0

50

100

150

200

250

300

350

400

1.0

1.5

2.0

2.5

3.0

3.5

Load:150kohm

Temp.:23

Initial(3.0V charged)

after 20days storage at 60

0

10

20

30

40

50

0.5

1.0

1.5

2.0

2.5

3.0

3.5

0

1.0

2.0

3.0

4.0

5.0

6.0

Charge Capacity

Cell Voltage

Cell Type ML621

Specifications

5.

8mAh

3V

0.015mA

Continuous

*2

0.5mA

Pulse

*3

1.5mA

Discharging Depth of 5%

3000

Discharging Depth of 20%

300

Constant Voltage Charge

3.1±0.15V

Hight Temperature

2.95±0.15V

-20℃～60℃

0.22g

Diameter(D)

6.8mm

Height(H)

2.1mm

Dimensions

Charging Method

Nominal Capacity

*1

Nominal Voltage

Standard Charge/Discharge Current

Weight

Charge/Discharge Cycle Characteristics

Max. Discharge Current

Temperature Range

Typical Characteristics

Duration(hour)

Charge Characteristics of ML621

Duration(hour)

Discharge Characteristics After Storage of ML621

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

Current value for obtaining 2.0V cell voltage when 15sec. pulse is applied at 50%

discharge depth at 23 oC.

*3

D

3.0V

ML621

1kohm

Charge circuit

Temp.:23oC

discharged cell to 2.0V

oC

oC

0

50

100

150

200

250

300

350

400

1.0

1.5

2.0

2.5

3.0

3.5

Discharge Condition

Load: 150kohm

Temp.: 23

Initial (3.0V charged)

after 60days continuous charged 3.0V at 60

Discharge Characteristics after Continuous Charge of ML621

Duration(hour)

oC

oC

0

50

100

150

200

250

300

350

400

1.0

1.5

2.0

2.5

3.0

3.5

Charging Voltage : 3.0V

Load : 150kohm

60

23

-20

Temperature Characteristics of ML621

Duration(hour)

oC

oC

oC