WP4.5-12 12Volt 4.5Ah
Specifications
Nominal Voltage(V) 12V
Nominal Capacity
20 hour rate (0.225A to 10.50V) 4.5Ah
10 hour rate (0.428A to 10.50V) 4.275Ah
5 hour rate (0.765A to 10.20V) 3.825Ah
1 C (4.5A to 9.60V) 2.55Ah
3 C (13.5A to 9.60V) 1.8Ah
Weight Approx. 1.62kg(3.56Lbs.)
Internal Resistance (at 1KHz) Approx. 34.2 mΩ
Maximum Discharge Current for
5 seconds: 67.5A
Charging Methods at 25℃(77℉)
Cycle use:
Charging Voltage 14.4 to 15.0V
Coefficient -5.0mv/
Maximum Charging Current： 1.35A
Standby use:
Float Charging Voltage 13.50 to 13.80V
Coefficient -3.0mv/
Operating Temperature Range
Charge -15℃(5℉) to 40℃(104℉)
Discharge
Storage
Charge Retention (shelf life) at 20℃(68℉)
1 month 92％
3 month 90％
6 month 80％
Case Material ABS
(Option: UL94 HB & UL94 V-0 flame retardant )
℃/cell
℃/cell
-15℃(5℉) to 50℃(122℉)
-15℃(5℉) to 40℃(104℉)
Dimensions mm(inch)
90 1(3.54 0.04)
±±
(v)
FOR 12V
BATTERY
13.0
12.0
11.0
10.0
9.0
)
9
5
1
7
.
.
0
4
(
)
3
8
0
.
.
0
0
(
F1
70 1(2.76 0.04)
)
)
4
4
0
.
0
.
0
0
±
±
1
8
2
.
9
.
4
(
3
(
1
1
±
±
7
1
0
0
1
1
Discharge Time VS. Discharge Current (25 )
13.5A
4.5A
)
5
5
2
3
.
.
0
6
(
)
3
8
0
.
.
0
0
(
F2
±±
0.765A
0.428A
℃
0.225A
Te r mi n a l F1 or F2 (Faston Tab 187 or 250)
8.0
2 4 6 8 10 20 40 60 2 5 6 8 10 20
1
minutes
Discharge Time
hours
W
m
e
e
P4.5-12
- PERFORMANCE DATA
Discharge Rates in Watts to Various End Voltages at 25℃(77℉)
Time
- Discharge Rates in Amperes to Various End Voltages at 25℃(77℉)
End Voltage
Time
All data on the spec. sheet is an average value:
The tolerance range : X<6min(+15%~-15%), 6min≦X<10min(+12%~-12%),10min ≦X < 60min(+8% ~-8%), X≧60min(+5%~-5%)
Contents in this data sheet are subject to change for improvement without prior notice to users. For clarifications and updated information, please contact us.
Effect of Temperature on Capacity 25 (77 )
120
100
%
80
y
t
i
c
60
a
p
a
40
C
20
0
-20 -10 0 10 2 0 30 40 50
-4 14 32 50 68 86 104 122
Temperature
Trickle (or float) Service Lif
10
5
)
s
r
3
a
e
2
y
(
e
f
i
L
0.5
20
30 40 50 ( )
68 86 104 122 ( )
Ambient Temperature
End Voltage
1.85V 1.80V 1.75V 1.70V 1.67V 1.65V 1.60V
℃℉
0.05CA
0.1CA
0.25CA
0.6CA
1CA
2CA
℃
℉
℃
℉
Capacity Retention Characteristic
(%)
100
0(32)
75
50
aining Capacity
25
Re
0
120
100
%
y
t
80
i
c
a
p
60
a
Discharge Depth 100%
C
40
20
0 200 400 600 800 1000 1200 1400 1600
40 (104 )
℃℉
30 (86 )
℃℉
369121518
Storage Time (months)
Cycle Service Lif
Discharge Depth 50%
Discharge Depth 30%
(1) Discha rg e : 0.17CA
(2) Char ge : CV 2.4V/cell 16H Imax 0.3CA
(3) End of life discharge voltage : 1.65 Vpc
(4) Temperature : 25 2
Number of Cycles (times)
±℃
℃℉
10 (50 )
℃℉
20 (68 )
℃℉
＊
5 min 143 161 174 186 191 197 204
10 min 102 115 123 129 132 135 138
15 min 84.5 93.4 97.2 99.1 100 101 102
30 min 49.1 54.9 57.1 58.2 58.8 59.5 60.2
60 min 25.2 28.6 30.8 32.6 33.2 33.9 34.4
120 min 14.9 16.6 17.4 18.0 18.3 18.7 19.1
180 min 11.8 13.0 13.6 14.1 14.3 14.6 14.9
240 min 9.61 10.4 10.8 11.1 11.3 11.5 11.7
300 min 8.76 9.35 9.62 9.81 9.92 10.1 10.3
600 min 5.13 5.48 5.64 5.76 5.81 5.87 5.95
1200 min 2.59 2.81 2.99 3.06 3.08 3.12 3.16
1.85V 1.80V 1.75V 1.70V 1.67V 1.65V 1.60V
5 min 15.3 17.6 18.9 19.5 19.7 19.9 20.2
10 min 10.5 11.7 11.9 12.1 12.2 12.3 12.4
15 min 7.56 8.22 8.71 8.92 8.99 9.07 9.15
30 min 4.39 4.94 5.11 5.25 5.3 5.35 5.41
60 min 2.36 2.61 2.73 2.84 2.87 2.91 2.94
120 min 1.32 1.44 1.50 1.54 1.55 1.57 1.59
180 min 1.09 1.15 1.18 1.20 1.21 1.22 1.23
240 min 0.835 0.891 0.916 0.942 0.948 0.955 0.963
300 min 0.776 0.812 0.825 0.837 0.841 0.846 0.852
600 min 0.435 0.452 0.464 0.473 0.477 0.481 0.486
1200 min 0.219 0.233 0.241 0.247 0.250 0.253 0.257
261112-1E
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