Page 1
UL 2.4 - 12
12V 2.4AH
STANDBY
Terminal Type
Dimensions
Specifications
UL 2.4 - 12
5 Years
20HR (0.12A,1.75V) 10HR (0.228A,1.75V) 5HR (0.408A,1.75V) 1HR (1.44A,1.55V)
2.4AH 2.28AH 2.04AH 1.44AH
Length Width Height Total Height
178mm 35mm 61mm 67mm
1Kg
Fully Charged at 25
o
40
C 25oC 0oC -15oC
102%
Cycle Use
14.0-15.0V (-24mV/C), max. Current: 0.72A
3% of capacity declined per month at 25
100% 85% 65%
o
C 0.046 Ohm
o
C
Float Use
13.6-13.8V (-18mV/C)
Construction
2008 2008
Page 2
UL 2.4 - 12
12V 2.4AH
STANDBY
Charge Characteristic
Ch a
Ca p
Ch a
Cu r
Ch a
Vol
%) (CA) (V)
(
120
100
80
0.25
0.20
60
0.15
40
0.10
20
0.05
0
0
14
13
12
11
Constant Charge At 0.25CA-13.8V (25 )
Charge
Voltage
0 2
Time(hour)
Relationship of OCV and state of charge
13.5
13.0
12.5
12.0
Battery Voltage (V)
11.5
11.0
10 20 30 40 50 60 70 80 90 100
0
Remained Capacity(%)
o
C
Charge
Capacity
100%Discharge
50%Discharge
Charge Current
84 6 10 12
Discharge Characteristic 25oC
13
12
11
10
9
8
Discharge Voltage (V)
0 2 6 12 30 60 3 10 2 0
Min
Self Discharge Characteristics
110
105
100
95
90
85
80
75
70
65
Capacity (%)
60
55
50
o
40 C
45
40
1
0
2
3
o
30 C
4
5
7
8
6
Storage time:months
Hour
o
20 C
9
10
1413
15
12
11
19
16
20
1817
Constant Current Discharge Ratings - amperes at 25oC
8.61 5.38 4.05 2.48 1.44 0.70 0.43 0.24 0.13
8.10 5.20 3.90 2.37 1.42 0.65 0.43 0.24 0.13
7.41 4.92 3.82 2.17 1.40 0.60 0.42 0.24 0.13
7.28 4.76 3.69 2.07 1.37 0.58 0.41 0.23 0.12
6.52 4.55 3.37 1.90 1.34 0.57 0.40 0.23 0.12
5.75 4.33 3.02 1.75 1.30 0.56 0.39 0.23 0.12
o
Constant Power Discharge Ratings - watts at 25
17.3 12.10 9.12 5.52 2.88 1.22 0.83 0.47 0.25
16.8 11.76 8.88 5.47 2.87 1.21 0.83 0.46 0.24
16.4 11.52 8.64 5.40 2.83 1.20 0.82 0.46 0.24
15.6 11.14 8.40 5.28 2.80 1.18 0.81 0.46 0.24
14.9 10.61 7.92 5.04 2.76 1.15 0.80 0.46 0.24
14.3 10.12 7.46 4.83 2.73 1.13 0.79 0.45 0.23
C
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