
3
2
1
0.5
Year
Stored for 200 days at 60 deg. C*
400µA 40µA 8µA
400µA 40µA 8µA
400µA 40µA
Date of issue: April, 2007