Sealed Rechargeable
Battery
12 Volt 2.8 Amp. Hr.
MODEL PS-1228
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
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)
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
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•
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Performance Specifi cations
Nominal Voltage ........................................................................ 12 volts (6 cells)
Nominal Capacity
20-hr. (140mA to 10.50 volts) ........................................................ 2.80 AH
10-hr. (250mA to 10.50 volts) ....................................................... 2.50 AH
5-hr. (480mA to 10.20 volts) ....................................................... 2.40 AH
1-hr. (1.7A to 9.00 volts) .............................................................. 1.70 AH
15-min. (5.3A to 9.00 volts) ................................................................ 1.33 AH
Approximate Weight ........................................................... 2.60 lbs. (1.18 kg)
Energy Density (20-hr. rate) ................................ 1.29 W-h/in3 (78.80 W-h/l)
Specifi c Energy (20-hr. rate) ............................. 12.92 W-h/lb (28.49 W-h/kg)
Internal Resistance (approx.) ...................................................... 60 milliohms
Max Discharge Current (7 Min.) .................................................. 8.4 amperes
Max Short-Duration Discharge Current (10 Sec.) .................. 28.0 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-12300A, 12500A
PS-1228
www.power-sonic.com
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)
F1 - Quick disconnect
tabs, 0.187” x 0.032”-
Mate with AMP. INC.
FASTON “187” series
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12 Volt 2.8 AH
L: 5.24 (133) W: 1.30 (33) H: 3.82 (97) HT: 4.09 (104)
(2 pages)
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