Club Car 2008-2011 Maintenance And Service Manual page 282

10
HIGH FREQUENCY CHARGER (ONBOARD)
Interpreting Discharge Test Results: 12-Volt Batteries
1. If discharge time is 60 minutes or higher, the problem is not with the batteries.
2. If discharge times are low (less than 60 minutes), replace batteries below 10.05 volts.
BATTERY VOLTAGES
1 2
10.50 V 10.50 V
10.60 V 10.60 V
10.8 V 10.8 V
3. In general, battery sets that discharge in less than 60 minutes at 78 °F (25.6 °C) on the discharge test
will typically not hold a charge for an entire work shift. However, discharge time is dependent on the elec-
trolyte temperature. The table shown gives the discharge times, at various temperatures, of a set of bat-
teries that delivers 62 minutes at 80 °F (26.7 °C).
ELECTROLYTE
TEMPERATURE
40-49 °F
(4-9 °C)
50-59 °F
(10-15 °C)
60-64 °F
(16-18 °C)
65-69 °F
(18-21 °C)
70-74 °F
(21-23 °C)
75-79 °F
(24-26 °C)
80-84 °F
(27-29 °C)
Page 10-16 2008-2011 Domestic Battery Charger Maintenance and Service Manual
BATTERY CONDITION
3 4
10.50 V 10.50 V Excellent
10.83 V 9.75 V Battery no. 4 is near end of useful life
10.01 V 9.41 V Battery nos. 3 and 4 are near end of useful life
DISCHARGE TIME TO
SHUT-OFF POINT
40 Minutes
45 Minutes
50 Minutes
54 Minutes
57 Minutes
60 Minutes
62 Minutes
ELECTROLYTE DISCHARGE TIME TO
TEMPERATURE
85-89 °F
(29-32 °C)
89-99 °F
(32-37 °C)
100-109 °F
(38-43 °C)
110-119 °F
(43-48 °C)
120-129 °F
(49-54 °C)
130-150 °F
(54-66 °C)
*****
Test Procedures
SHUT-OFF POINT
64 Minutes
66 Minutes
68 Minutes
70 Minutes
72 Minutes
74 Minutes
*****