Panasonic LC-WTV127R2 User Manual
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LC-WTV127R2
For pitch backup systems in wind turbines
Expected life: 5 years at 20℃, 3 years at 25℃
(based on a weekly discharge cycle of max 15 seconds)
■Dimensions(mm
Terminal type
6.35
4.5
Contents indicated (including the recycle marking,
etc) are subject to change without notice.
■Specification
Nominal Voltage 12V
Rated Capacity(20HR)
Length
Dimensions
Approx. Mass
Terminal
Width 64.5 mm
Height
Total height
■Characteristics
Capacity
(25 ℃)
Internal Resistance
Temperature
Dependency of
Capacity
(20 hour rate)
Self Discharge
(25 ℃)
10 hour rate
3 hour rate 5.8Ah
1 hour rate 4.9Ah
Fully charged battery
(25 ℃)
40 ℃
25 ℃
0 ℃
-15 ℃
After 3 months 91%
After 6 months 82%
After 12 months
7.2Ah
151 mm
94 mm
100 mm
2.50 kg
250M
7.2Ah20 hour rate
6.5Ah
21 mΩ
102%
100%
85%
65%
64%
Battery case resin: Flame-retardant (UL94V-0)
■Duration of discharge vs. discharge curren
30
20
40℃
-15℃
31030
1
25℃
Duration of discharge
10
5
(hour)
3
60
30
10
(minute)
5
3
1
0.1
0℃
0.3
Discharge current(A)
100
■Lar
e 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
**Control voltage: 13.6V~13.8V at 20℃~25℃ with temperature compensation, Initial current: 1.08A or smaller
**Please consult us for the right control voltage if the ambient temperature is different.
■Operating Temperature Range
*Storage
-40℃~ 50℃
* For storage, please ensure that battery is fully charged.
Charge
-20℃~ 50℃
Discharge
-20℃~ 50℃
Data in this sheet are for reference only and are not guaranteed values.
1/1 2009.06
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