Sealed Rechargeable
MODEL PS-12550 U
12 Volt 55.0 Amp. Hr.
Battery
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B
A
T
T
E
R
Y
M
U
S
T
B
E
R
E
C
Y
C
L
E
D
Pb
NONSPILLABLE
MH20845
®
L
HT H
W
18
22
17.4
10
9
9
8.5
13
18
22
15.9
10
8.5
13
Positive Terminal Negative Terminal
Tolerances are +/- 0.04 in. (+/- 1mm) and +/- 0.08 in. (+/- 2mm) for
height dimensions. All data subject to change without notice.
Physical Dimensions: in (mm)
Features
Absorbent Glass Mat (AGM) technology for superior
performance
Valve regulated, spill proof construction allows safe
operation in any position
Power/volume ratio yielding unrivaled energy density
Rugged impact resistant ABS case and cover (UL94-HB)
Integrated ABS carrying handles for ease of movement
Approved for transport by air. D.O.T., I.A.T.A., F.A.A. and
C.A.B. certi ed
U.L. recognized under le number MH 20845
•
•
•
•
•
•
•
Performance Specifi cations
Nominal Voltage ........................................................................ 12 volts (6 cells)
Nominal Capacity
20-hr. (2.75A to 10.50 volts) .......................................................... 55.0 AH
10-hr. (5.1A to 10.50 volts) ............................................................. 51.0 AH
5-hr. (8.8A to 10.20 volts) ............................................................ 44.0 AH
1-hr. (30.6A to 9.00 volts) ............................................................ 30.6 AH
15-min. (96A to 9.00 volts) ..................................................................24.0 AH
Approximate Weight ......................................................... 36.0 lbs. (16.33 kg)
Energy Density (20-hr. rate) .............................. 1.64 W-h/in3 (100.30 W-h/l)
Specifi c Energy (20-hr. rate) .............................. 17.65 W-h/lb (38.91 W-h/kg)
Internal Resistance (approx.) ........................................................ 7 milliohms
Max Discharge Current (7 Min.) ............................................. 165.0 amperes
Max Short-Duration Discharge Current (10 Sec.) ................ 410.0 amperes
Shelf Life (% of nominal capacity at 68°F (20°C))
1 Month ...................................................................................................... 97%
3 Months ..................................................................................................... 91%
6 Months .................................................................................................... 83%
Operating Temperature Range
Charge .. ........................................................... -4°F (-20°C) to 122°F (50°C)
Discharge ....................................................... -40°F (-40°C) to 140°F (60°C)
Case ...................................................................................................... ABS Plastic
Power-Sonic Chargers ............................................................PSC-1210000A-C
PS-12550
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To ensure safe and effi cient operation always refer to the latest edition of our Technical Manual, as published on our website.
All data subject to change without notice.
Terminals (mm)
U: Universal terminals:
Heavy-duty posts with
‘nut & bolt’ fasteners
•
12 Volt 55.0 AH
L: 9.04 (230) W: 5.45 (138) H: 8.15 (207) HT: 8.98 (228)
CORPORATE OFFICE • 7550 Panasonic Way • San Diego, CA 92154 • USA • Tel: +1-619-661-2020 • Fax: +1-619-661-3650
Charging
Cycle Applications: Limit initial current to 16.5A. Charge until battery voltage
(under charge) reaches 14.4 to 14.7 volts at 68°F (20°C). Hold at 14.4 to 14.7
volts until current drops to under 550mA. Battery is fully charged under these
conditions, and charger should be disconnected or switched to “oat” voltage.
“Float” or “Stand-By” Service: Hold battery across constant voltage source of
13.5 to 13.8 volts continuously. When held at this voltage, the battery will seek its
own current level and maintain itself in a fully charged condition.
Note: Due to the self-discharge characteristics of this type of battery, it is
imperative that they be charged within 6 months of storage, otherwise permanent
loss of capacity might occur as a result of sulfation.
Chargers
Power-Sonic offers a wide range of chargers suitable for batteries up to 100AH.
Please refer to the Charger Selection Guide in our specication sheets for “C-Series
Switch Mode Chargers” and “Transformer Type A and F Series”. Please contact our
Technical department for advice if you have difculty in locating suitable models.
Capacity Retention Ratio (%)
Standing Period (Months)
100
80
60
40
0
0 2 4 6 8 10 12 14 16 18 20
40oC
(104oF)
30oC
(86oF)
20oC
(68oF)
5oC
(41oF)
Charging is not
necessary unless
100% of capacity
is required.
Charging before
use is necessary
to help recover
full capacity.
Charge may fail
to restore full
capacity. Do not
let batteries reach
this state.
Discharge Characteristics
Discharge Time vs. Discharge Current
Shelf Life & Storage
PS-12550 12 Volt 55.0 AH
CUSTOMER SERVICE
Tel: +1-619-661-2030
Fax: +1-619-661-3648
customer-service@power-sonic.com
INTERNATIONAL SALES
Tel: +1-650-364-5001
Fax: +1-650-366-3662
battery@power-sonic.com
DOMESTIC SALES
Tel: +1-619-661-2020
Fax: +1-619-661-3650
national-sales@power-sonic.com
TECHNICAL SUPPORT
Tel: +1-619-661-2020
Fax: +1-619-661-3648
support@power-sonic.com
®
Contact Information www.power-sonic.com
Further Information
Please refer to our website www.power-sonic.com for a complete range of useful
downloads, such as product catalogs, material safety data sheets (MSDS), ISO
certication, etc..
0309 1M
13.0
12.0
11.0
10.0
9.0
8.0
14.0
Constant Power Discharge Ratings
MODEL FINAL
VOLTAGE
WATTS PER CELL @ 25° C
5 MIN 10 MIN 15 MIN 20 MIN 30 MIN 45 MIN 60 MIN
PS-12550
1.75 320 210 184 153 115 87 72
1.70 342 225 190 158 118 89 73
1.67 354 230 194 160 120 90 74
Terminal Voltage (V)
Ambient Temperature 20oC (68oF)
1.2 2.4 6 12 24 36 48 1 2 4 6 8 10 20 4 0
Discharge Time
Final
Voltage
min h
2.75
5.5
11
27.5
55
110
2.75 5.5 11 27.5 55 110
Discharge Current (A)
20
15
10
5
2
1
30
10
5
Discharge Time
40oC (104oF)
20oC (68oF)
0oC (32oF)
min h
10.2V
9.6V
9.0V
8.1V
Final
Voltage
10.5V
