Sanyo Ml421 User Manual

Cell Type ML421  
Specifications  
Nominal Capacity*1  
2.3mAh  
3V  
Nominal Voltage  
Standard Charge/Discharge Current  
0.005mA  
Continuous*2  
0.2mA  
Max. Discharge Current  
Pulse*3  
0.6mA  
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  
D
0.1g  
Diameter(D)  
Height(H)  
4.8mm  
2.1mm  
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  
Charging Voltage vs. Capacity of ML421  
Temperature Characteristics of ML421  
2.5  
3.5  
Charging voltage: 3.0V  
Load: 300K ohm  
2.0  
1.5  
1.0  
3.0  
2.5  
oC  
60  
2.0  
Charging Conditon(discharged cell to 2.0V)  
Load:3kohm  
oC  
oC  
23  
-20  
oC  
Temp.: 23  
Charging Duration : 50hours  
Discharging condition  
Load : 300kohm  
Temp.: 23oC  
0.5  
0
1.5  
1.0  
End Voltage : 2.0V  
2.6  
2.8  
3.0  
3.2  
0
100  
200  
300  
400  
Charging Voltage(V)  
Duration(hour)  
Discharge Characteristics after Storage of ML421  
Charge/ Discharge Cycle Characteristics of ML421  
3.5  
3.0  
Discharge Condition  
Load : 300kohm  
oC  
Temp.: 23  
2.5  
2.0  
3.0  
2.5  
2.0  
1.5  
1.0  
1.5  
Charge: 0.05mA 3.0V cut-off  
Discharge: 0.05mA X 4h  
1.0  
oC  
Temp.: 23  
oC  
after 40days storage at 60  
0.5  
0
0
50  
100  
150  
200  
250  
300  
350  
400  
0
100  
200  
300  
400  
500  
600  
Duration(hour)  
Number of Cycles  

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