Product Manual

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. certied. U.L. recognized
under le number MH 20567.
L: 12.05in (306.1 mm)
W: 6.61in (168 mm)
H: 8.19in (208 mm)
TH: 8.35in (212 mm)
Tolerances are +/- 0.04 in. (+/- 1mm)
and +/- 0.08 in. (+/- 2mm) for height
dimensions. All data subject to
change without notice.
Nominal Voltage
Nominal Capacity
20-hr. (4.50A)
10-hr. (8.37A)
5-hr. (15.3A)
1-hr. (54.0A)
Approximate Weight
Internal Resistance (approx.)
Shelf Life (% of normal capacity at 68º F (20º C)
3 Months 6 Months 12 Months
12 volts
90.0 Ah
27 A or smaller
14.6-14.8 V
77º F (25º C)
83.7 Ah
76.5 Ah
54.0 Ah
55.1 lbs (25 kgs)
7 m1
91% 83% 64%
Charge Method (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
Sealed Lead-Acid Battery
UPG No. 45823
Maintenance-Free
UB12900
5MIN 10MIN 15MIN 30MIN 1HR 2HR 3HR 4HR 5HR 8HR 10HR 20HR F.V/Time
309.3 225.7 158.8 96.1 50.2 29.3 21.5 16.7 13.8 9.7 8.8 4.7 9.60V
272.5 205.7 142.1 91.1 47.2 27.9 20.9 16.3 13.5 9.5 8.5 4.6 10.20V
262.5 195.6 133.8 88.6 46.0 27.3 20.4 16.1 13.4 9.4 8.4 4.6 10.50V
252.5 185.6 125.4 86.1 44.3 26.6 19.9 15.8 13.0 9.2 8.4 4.5 10.80V
242.4 175.6 117.0 83.6 42.6 25.9 19.2 15.3 12.7 8.9 7.9 4.3 11.10V
Constant Current Discharge Characteristics Unit:A (25°C, 77°F)
5MIN 10MIN 15MIN 30MIN 1HR 2HR 3HR 4HR 5HR 8HR 10HR 20HR F.V/Time
3284.6 2480.4 1687.0 1020.8 581.0 338.6 249.1 194.0 159.7 112.9 102.0 54.9 9.60V
3025.5 2283.1 1577.5 1011.6 545.9 323.5 242.4 188.9 125.5 110.4 99.5 53.5 10.20V
2977.0 2218.7 1516.5 1004.9 528.4 316.0 236.6 185.6 154.7 109.5 97.8 52.8 10.50V
2938.5 2160.2 1459.7 1002.4 514.1 309.3 231.6 182.2 152.2 107.0 97.0 52.6 10.80V
2885.0 2089.2 1392.8 994.8 507.5 308.5 229.1 181.4 151.3 106.2 94.5 51.0 11.10V
Constant Power Discharge Characteristics Unit:W (25°C, 77°F)
Temperature Dependency of Capacity
104 F (40 C) 77 F (25 C)
(20 hour rate)
102% 100% 85%
32 F (0 C) 5 F (-15 C)
65%
AGM Operational Temperature
AGM Storage Temperature
(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)
Charge
Discharge
(-15 C to 40 C)
Due to continuous improvements to our products, product may vary slightly from depiction.
12.05 (306.1)
8.19 (208)
8.35 (212)
6.61 (168)
488 S. Royal Lane Coppell, Texas 75019 P 469.892.1122 T 866.892.1122 F 469.892.1123 [e-mail]
www.upg i.com
All specifications subject to change without notice.
J2031-1
Copyright 2020 Universal Power Group Inc. All rights reserved.