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