Battery Troubleshooting Examples: 6-Volt Batteries - Club Car 2008-2011 Maintenance And Service Manual

HIGH FREQUENCY CHARGER (ONBOARD)

BATTERY TROUBLESHOOTING EXAMPLES: 6-Volt Batteries

The following information represents a few examples of troubleshooting battery problems.
Example 1
Vehicle no. 68 was suspected of having a bad battery due to its performance. As a result, the battery charger
test was performed. After a full charge, the battery charger ammeter read 8.0 amps. Next, the on-charge volt-
age test was performed and the following results were recorded:
BATTERY NO. 1
On-Charge Voltage 7.40 V
*Battery no. 3 appears suspect. Batteries no. 1 and 4 are also suspect. Next, a hydrometer test (flooded lead-
acid batteries only) or discharge test should be conducted on all batteries.
Hydrometer test results (flooded lead-acid batteries only):
CELL NUMBER
Cell 1 (Positive Post) 1.200*
Cell 2 1.285
Cell 3 (Negative Post) 1.265
*After the hydrometer test, it appears that battery no. 1 is the problem. Next, the discharge test was per-
formed.
Discharge test results:
BATTERY NO. 1
Discharge Voltage 3.80* V
*After a discharge test which lasted 45 minutes, battery no. 1 is clearly shown to be the problem. Battery no.
4 should be watched a little more closely but appears to be okay. Battery no. 1 should be replaced with a bat-
tery that has about the same age and usage as the other batteries in the set.
Example 2
Vehicle no. 70 was also suspected of having a bad battery due to its performance. The battery charger test
showed 7.0 amps after a full charge. After confirming there were no problems with the electrical system,
charger or brakes, the on-charge voltage was recorded as follows:
BATTERY NO. 1
On-Charge Voltage 7.40 V
*Battery no. 2 was immediately suspected as the problem. After checking battery no. 2 with a hydrometer, it
was discovered that the negative post cell was completely dead. Battery no. 2 should be replaced with a bat-
tery that has the same age and usage as the other batteries in the set.
2 3 4
7.60 V 7.10* V 7.40 V
BATTERY NUMBER
1 2 3 4
1.265 1.300 1.250
1.275 1.290 1.270
1.270 1.275 1.265
2 3 4
5.25 V 5.65 V 5.25 V
2 3 4
7.10* V 7.45 V 7.6 V
2008-2011 Domestic Battery Charger Maintenance and Service Manual
5 6 7
7.70 V 7.80 V 7.80 V
5 6 7
1.280 1.260 1.260 1.260
1.295 1.265 1.265 1.265
1.280 1.275 1.275 1.275
5 6 7
5.50 V 5.60 V 5.70 V
5 6 7
7.65 V 7.50 V 7.55 V
Test Procedures
8
7.80 V
8
8
5.30 V
8
7.65 V
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