Data Sheet

WPS40-12 12Volt 40Ah
Specifications
Nominal Voltage(V) 12V
Nominal Capacity
20 hour rate (2A to 10.50V) 40Ah
10 hour rate (3.8A to 10.50V)
38Ah
5 hour rate (6.8A to 10.20V)
34Ah
1 C (40A to 9.60V)
21.33Ah
3 C (120A to 9.60V)
14Ah
Weight Approx. 12.6kg(27.7Lbs.)
Internal Resistance (at 1KHz) Approx. 8.5 mΩ
Dimensions mm(inch)
Maximum Discharge Current for
5 seconds: 480A
Charging Methods at 25℃(77℉)
Cycle use:
Charging Voltage 14.4 to 15.0V
Coefficient -5.0mV/
℃/cell
Maximum Charging Current
： 12A
Standby use:
Float Charging Voltage 13.5 to 13.8V
Coefficient -3.0mV/
℃/cell
Operating Temperature Range
Charge -15℃(5℉) to 40℃(104℉)
Discharge
-15℃(5℉) to 50℃(122℉)
Storage
-15℃(5℉) to 40℃(104℉)
Charge Retention (shelf life) at 20℃(68℉)
1 month 92％
3 month
90％
6 month
80％
Case Material ABS UL94 HB
Option: Flammability resistance of (UL94 V-0)
Te rmi n al F4
166 (6.54 ) ±±
199 (7.83 ) ±±
1
7
1
(
6
.
7
3
)
±
±
3
1
0.12
0.04
3
1
0.12
0.04
3
1
0
.
1
2
0
.
0
4
16
6
.
5
1
7
7.2
F4
2 4 6 8 10 20 40 60 2 5 6 8 10 20
1
8.0
9.0
10.0
11.0
12.0
13.0
FOR 12V
BATTERY
(v)
Discharge Time VS. Discharge Current (25 ) ℃
minutes
hours
Discharge Time
120A 40A
6.8A
3.8A
2A