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Typical Characteristics
Charge Characteristics of ML621
Cell Type ML621 |
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Specifications |
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Nominal Capacity*1 |
| 5.5mAh | |
Nominal Voltage |
| 3V | |
Standard Charge/Discharge Current | Continuous*2 | 0.015mA | |
Max. Discharge Current | 0.5mA | ||
Pulse*3 | 1.5mA | ||
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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 |
| 0.22g | |
Dimensions | Diameter(D) | 6.8mm | |
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 ML621
Cell Voltage(V)
3.5
3.0 Cell Voltage
2.5
2.0
1.5 |
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| Charge circuit | 1kohm Temp.:23oC |
| Charge Capacity |
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1.0 |
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| 3.0V | ML621 |
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| discharged cell to 2.0V |
0.5 | 0 | 10 | 20 | 30 | 40 |
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| 6.0 | Capacity(mAh) |
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| 5.0 | |
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| 4.0 | |
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| 3.0 |
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| 2.0 |
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| 1.0 Charge | |
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50 |
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| 3.5 |
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| Charging Voltage : 3.0V |
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| Load : 150kohm |
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| 3.0 |
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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 | 50 | 100 | 150 | 200 | 250 | 300 | 350 | 400 |
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Discharge Characteristics after Continuous Charge of ML621
Discharge Characteristics After Storage of ML621 |
3.5
3.0
Discharge Condition
Load: 150kohm
Temp.: 23oC
3.5 |
Load:150kohm |
Temp.:23 oC |
3.0 |
Voltage(V) | 2.5 |
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Cell | 2.0 |
| Initial (3.0V charged) |
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| after 60days continuous charged 3.0V at 60 oC |
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| 1.5 |
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| 1.0 | 0 | 50 | 100 | 150 | 200 | 250 | 300 | 350 | 400 |
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Voltage(V) | 2.5 |
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Cell | 2.0 |
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| Initial(3.0V charged) |
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| after 20days storage at 60oC |
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| 1.5 |
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| 1.0 | 0 | 50 | 100 | 150 | 200 | 250 | 300 | 350 | 400 |
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