Battery Charging; Troubleshooting - Ezgo 2010 TXT 48 FLEET Owner's Manual

Read all of manual to become familiar with this vehicle. Pay attention to all NOTICES, CAUTIONS, WARNINGS and DANGERS.
within the plates. This condition is not reversible and will
cause permanent damage to the battery. In order to pre-
vent damage, the battery should be recharged. A hy-
drometer (P/N 50900-G1) can be used to determine the
specific gravity and therefore the state of charge of a
battery.
In winter conditions, the battery must be fully charged to
prevent the possibility of freezing. A fully charged bat-
tery will not freeze in temperatures above -75° F (-60°
C). Although the chemical reaction is slowed in cold
temperatures, the battery must be stored fully charged,
and disconnected from any circuit that could discharge
the battery. For portable chargers, disconnect the charg-
ing plug from the vehicle receptacle. For on-board
chargers, disconnect the charging harness from the bat-
teries. The batteries must be cleaned and all deposits
neutralized and removed from the battery case to pre-
vent self discharge. The batteries should be tested or
recharged at thirty day minimum intervals.
O O
F C
E
L
+15 -9
E
C
+5 -15
T
R
-5 -21
O
L
-15 -26
Y
-25 -32
T
E
-35 -37
T
-45 -43
E
M
-55 -48
P
E
-65 -54
R
-75 -60
A
T
-85 -65
U
R
-95 -71
E
1.140
1.100
1.120 1.160
SPECIFIC GRAVITY ELECTROLYTE FREEZING POINT
Fig. 20 Freezing Point of Electrolyte

BATTERY CHARGING

The battery charger is designed to fully charge the bat-
tery set. If the batteries are severely deep cycled, some
automatic battery chargers contain an electronic module
that may not activate and the battery charger will not
function. Automatic chargers will determine the correct
duration of charge to the battery set and will shut off
when the battery set is fully charged. Always refer to the
instructions of the specific charger used.
OPERATION AND SERVICE INFORMATION
1.180 1.220 1.260 1.300
1.200 1.240 1.280
Owner's Guide
Before charging, the following should be observed:
Do not overfill batteries. The charging cycle will expel
electrolyte and result in component damage.
• The electrolyte level in all cells must be at the rec-
ommended level and cover the plates.
• The charging must take place in an area that is
well ventilated and capable of removing the
hydrogen gas that is generated by the charging
process. A minimum of five air exchanges per
hour is recommended.
• The charging connector components must be in
good condition and free from dirt or debris.
• The charger connector must be fully inserted into
the vehicle receptacle.
• The charger connector/cord set is protected from
damage and is located in an area to prevent
injury that may result from personnel running over
or tripping over the cord set.
• The charger is automatically turned off during the
connect/disconnect cycle and therefore no electri-
cal arc is generated at the DC plug/receptacle
contacts.
NOTICE
In some portable chargers, there will be a rattle present in the
body of the charger DC plug. This rattle is caused by an inter-
nal magnet contained within the charger plug. The magnet is
part of the interlock system that prevents the vehicle from
being driven when the charger plug is inserted in the vehicle
charging receptacle.

TROUBLESHOOTING

In general, troubleshooting will be done for two distinct
reasons. First, a battery that performs poorly and is out-
side of the manufacturers specification should be identi-
fied in order to replace it under the terms of the manu-
facturer's warranty. Different manufacturers have differ-
ent requirements. Consult the battery manufacturer or
the manufacturer's representative for specific require-
ments.
The second reason is to determine why a particular ve-
hicle does not perform adequately. Performance prob-
lems may result in a vehicle that runs slowly or in a vehi-
cle that is unable to operate for the time required.
A new battery must mature before it will develop its
maximum capacity. Maturing may take up to 100
charge/discharge cycles. After the maturing phase, the
older a battery gets, the lower the capacity. The only
way to determine the capacity of a battery is to perform
a load test using a discharge machine following manu-
facturer's recommendations.
B
B
Page 19