Sanyo ML1220 User Manual
D
d
Typical Characteristics
Charge Characteristics of ML1220
3.5
3.0
2.5
Cell Voltage
Cell Type ML1220
Specifications
Nom inal Capacity
Nominal Voltage
Standard Charge/Discharge Current
Max. Discharge Current
Charge/Dis charge Cycle Characteristics
Charging Method
Temperature Range
Weight
H
Dimensions
Nominal capacity is determined to an end voltage of 2.0V when the battery is allowed to
*1
discharge at a standard current level at 23
Current value is determined so that 50% of the nominal capacity is obtained with an end
*2
voltage of 2.0V at 23
Current value for obtaining 2.0V cell voltage when 15sec. pulse is applied at 50%
*3
discharge depth at 23
Charge Capacity
20
*1
Continuous
*3
Pulse
Disc harging Depth of 5% 3000
Disc harging Depth of 20% 500
Constant Voltage Charge
Hight Temperature
Diameter(D) 12.5mm
Height(H) 2.0mm
d9.6mm
o
C.
o
C.
o
C.
Charging Voltage vs. Capacity of ML1220
20
Charge Condition(discharged cell to 2.0V)
Load:200hom
o
Temp. : 23
C
Charge Duration : 1month
Discharge Condition
Load : 56kohm
o
Temp : 23
C
End Voltage : 2.0V
15
15mAh
3V
*2
0.1mA
2mA
5mA
3.1±0.15V
2.95±0.15V
-20℃～60
℃
0.8g
2.0
Cell Voltage(V)
1.5
1.0
0 20 40 60
Duration(hour)
Charge circuit
300ohm
3.1V
o
Temp.: 23
C
ML1220
discharged cell to 2.0V
Temperature Characteristics of ML1220
3.5
3.0
2.5
2.0
Cell Voltage(V)
1.5
1.0
0 50 100 150 200 250 300
Duration(hour)
-20oC
23oC
Charge voltage : 3.1V
Load : 27kohm
60oC
Discharge Characteristics after Continuous Charge of ML1220
3.5
3.0
2.5
2.0
Cell Voltage(V)
1.5
Initial(3.25V charged)
after 200days continuous charged 3.25V at 60
o
C
Discharge Condition
Load:56kohm
o
Temp.:23
C
10
Charge Capacity(mAh)
0
10
Discharge Capacity(mAh)
5
2.6
2.8
3.0
3.2
Charging Voltage(V)
Charge/ Discharge Cycle Characteristics of ML1220
10000
5000
1000
500
100
Number of Cycles
50
10
0 50 100
Discharge Depth(%)
Charge : 3.1V + 300ohm
Discharge : 0.5mA
o
C
Temp. : 23
1.0
0 5 10 15 20
Duration(day)
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