LC-WTV1212 Datasheet, PDF (1/1 Pages) Panasonic Battery Group – For pitch backup systems in wind turbines

LC-WTV1212
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 (option)
6.35
Contents indicated (including the recycle marking,
etc) are subject to change without notice.
Battery case resin: Flame-retardant (UL94V-0)
■Specification
Nominal Voltage
Rated Capacity(20HR)
Length
Dimensions
Width
Height
Total height
Approx. Mass
Terminal
12V
12Ah
151 mm
98 mm
94 mm
100 mm
3.85 kg
250M
■Duration of discharge vs. discharge current
30
20
40℃
10
5
3
25℃
■Characteristics
20 hour rate
Capacity
(25 ℃)
10 hour rate
3 hour rate
1 hour rate
Fully charged battery
Internal Resistance
(25 ℃)
Temperature
Dependency of
Capacity
(20 hour rate)
40 ℃
25 ℃
0℃
-15 ℃
Self Discharge
(25 ℃)
After 3 months
After 6 months
After 12 months
12Ah
10Ah
9.3Ah
8.5Ah
15 mΩ
102%
100%
85%
65%
91%
82%
64%
60
30
0℃
10
-15℃
5
3
1
0.1 0.3 1 3 10 30 100
Discharge current(A)
■Large current discharge characteristics(25℃)
Peak current(A for milliseconds)
267 250 233 217 200 187 175 157 143 133 125
Discharge current(A)
240 225 210 195 180 168 158 142 130 120 113
Discharge time(sec)
3 6 10 15 20 25 30 40 50 60 70
Peak current(A for milliseconds)
117 110 103 98 92 87 82 77 73 70 67
Discharge current(A)
105 100 93 88 83 78 73 70 67 63 60
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: 1.80A or smaller
**Please consult us for the right control voltage if the ambient temperature is different.
■Operating Temperature Range
*Storage
Charge
Discharge
-40℃~ 50℃
-20℃~ 50℃
-20℃~ 50℃
* For storage, please ensure that battery is fully charged.
Data in this sheet are for reference only and are not guaranteed values.
1/1
2009.06