LP SERIES-General Purpose
LP12-55 (12V55AH)
Specification
Nominal Voltage
12V
Nominal Capacity(10HR)
55.0AH
Dimensions
Length
Width
Container Height
Total Height (with Terminal)
229
138
205
211
3mm (9.02 inches)
2mm (5.43 inches)
3mm (8.07 inches)
3mm (8.31 inches)
Approx 16.2 kg (35.7lbs)
Approx Weight
Terminal
T6
Container Material
ABS
Rated Capacity
57.2 AH/2.86A
55.0 AH/5.50A
47.3 AH/9.46A
42.9 AH/14.3A
33.6 AH/33.6A
Max. Discharge Current
660A (5s)
Internal Resistance
Approx 7.5mÙ
(20hr ,1.80V/cell,250C/770F)
(10hr,1.80V/cell,250C/770F)
(5hr,1.75V/cell,250C/770F)
(3hr,1.75V/cell,250C/770F)
(1hr,1.60V/cell,250C/770F)
Applications
All purpose
Uninterruptable Power Supply (UPS)
Electric Power System (EPS)
Emergency backup power supply
0
Emergency light
0
Operating Temp.Range
Discharge : -15 50 C (5 122 F)
Charge
: 0 400C (32 1040F)
Storage : -15 400C (5 1040F)
Nominal Operating Temp. Range
25 30C (77 50F )
Railway signal
Aircraft signal
Alarm and security system
Initial Charging Current less than 16.5A.Voltage
Cycle Use
0
Electronic apparatus and equipment
0
0
14.4V~15.0V at 25 C(77 F)Temp. Coefficient -30mV/ C
Communication power supply
No limit on Initial Charging Current Voltage
Standby Use
0
DC power supply
0
0
13.5V~13.8V at 25 C(77 F)Temp. Coefficient -20mV/ C
Auto control system
103%
40o C (104o F)
100%
25o C ( 77o F)
86%
0o C
( 32o F)
Leoch LP series batteries may be stored for up to 6 months
at 250 C(770F) and then a freshening charge is required.
For higher temperatures the time interval will be shorter.
Capacity affected by
Temperature
Self Discharge
VdS
t est ed
9
Germany
Constant Current Discharge (Amperes) at 25 0C (77 0F )
F.V/Time
5min
10min
15min
20min
30min
45min
1h
2h
3h
4h
5h
6h
8h
10h
20h
1.85V/cell
94.1
74.0
62.9
52.6
41.8
31.7
25.9
16.5
13.1
10.7
8.60
7.49
6.08
5.19
2.83
1.80V/cell 126.4
94.6
76.0
62.2
49.4
36.8
29.0
18.0
14.1
11.4
9.23
8.03
6.45
5.50
2.86
1.75V/cell 142.5
103.9
83.1
66.9
51.3
38.2
30.4
18.7
14.3
11.6
9.46
8.25
6.56
5.56
2.89
1.70V/cell 156.9
113.3
88.7
70.4
53.3
39.7
31.3
19.4
14.7
11.9
9.71
8.42
6.65
5.61
2.94
1.65V/cell 173.0
122.2
94.3
74.7
56.3
40.7
32.4
20.0
15.3
12.4
9.98
8.61
6.75
5.73
2.98
12.7
10.3
8.79
6.82
5.79
3.00
8h
10h
20h
1.60V/cell 190.8
132.7
100.8
79.6
59.4
42.5
33.6
20.7
15.8
Constant Power Discharge (Watts/cell) at 25 0C (77 0F )
F.V/Time
5min
10min
15min
20min
30min
45min
1h
2h
3h
4h
5h
6h
1.85V/cell
172.1
136.7
117.4
99.2
79.7
60.9
50.0
32.1
25.5
20.9
16.9
14.7
12.0
10.3
5.61
1.80V/cell
228.6
172.6
140.0
115.6
92.7
70.2
55.7
34.8
27.2
22.2
18.0
15.7
12.7
10.9
5.66
1.75V/cell
252.2
186.6
151.0
123.1
95.4
72.2
58.0
35.9
27.6
22.6
18.4
16.1
12.9
11.0
5.70
1.70V/cell
270.0
198.8
159.0
128.4
98.7
74.8
59.7
37.3
28.4
23.1
18.9
16.4
13.0
11.1
5.81
1.65V/cell
293.6
212.6
167.8
135.4
103.3
76.0
61.2
38.1
29.4
23.8
19.3
16.7
13.2
11.3
5.88
1.60V/cell
316.3
225.5
176.5
142.7
108.3
78.8
63.1
39.2
30.2
24.5
19.9
17.0
13.3
11.4
5.90
1
Specifications subject to change without notice.
