Individual Data Sheets
LC-P127R2P
For standby power supplies.
Expected trickle design life: 10 – 12 years at 20°C according to Eurobat.
Dimensions (mm)
Terminal type (option)
4.75
6.35
6.35
4. 5
(187)
(250)
Contents indicated (including the recycle marking, etc.)
are subject to change without notice.
Battery case resin: Flame-retardant (UL94 V-0)
Specifications
Nominal voltage
Nominal capacity (20 hour rate)
Length
Width
Dimensions
Height
Total Height
Approx. mass
Terminal
94mm
100mm
2.5kg
Faston 187 or
Faston 250 with hole
12V
7.2Ah
151mm
64.5mm
Duration of discharge vs Discharge current
30
20
10
( h ou r )
5
3
40 °C
25 °C
Du r ati o n o f di s ch ar g e
60
30
0 °C
( m i n u te)
10
5
3
-15 °C
Characteristics
Capacity
(25°C)
20 hour rate
10 hour rate
5 hour rate
1 hour rate
Fully charged battery
(25°C)
40°C
25°C
0°C
-15°C
After 3 months
After 6 months
After 12 months
7.2Ah
6.8Ah
6.3Ah
4.9Ah
21mΩ
102%
100%
85%
65%
91%
82%
64%
Internal resistance
Temperature dependency
of capacity (20 hour rate)
Self discharge
(25°C)
1
0.1
3.2
0.3
3
10
1.0
Discharge current (A)
30
100
Watt Table
Cut-off V
(Wattage/Battery)
5min
341
320
300
269
237
10min
223
218
213
197
176
15min
170
169
166
154
144
20min
143
140
138
131
128
30min
106
105
104
102
98
45min
75.1
74.7
74.0
72.8
71.6
1h
60.1
60.1
58.9
57.7
56.5
1.5h
41.3
40.5
39.7
38.9
37.8
2h
32.0
31.7
30.9
29.8
28.4
3h
23.8
23.7
23.4
23.1
22.6
4h
18.3
18.2
18.0
17.9
17.7
5h
15.1
15.0
14.9
14.7
14.4
6h
12.1
12.1
12.0
11.8
11.7
10h
8.04
8.00
7.92
7.88
7.80
20h
4.36
4.34
4.33
4.32
4.30
24h
3.64
3.62
3.61
3.60
3.58
3min
433
401
370
329
278
9.6V
9.9V
10.2V
10.5V
10.8V
Ampere Table
Cut-off V
(Ampere/Battery)
10min
19.9
19.5
19.0
17.6
15.7
15min
14.8
14.7
14.4
13.4
12.5
20min
12.3
12.1
11.9
11.3
11.0
30min
9.1
9.0
8.9
8.7
8.4
45min
6.4
6.4
6.3
6.2
6.1
1h
5.1
5.1
5.0
4.9
4.8
1.5h
3.50
3.43
3.36
3.29
3.20
2h
2.70
2.68
2.61
2.52
2.40
3h
2.00
1.99
1.97
1.94
1.90
4h
1.53
1.52
1.51
1.50
1.48
5h
1.26
1.25
1.24
1.23
1.20
6h
1.012
1.008
1.000
0.988
0.972
10h
0.670
0.667
0.660
0.657
0.650
20h
0.363
0.362
0.361
0.360
0.358
24h
0.303
0.302
0.301
0.300
0.298
3min
38.9
36.1
33.3
29.6
25.0
5min
30.6
28.7
26.9
24.1
21.3
9.6V
9.9V
10.2V
10.5V
10.8V
Valve Regulated Lead-Acid Batteries
76
Individual Data Sheets
Charging Method
Trickle Use
Control voltage: 13.6 - 13.8V;
Initial current: 1.08A or smaller
Cut off voltage
Discharge current
Cut off voltage (V)
0.36A -
1.44A
10.5
1.44A -
3.6A
10.2
3.6A -
7.2A
9.9
7.2A -
14.4A
9.3
14.4A -
21.6A
8.7
Influence of Temperature on Trickle life
100
Residual capacity vs storage period
120
Capaci ty R eten ti o n R ati o ( %)
100
80
60
40
20
0
40 °C
(104 °F)
30 °C
(86 °F)
25 °C
(77 °F)
5 °C
(41 °F)
Se r v i c e L i f e ( Ye a r s )
10
Charging Voltage
2.275 V / Cell
1
0.1
0
10
20
30
40
Temperature (°C)
50
60
0
2
4
6
8
10
12
14
16
18
20
Storage Period (Month)
Constant-voltage and constant-current charge
characteristics for Trickle use
160
0.3
Ch ar g e Qu an ti ty ( %)
Ch a r g e Cu r r e n t ( CA )
140
120
100
80
60
40
20
0
0
0
4
8
12
16
20
Charge Time (h)
Battery Voltage
Charge Quantity (to-Discharge Quantity)
Discharge capacity by temperature
and by discharge current
120
16
14
12
10
8
6
4
2
0
B atter y V o l tag e ( V )
100
Capaci ty ( %)
80
60
40
20
0
-20
-10
0
10
20
30
Battery temperature (°C)
40
50
0.2
1
Discharge
0.1
100
% (0.05 CA*20H)
50 % (0.05 CA*10H)
2
Charge
Charge
Voltage 13.65 V
(2.275
V
/ Cell)
Charge Current 0.15 CA
3
Temperature 25 °C (77 °F)
0.05 CA
0.1 CA
0.2 CA
0.5 CA
1 CA
2 CA
3 CA
Charge Current
Discharge characteristics
15
14
T er m i n al v o l tag e ( V )
13
12
11
10
1.8 A
9
8
7
6
5
0
1
2
5
(minute)
0.72 A
0.36 A
3.6 A
21.6 A
7.2 A
10
20
40
60
2
4
6
8 10
20
40
(hour)
Duration of discharge
77
Valve Regulated Lead-Acid Batteries
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