VALVE-REGULATED LEAD ACID BATTERIES: INDIVIDUAL DATA SHEET
For main power supplies.
Cycle long life type.
LC-XC1228AP
Dimensions (mm)
Terminal type: LC-XC1228AP: M5 threaded post
+
6.496±0.079 (165±2)
4.921±0.079 (125±2)
0.47 (12)
5.28 (134)
3.54 (90)
4.88 (124)
6.43 (163.4)
Battery case resin: Standard (UL94HB) Color is black.
Photo/Label for reference only.
Discharge characteristics 77°F (25°C) (Note)
Specifications
14.4
13.8
13.2
Nominal Voltage
Rated Capacity (20 hour rate)
Length
12V
28Ah
6.496 inches (165 mm)
12.6
12.0
11.4
Width
4.921 inches (125 mm)
6.890 inches (175 mm)
Dimensions
Height
Total Height
Approx. mass
10.8
1.4A
10.2
9.6
9.0
8.4
7.8
7.2
7A
7.07 inches (179.5 mm)
24.34 lbs. (11 kg)
28A
Standard Terminals
and Resin
LC-XC1228AP
UL94HB M5 Threaded Post
0
1
10
100
1000 2000
Duration of Discharge (minutes)
Characteristics
20 hour rate (1.4A)
28Ah
26.5Ah
24Ah
(Note)
Duration of discharge vs. Discharge current
10 hour rate (2.65A)
5 hour rate (4.8A)
1 hour rate (18A)
Capacity (note)
77˚F (25˚C)
2000
18Ah
1.5 hour rate discharge
Cut-off voltage 10.5 V
Fully charged battery
77˚F (25˚C)
14A
1000
Approx. 10mΩ
Internal Resistance
Temperature
dependency
of capacity
102%
100%
85%
104˚F (40˚C)
77˚F (25˚C)
32˚F (0˚C)
0˚C
40˚C
(20 hour rate)
65%
5˚F (-15˚C)
100
10
1
Residual capacity
after standing 3 months
Residual capacity
after standing 6 months
Residual capacity
after standing 12 months
91%
82%
Self discharge
77˚F (25˚C)
64%
25˚C
Initial current
11.2 A or smaller
Charge
Method
(Constant
Voltage)
Cycle use
(Repeating
14.5V to 14.9V
(per 12V cell 25˚C)
Control voltage
use)
(Note) The above characteristics data are average values obtained
within three charge/discharge. Cycles not the minimum values.
1
3
5
10
30
50
100
Discharge Current (A)
VRLA BATTERIES
AUGUST 2003
This information is generally descriptive only and is not intended to make or imply any representation, guarantee or warranty with respect to any cells and batteries. Cell and battery designs/specifications are subject
to modification without notice. Contact Panasonic for the latest information.
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