LC-WTP127R2

For pitch backup systems in wind turbines

Expected life: 10 years at 20℃, 6 years at 25℃

(based on a weekly discharge cycle of max 15 seconds)

■

Dimensions(mm)

■

Specification

■

Duration of discharge vs. discharge current

■

Characteristics

■

Large current discharge characteristics(25℃)

Peak current(A for milliseconds)

160

150

140

130

120

112

105

94

86

80

75

Discharge current(A)

144

135

126

117

108

101

95

85

78

72

68

Discharge time(sec)

3

6

10

15

20

25

30

40

50

60

70

Peak current(A for milliseconds)

70

66

62

59

55

52

49

46

44

42

40

Discharge current(A)

63

60

56

53

50

47

44

42

40

38

36

Discharge time(sec)

80

90

100

110

120

130

140

150

160

170

180

The cut off voltage should be more than 8.0V.Battery should be charged after each discharge.

■

Charging method

**Please consult us for the right control voltage if the ambient temperature is different.

■

Operating temperature range

* For storage, please ensure that battery is fully charged.

-40℃~ 50℃

-20℃~ 50℃

-20℃~ 50℃

**Control voltage: 13.6V~13.8V at 20℃~25℃　with temperature compensation, Initial current: 1.08A or smaller

*Storage

Charge

Discharge

Battery case resin: Flame-retardant (UL94V-0)

※

Contents indicated (including the recycle

marking,etc) are subject to change without notice.

Terminal

Approx. Mass

Nominal Voltage

12V

Rated Capacity(20HR)

Dimensions

Length

Total height

Width

Faston 250M

2.50 kg

Height

100 mm

7.2Ah

151 mm

64.5 mm

94 mm

Temperature

Dependency of

Capacity

(20 hour rate)

Self Discharge

(25 ℃)

21 mΩ

1 hour rate

4.9Ah

0 ℃

100%

Fully charged battery

Internal Resistance

(25 ℃)

40 ℃

102%

After 6 months

82%

85%

25 ℃

65%

-15 ℃

64%

After 3 months

91%

After 12 months

Capacity

(25 ℃)

6.5Ah

3 hour rate

5.8Ah

10 hour rate

20 hour rate

7.2Ah

0.1

0.3

1

310

30

100

1

3

5

10

30

60

3

5

10

20

30

40℃

25℃

0℃

-15℃

Discharge current(A)

Terminal type

6.35

1/2