Club Car Carryall 300 2021, Maintenance And Service Manual, Page: 185 / 596

ELECTRIC VEHICLE - ELECTRICAL SYSTEM
TROUBLESHOOTING Test Procedures
12
TEST PROCEDURE 2 – 48-Volt Battery Pack Voltage Under Load
See General Warnings on page 1-1.
NOTE: This is a voltage test.
1. If necessary, see Testing Basics on page 12-12.
2. Be sure the batteries are fully charged and that the electrolyte level is correct in all cells.
3. Connect the tester leads to the positive (+) post of battery no.1 and negative (–) post of battery no.6 (Figure
12-3, Page 12-15) .
TES
TER
(Viewed from driver side of vehicle)
1. RED probe to battery no. 1 (+).
2. BLACK probe to battery no. 6 (-).
2992
Figure 12-3 Battery Discharge Test
4. Turn the discharge machine on and record the voltage reading of battery pack while under load.
5. A fully charged set of batteries in good condition should read between 46 and 49 volts while under load.
6. A reading of 32 to 46 volts indicates discharged or failed batteries. Each battery should be checked with a
multimeter while under load.
See following NOTE.
NOTE: If a 48-volt set of batteries is down in the 32 to 38 volt range, the discharge machine will activate but it will
think it is testing a 36-volt battery set.
7. A reading of 31.5 volts or less will not activate discharge machine. If the voltage of the batteries is below 32–
volts, the batteries are deeply discharged or have failed.
8. Recording the battery pack voltage reading while under load provides a more accurate diagnosis of the condition
of the batteries. When the discharge machine is ON, it places the battery pack under load and many times
can help determine if one or more batteries in the set have failed. Testing battery voltage while the batteries
are not under load will not always indicate the true condition of the batteries. For more information about the
batteries, refer to 14
Electric Vehicle - Batteries .
TEST PROCEDURE 3 – Run/Tow Switch
See General Warnings on page 1-1.
NOTE: This is a voltage test.
2021 Carryall 300 Maintenance and Service Manual Page 12-15