Aug．2002
Cell Type UPF383456L
Specifications
Nominal Capacity
Nominal Voltage
640mAh
3.7V
Constant Current
-Constant Voltage
4.2V
Charging Method
Charging Voltage
Charging Current
Charging Time
Std. 640mA
3.0hrs.
Charge
Discharge
Storage
0 +40
～
℃
℃
℃
Ambient Temperature
Weight (Approx.)
-20 +60
～
-20 +50
～
14.5g
W
(T)
(W)
(H)
3.90mm
34.00mm
56.00mm
318Wh/l
Dimensions (Max.)
T
W
H
3.85mm
34.0mm
55.5mm
Dimensions(Typ.)
of
Volumetric EnergyDensity
Gravimetric EnergyDensity
Bare Cell
163Wh/kg
Typical Characteristics
Discharge rate characteristics
Discharge temperature characteristics
4.5
4.5
4.0
3.5
3.0
2.5
2.0
4.0
3.5
Under evaluation
Under evaluation
3.0
2.5
2.0
60
℃
40
℃
20
℃
0
℃
-10
℃
-20
℃
0
200
400
600
800
1000
1200
1400
0
200
400
600
800 1000 1200 1400 1600 1800 2000
Discharge Capacity / mAh
Discharge Capacity / mAh
Charge characteristics
Cycle characteristics
4.5
2500
2000
1800
1600
1400
1200
4.0
3.5
2000
1500
1000
500
0
2000
1500
1000
500
Under evaluation
1000
800
600
400
200
0
Under evaluation
3.0
2.5
2.0
0
60
120
180
240
0
100
200
300
400
500
Charge Time / min
Number of Cycle
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