20180336 Battery 12v 8ah UB1280Absorbant Glass Mat (AGM) technology for superior performance. Valve regulated, spill proof construction allows safe
number MH 20567.
Sealed Lead-Acid Battery
L: 5.94in (150.9 mm)
W: 2.56in (65 mm)
H: 3.70in (94 mm)
TH: 3.94in (100.1 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 71906 P 469.892.1122 T 866.892.1122 F 469.892.1123 sales@upgi.com
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Nominal Voltage
Nominal Capacity
20-hr. (0.40A)
10-hr. (0.74A)
5-hr. (1.36A)
1-hr. (4.8A)
Approximate Weight
Internal Resistance (approx.)
Shelf Life (% of normal capacity at 77º F (25º C))
3 Months 6 Months 12 Months
12 volts
8.0 Ah
2.4 A or smaller
14.6 - 14.8 V
77º F (25º C)
7.44 Ah
6.80 Ah
4.8 Ah
4.96 lbs (2.25 kgs)
23m
91% 82% 64%
Charge Method (Constant Voltage)
Cycle Use
Float Use
Initial Current
Control Voltage
13.6 - 13.8 VControl Voltage
(Repeating Use)
Specification
Physical Dimensions: in (mm)
Terminals
F1511
All specifications subject to change without notice.
UPG No. D5743
Maintenance-Free
UB1280
5.94 (151)3.70 (94)2.56 (65)3.94 (100)Temperature Dependancy 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)
Discharge Characteristics
(Minute) (Hour)
Discharge timeCell voltage (V/Cell)Discharge Time vs. Discharge Current
Discharge Current = CA X Nominal Capacity(Minute)(Hour)Duration of DischargeDue to continuous improvements to our products, product may vary slightly from depiction.
Copyright 2016 Universal Power Group, Inc. All rights reserved.
UPG No. D5743
Maintenance-Free
UB1280
Charge Voltage(V/Cell)Application Temperature Set Point Allowable Range
Max.Charge Current
Cycle Use
25 (77 )2.45 2.40~2.50
Standby 25 (77 )2.28 0.30C2.27~2.30
Final Discharge
Voltage V/Cell
1.75 1.70 1.60 1.30
Discharge
Current(A)0.2C>(A) 0.2C<(A)<0.5C 0.5C<(A)<1.0C (A)>1.0C
Charge Current & Final Discharge Voltage
Cycle Life vs Depth of DischargeShelf Life & Storage
Effect of Temperature on CapacityOpen Circuit Voltage vs Residual Capacity
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488 S. Royal Lane Coppell, Texas 75019 P 469.892.1122 T 866.892.1122 F 469.892.1123 sales@upgi.com