UPG Data Sheet
Absorbant Glass Mat (AGM) technology for superior performance. Valve regulated, spill proof construction allows safe
operation in any position. Approved for transport by air. D.O.T., I.A.T.A., F.A.A. and C.A.B. certied. U.L. recognized
under le number MH 20567.
Sealed Lead-Acid Battery
L: 9.04 in (230 mm)
W: 5.50 in (140 mm)
H: 8.30 in (211 mm)
TH: 8.45 in (215 mm)
Tolerances are +/- 0.04 in. (+/- 1mm)
and +/- 0.08 in. (+/- 2mm) for height
dimensions. All data subject to
change without notice.
488 S. Royal Lane Coppell, Texas 75019 P 469.892.1122 T 866.892.1122 F 469.892.1123 sales@upgi.com
www.upgi.com
Nominal Voltage
Nominal Capacity
20-hr. (2.75A)
10-hr. (5.12A)
5-hr. (9.35A)
1-hr. (33.00A)
Approximate Weight
Internal Resistance (approx.)
Shelf Life (% of normal capacity at 77º F (25º C))
3 Months 6 Months 12 Months
FR=Flame Retardant, ABS, UL 94V-0
Temperature Dependancy of Capacity
104º F 77º F
12 volts
55 Ah
16.5 A or smaller
14.6 - 14.8 V
77º F (25º C)
(20 hour rate)
51.15 Ah
46.75 Ah
33.00 Ah
37.0 lbs (16.8 kgs)
10m1
91% 82% 64%
102% 100% 85%
32º F 5º F
Charge Method
65%
(Constant Voltage)
Cycle Use
Float Use
Initial Current
Control Voltage
13.6 - 13.8 V
Control Voltage
(Repeating Use)
Specification
Physical Dimensions: in (mm)
Terminals
5MIN 10MIN 15MIN 30MIN 1HR 2HR 3HR 4HR 5HR 8HR 10HR 20HRF.V/Time
182.8 133.4 93.9 56.8 29.6 17.3 12.7 9.9 8.2 5.7 5.2 2.89.60V
161.0 121.5 84.0 53.8 27.9 16.5 12.4 9.6 8.0 5.6 5.0 2.710.20V
155.1 115.6 79.0 52.4 27.2 16.1 12.1 9.5 7.9 5.6 4.9 2.710.50V
149.2 109.7 74.1 50.9 26.2 15.7 11.8 9.3 7.7 5.4 4.9 2.710.80V
143.3 103.7 69.2 49.4 25.2 15.3 11.4 9.0 7.5 5.3 4.7 2.511.10V
Constant Current Discharge Characteristics Unit:A (25°C, 77°F)
5MIN 10MIN 15MIN 30MIN 1HR 2HR 3HR 4HR 5HR 8HR 10HR 20HRF.V/Time
1940.9 1465.7 996.9 603.2 343.3 200.1 147.2 114.6 94.4 66.7 60.3 32.59.60V
1787.8 1349.1 932.2 597.7 322.6 191.2 143.3 111.6 94.1 65.2 58.8 31.610.20V
1759.1 1311.1 896.1 593.8 312.2 186.7 139.8 109.7 91.4 64.7 57.8 31.210.50V
1736.4 1276.5 862.5 592.3 303.8 182.8 136.8 107.7 89.9 63.2 57.3 31.110.80V
1704.8 1234.5 823.0 587.9 299.9 182.3 135.4 107.2 89.4 62.7 55.8 30.111.10V
Constant Power Discharge Characteristics Unit:W (25°C, 77°F)
All specifications subject to change without notice.
F1823-1
UPG No. 45503
Maintenance-Free
UB12550FR
AGM Operational Temperature
AGM Storage Temperature
UPG Recommends
Characteristics
Charge
Discharge
Due to continuous improvements to our products, product may vary slightly from depiction.
Copyright 2018 Universal Power Group, Inc. All rights reserved.
(0 C to 40 C)32 F to 104 F
5 F to 113 F
5 F to 104 F
(-15 C to 45 C)
(-15 C to 40 C)
32 F to 86 F (0 C to 30 C)
9.04 (230)
8.30 (211)
8.45 (215)
5.50 (140)