Dimensions
T6 Terminal
Unit: mm [inches]
6 [0.63]
138 2
38
205 2
211 2
6 [0.236]
M6 [0.236]
180
229 2
Discharge Characteristics
12V
Battery
V
Float Charging Characteristics
0
Temperature:25 0 C(77F)
Charging Charging
Current Voltage
Charge
Volume
13.0
Terminal Voltage(V)
12.0
0
0.10CA-2.25V/cell
(V)
(XCA)
%
temperature25 C
0.25
120
110
11.0
0.4C
10.0
1C
9.0
0.205C
100
0.1C 0.0525C
90
80
15.0
14.0
50
Charge Voltage
(Constant 2.25v/cell)
0.15
13.0
70
60
0.6C
Charged Volume
0.20
0.10
After 50% Discharge
12.0
40
8.0
30
2C
1
2
4
6
8 10
20
40
2
60
6 8 10
4
20
10
0
20
H
Min
After 100% Discharge
0.05
11.0
Charging Current
0
0
4
8
16
12
20
32
28
24
36
40
Discharge Time
Charging Time(hours)
Temperature Effects in Relation to Battery Capacity
Effect of Temperature on Long Term Float Life
120
10
6
5
4
0.25CA
80
Life expectancy(year)
%
100
Capacity
8
0.1CA
0.17CA
60
40
Charging voltage :
2.25V/cell
3
2
1
20
0.5
-20
0
-10
10
20
30
40
50
30
86
20
68
60
Temperature( C)
Testing condition
Discharging:current 0.17C (FV 1.7V/cell);
Charging:current 0.25C max, voltage 2.45V/cell;
Charging volume:125% of discharged capacity.
Remaining Capacity(%)
Capcity(%)
80
60
50%
DOD
400
600
800
1000
A
250C
B
60
300C
400C
40
C
20
0
30%
DOD
2
4
6
8
12
10
Storage Time(Months)
Ambient Termperature:
25oC (77oF)
200
100C
80
100
0
0
C
F
O
100
120
20
0
Self Discharge Characteristics
Cycle Life in Relation to Depth of Discharge
100%
DOD
50
122
Battery temperature
0
40
40
104
A
No supplementary charge required
(Carry out supplementary charge before use if 100% capacity is required.)
B
Supplementary charge required before use.Optional charging way as below:
1.Charged for above 3 days at limted current 0.25CA and constant volatge 2.25V/cell.
2.Charged for above 20hours at limted current 0.25CA and constant volatge 2.45V/cell.
3.Charged for 8~10hours at limted current 0.05CA .
C
Supplementary charge may often fail to recover the capacity.
The battery should never be left standing till this is reached.
1200
Number of Cycles
Sales Office
China sales office:
HongKong sales office:
Singapore sales office:
North America sales office:
Europe sales office:
Add:5th Floor,Xinbaohui Bldg.,Nanhai Blvd.,
Nanshan,Shenzhen, China. 518052
Tel:+ 86-755-86036060 (100 lines)
Fax: +86-755-26067269
E-mail:export@leoch.com
Http://www.leoch.com
Add: Workshop C, 33/F, TML Tower,
No. 3 Hoi Shing Road, Tsuen Wan,
New Territories, Hong Kong
Tel: +852 35786666
Fax: +852 21170016
E-mail: sales.hk@leoch.com
Add: No. 1 Tech Park Crescent,
Singapore 638131
Tel: +65 68416629
Fax: +65 68443210
Email sales.sg@Leoch.com
Add: 19751 Descartes, Unit A,
Foothill Ranch, CA 92610, USA
Tel: 949-588-5853
Fax: 949-588-5966
E-mail: sales@leoch.us
Http://www.leoch.com
Add: 9B Wheatstone Court. Waterwells
Business Park, Gloucester, GL2-2AQ,
UK United Kingdom
Tel: +44(0) 1452 729428 / 1452 729696
Fax: +44 (0)1452-690125
E-mail: Sales.Europe@leoch.com
2
Publication No.:LB-LP-06-14
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