Cell Type ML421
Specifications
D
H
Typical Characteristics
Charging Voltage vs. Capacity of ML421
Nominal Capacity*1 |
| 2.3mAh | |
Nominal Voltage |
| 3V | |
Standard Charge/Discharge Current | Continuous*2 | 0.005mA | |
Max. Discharge Current | 0.2mA | ||
Pulse*3 | 0.6mA | ||
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Charge/Discharge Cycle Characteristics | Discharging Depth of 5% | 3000 | |
Discharging Depth of 20% | 300 | ||
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Charging Method | Constant Voltage Charge | 3.1±0.15V | |
Hight Temperature | 2.95±0.15V | ||
Temperature Range | |||
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Weight |
| 0.1g | |
Dimensions | Diameter(D) | 4.8mm | |
Height(H) | 2.1mm | ||
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*1 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.
*2 Current value is determined so that 50% of the nominal capacity is obtained with an end voltage of 2.0V at 23 oC.
*3 Current value for obtaining 2.0V cell voltage when 15sec. pulse is applied at 50% discharge depth at 23 oC.
Temperature Characteristics of ML421
Discharge Capacity(mAh)
2.5
2.0
1.5
1.0
0.5
0
Charging Conditon(discharged cell to 2.0V)
Load:3kohmC
Temp.: 23 o
Charging Duration : 50hours
Discharging condition
Load : 300kohm
Temp.: 23 oC
End Voltage : 2.0V
2.6 | Charging Voltage(V) | 3.2 | |
2.8 | 3.0 | ||
3.5
Charging voltage: 3.0V
Load: 300K ohm
3.0
Voltage(V) | 2.5 |
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| 60 oC |
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2.0 |
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Cell |
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| 23oC |
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| 1.5 |
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| 1.0 | 0 | 100 | 200 | 300 | 400 |
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Discharge Characteristics after Storage of ML421
Charge/ Discharge Cycle Characteristics of ML421 |
3.5
3.0
Discharge Condition Load : 300kohm Temp.: 23 oC
(V) | 3.0 |
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discharge | 2.5 |
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Voltage(V) | 2.5 |
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| 2.0 |
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| after 40days storage at 60 oC |
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1.5 |
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| 1.0 | 0 | 50 | 100 | 150 | 200 |
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| Duration(hour) |
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| 2.0 |
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of | 1.5 |
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end |
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| Charge: 0.05mA 3.0V |
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1.0 |
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| Discharge: 0.05mA X 4h |
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| Temp.: 23 oC |
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Voltage | 0.5 |
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