Ac Voltage; Troubleshooting; Hydrometer - Cushman Titan XD Owner's Manual

MAINTENANCE
Read all of this manual to become thoroughly familiar with this vehicle. Pay particular attention to all Notices, Cautions, Warnings, and Dangers.
• The charger is automatically turned off during the connect/disconnect cycle and therefore no electrical arc is gen-
erated 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 mag-
net contained within the charger plug. The magnet is part of the interlock system that prevents the vehicle from being driven when the

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

5
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 warranty. Dif-
ferent manufacturers have different requirements. Consult the battery manufacturer or the manufacturer's representative
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 capacity
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 battery
can be removed and replaced. At this point there is nothing that can be done to salvage the battery; however, the individ-
ual 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 measuring the spe-
cific 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 hydrometer with a
built in thermometer that is designed for testing bat-
teries.
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 the
electrolyte weighs 1.280 times the weight of the same volume
of water. A fully charged battery will test at 1.275 - 1.280 while a discharged battery will read in the 1.140 range.
Do not perform a hydrometer test on a battery that has just been watered. The battery must go through at least one charge
and discharge cycle in order to permit the water to adequately mix with the electrolyte.
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charger plug is inserted in the vehicle charging receptacle.
Bulb
Cylinder
Thermometer
Add to Float
Reading
Subtract
from Float
Reading
Hydrometer
Float
Weight