Cell Type ML621
Specifications
Nominal Capacity*1
5.5mAh
3V
Nominal Voltage
Standard Charge/Discharge Current
0.015mA
Continuous*2
0.5mA
Max. Discharge Current
Pulse*3
1.5mA
3000
300
3.1±0.15V
2.95±0.15V
Discharging Depth of 5%
Discharging Depth of 20%
Constant Voltage Charge
Hight Temperature
Charge/Discharge Cycle Characteristics
Charging Method
Temperature Range
Weight
-20
℃～
60
℃
0.22g
6.8mm
2.1mm
D
Diameter(D)
Height(H)
Dimensions
Nominal capacity is determined to an end voltage of 2.0V when the battery is allowed to
discharge at a standard current level at 23oC.
*1
Current value is determined so that 50% of the nominal capacity is obtained with an end
voltage of 2.0V at 23 oC.
*2
*3
Current value for obtaining 2.0V cell voltage when 15sec. pulse is applied at 50%
discharge depth at 23 oC.
Typical Characteristics
Temperature Characteristics of ML621
Charge Characteristics of ML621
3.5
3.0
2.5
2.0
1.5
1.0
3.5
6.0
5.0
4.0
3.0
2.0
1.0
0
Charging Voltage : 3.0V
Load : 150kohm
3.0
2.5
2.0
1.5
1.0
0.5
Cell Voltage
60oC
1kohm
Charge circuit
3.0V
Temp.:23oC
23oC
oC
-20
Charge Capacity
ML621
discharged cell to 2.0V
0
50
100
150
200
250
300
350
400
0
10
20
30
40
50
Duration(hour)
Duration(hour)
Discharge Characteristics after Continuous Charge of ML621
Discharge Characteristics After Storage of ML621
3.5
3.5
Discharge Condition
Load: 150kohm
Load:150kohm
oC
Temp.:23
oC
Temp.: 23
3.0
2.5
3.0
2.5
2.0
Initial (3.0V charged)
2.0
1.5
1.0
after 60days continuous charged 3.0V at 60 oC
Initial(3.0V charged)
after 20days storage at 60oC
1.5
1.0
0
50
100
150
200
250
300
350
400
0
50
100
150
200
250
300
350
400
Duration(hour)
Duration(hour)
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