18
Battery Troubleshooting Chart
BATTERY TROUBLESHOOTING CHART
All readings below 9.3V but within 0.7V
Possible old batteries.
Go to hydrometer testing.
Replace any battery with a variation
of more than 50 points of specific gravity
between cells or has a cell with no
reading at all.
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2009-2011 Electric Precedent Maintenance and Service Manual
V ehicle not operating to expectation.
Battery Charger T
Reading below 6 amps and on-charge
voltage above 56 volts.
On-Charge V oltage T est
Any reading below 9.3 volts and not
within 0.7 volts of those batteries
above 9.3 volts, replace battery
Entire battery set with specific gravity
readings below 1.250 is being
consistently undercharged.
Evaluate charging practices.
If discharge time is less than 60 minutes,
replace all batteries below 6.7 volts.
Figure 18-1 Battery Troubleshooting Chart
Fully Charge Batteries.
est
.
BATTERIES
Reading of 6 amps or more.
Check electrical system and charger
for problems.
SeeTroubleshooting Guide
If problem is not found, go to
on-charge voltage test.
All readings above 9.3V and within 0.7V .
Hydrometer T est
No apparent problems.
Discharge T est
If discharge time is 60 minutes or
more, problem is not with the batteries.