Specification Sheet

Absorbant Glass Mat (AGM) technology for superior performance. Valve regulated, spill proof construction allows safe
operation in any position. Approved f
Sealed Lead-Acid Battery
L: 7.72in (196.1 mm)
W: 6.50in (165.1mm)
H: 6.89in (175 mm)
TH: 7.17in (182.1 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. (2.50A)
10-hr. (4.65A)
5-hr. (8.50A)
1-hr. (30.0A)
Approximate Weight
Internal Resistance (approx.)
Shelf Life (% of normal capacity at 68º F (20º C)
3 Months 6 Months 12 Months
Temperature Dependancy of Capacity
104º F 77º F
12 volts
50.0 Ah
15 A or smaller
14.6 - 14.8 V
77º F (25º C)
(20 hour rate)
46.5 Ah
42.5 Ah
30.0 Ah
30.2 lbs (13.7 kgs)
11 m1
91% 83% 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
UPG No. 45977
Maintenance-Free
UB12500
7.72 (196)
6.89 (175)
7.17 (182.1)
(6.50 (165)
5MIN 10MIN 15MIN 30MIN 1HR 2HR 3HR 4HR 5HR 8HR 10HR 20HRF.V/Time
158.2 115.4 81.2 49.2 25.7 15.0 11.0 8.6 7.1 5.0 4.5 2.59.60V
139.4 105.2 72.7 46.6 24.1 14.3 10.7 8.3 6.9 4.9 4.4 2.510.20V
134.2 100.0 68.4 45.3 23.5 13.9 10.4 8.2 6.8 4.8 4.3 2.510.50V
129.1 94.9 64.1 44.0 22.7 13.6 10.2 8.1 6.7 4.7 4.3 2.310.80V
124.0 89.8 59.9 42.8 21.8 13.3 9.8 7.8 6.5 4.6 4.1 2.211.10V
Constant Current Discharge Characteristics Unit:A (25°C, 77°F)
5MIN 10MIN 15MIN 30MIN 1HR 2HR 3HR 4HR 5HR 8HR 10HR 20HRF.V/Time
1679.6 1268.4 862.7 522.0 297.1 173.1 127.4 99.2 81.7 57.7 52.2 28.19.60V
1547.1 1167.5 806.7 517.3 279.2 165.4 124.0 96.6 64.2 56.4 50.9 27.410.20V
1522.3 1134.6 775.5 513.9 270.2 161.6 121.0 94.9 79.1 56.0 50.0 27.010.50V
1502.7 1104.7 746.4 512.6 262.9 158.2 118.4 93.2 77.8 54.7 49.6 26.910.80V
1475.3 1068.3 712.2 508.7 259.5 157.7 117.1 92.8 77.4 54.3 48.3 26.111.10V
Constant Power Discharge Characteristics Unit:W (25°C, 77°F)
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)
488 S. Royal Lane Coppell, Texas 75019 P 469.892.1122 T 866.892.1122 F 469.892.1123 [e-mail]
www.upgi.com
All specifications subject to change without notice.
L1705Copyright© 2017 Universal Power Group Inc. All rights reserved.