Ac Voltage; Troubleshooting; Hydrometer - Ezgo TXT Fleet Electric Owner's Manual

Read all of this manual to become thoroughly familiar with this vehicle. Pay particular attention to all Notices, Cautions, Warnings, and Dangers.
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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.
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The charging connector components must be in good condition and free from dirt or debris.
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The charger connector must be fully inserted into the vehicle receptacle.
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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.
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The charger is automatically turned off during the connect/disconnect cycle and therefore no electrical arc is
generated at the DC plug/receptacle contacts.
In some portable chargers, there will be a rattle present in the body of the charger DC plug. This rattle is caused by
an internal 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.

AC Voltage

Battery charger output is directly related to the input voltage. If multiple vehicles are receiving an incomplete charge in
a normally adequate time period, low AC voltage could be the cause and the power company should be consulted.

Troubleshooting

In general, troubleshooting will be done for two distinct reasons. First, a battery that performs poorly and is outside of
the manufacturers specification should be identified in order to replace it under the terms of the manufacturer's war-
ranty. Different manufacturers have different requirements. Consult the battery manufacturer or the manufacturer's rep-
resentative for specific requirements.
The second reason is to determine why a particular vehicle does not perform adequately. Performance problems may
result in a vehicle that runs slowly or in a vehicle 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 capac-
ity of a battery is to perform a load test using a discharge machine following manufacturer's recommendations.
A cost effective way to identify a poorly performing battery is to use a hydrometer to identify a battery in a set with a
lower than normal specific gravity. Once the particular cell or cells that are the problem are identified, the suspect bat-
tery can be removed and replaced. At this point there is nothing that can be done to salvage the battery; however, the
individual battery should be replaced with a good battery of the same brand, type and approximate age.

Hydrometer

A hydrometer (P/N 50900-G1) is used to test the state of
charge of a battery cell. This is performed by measuring the
density of the electrolyte, which is accomplished by measur-
ing the specific gravity of the electrolyte. The greater the
concentration of sulfuric acid, the more dense the electrolyte
becomes. The higher the density, the higher the state of
charge.
To prevent battery explosion that could result in
severe personal injury or death, never insert a
metal thermometer into a battery. Use a hydrom-
eter with a built in thermometer that is designed
for testing batteries.
Specific gravity is the measurement of a liquid that is com-
pared to a baseline. The baseline is water which is assigned
a base number of 1.000. The concentration of sulfuric acid
to water in a new golf car battery is 1.280 which means that
MAINTENANCE
Bulb
Cylinder
Thermometer
Add to Float
Reading
Subtract
from Float
Reading
Hydrometer
Float
Weight
43