Club Car 2008-2011 Maintenance And Service Manual page 279

HIGH FREQUENCY CHARGER (ONBOARD)
Interpreting the Results of the Hydrometer Test: 8-Volt Batteries
The approximate state of charge can be determined from the following table:
SPECIFIC GRAVITY
(TEMPERATURE
CORRECTED)
1.250-1.280
1.220-1.240
1.190-1.210
1.160-1.180
If the difference between the cells is 0.020 or more, the low cell should be suspected. It may require a catch-
up charge or it may be a weak cell. When the variations between cells reach 0.050 or more, the battery with
the low cell should be replaced.
VEHICLE BATTERY ELECTROLYTE
NO. NO. TEMPERATURE
12 1 20 °F (-6.6 °C)
35 6 90 °F (32.2 °C)
54 3 50 °F (10 °C)
69 5 80 °F (26.7 °C)
38 2 100 °F (37.8 °C)
22 4 80 °F (26.7 °C)
APPROXIMATE
STATE OF CHARGE
100%
75%
50%
25%
CORRECTION
FACTOR
CELL 1
1.275 –0.024
– 0.024
= 1.251
1.155 + 0.004
+ 0.004
= 1.159
1.260 –0.012
– 0.012
= 1.248
1.250 – 0
0.000
= 1.250
1.200 + 0.008
+ 0.008
= 1.208
1.240 – 0
0.000
= 1.240
2008-2011 Domestic Battery Charger Maintenance and Service Manual
CORRECTED SPECIFIC GRAVITY
CELL 2 CELL 3
1.280 – 0.024 1.280 – 0.024 1.280 – 0.024
= 1.256 = 1.256
1.165 + 0.004 1.160 + 0.004 1.165 – 0.004
= 1.169 = 1.164
1.200 – 0.012 1.270 – 0.012 1.270 – 0.012
= 1.188 = 1.258
1.255 – 0 1.230 – 0
= 1.255 = 1.230
1.180 + 0.008 1.170 + 0.008 1.180 + 0.008
= 1.188 = 1.178
1.245 – 0 Float does
= 1.245 not rise
Test Procedures
REQUIRED
ACTION
CELL 4
Sound Battery –
= 1.256 Fully Charged
Discharged
Battery –
= 1.169
Recharge
Bad no. 2 Cell
= 1.258
Weak no. 3
1.250 – 0
Cell – Catch-up
= 1.250
Charge
Discharged
Battery –
= 1.188 Recharge and
Recheck
no.3 Cell Dead
1.250 – 0
– Replace Bat-
= 1.250
tery
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