BATTERIES 7
en-61
7.14 BUFFER BATTERY WIRING _________________________________________________
Refer to the following diagram for buffer battery wiring.
After battery cables are properly installed and
torqued, the use of standard battery terminal anti
corrosion spray is recommended.
Figure 7E
7.15 BUFFER BATTERY TESTING ________________________________________________
Testing batteries can be complex and there are many
application specific variables that cannot be considered
in one simple test. This section is a guide to help you
determine the over all condition of the buffer batteries.
Contact you Jacobsen Dealer for assistance.
1.
Test Preparation
a.
Check that battery cables are in good condition.
Replace damaged or broken cables.
b.
Check that all terminal connections are tightened
to the proper torque.
c.
Fully charge the buffer batter pack.
d.
Disconnect the large blue Anderson plug to
remove all load from the battery pack.
e.
Let the batteries rest for at least 1/2 to 1 hour
after the charge is complete.
2.
Open circuit voltage test.
a.
Check and record open circuit voltage of each
battery. All batteries in a good set should be
above 12.7 volts when fully charged.
b.
If all of the batteries are below 12.1 volts, the
buffer battery pack has failed, Replace the entire
set of batteries.
Discharge Test Temperature Correction
Below 80° (26.7° C)
Above 80° (26.7° C)
° F
° C
Correction
Factor
° F
° C
Correction
Factor
75
23.9
1.025
85
29.4
0.975
70
21.1
1.050
90
32.2
0.950
65
18.3
1.075
95
35
0.925
60
15.6
1.100
100
37.7
0.900
55
12.8
1.125
105
40.6
0.875
50
10
1.150
110
43.3
0.850
45
7.2
1.175
115
46.1
0.825
40
4.4
1.200
120
48.9
0.800
125
51.7
0.775
130
54.4
0.750
135
57.2
0.725
Battery Discharge Rates
(48 Volt System)
Discharge time at 80° (26.7° C)
Battery Type
Number or complete discharge and
recharge cycles from new
0-50 Cycles
50 Plus Cycles
Trojan T890
95 minutes
132 minutes
WARNING
Use care when using tools around the battery
terminals, and when possible, use insulated tools.
Always disconnect power connectors before
connecting or disconnecting battery cables.
!
