HIGH FREQUENCY CHARGER (ONBOARD)
Test Procedures
Page 10-14
2008-2011 Domestic Battery Charger Maintenance and Service Manual
10
Interpreting the Results of the Hydrometer Test: 6-Volt Batteries
The approximate state of charge can be determined from the following table:
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.
TEST PROCEDURE 5 – DISCHARGE TEST – ALL BATTERIES
If the previous tests have failed to identify the problem, conduct a discharge test. The discharge test comes
closest to simulating actual vehicle operating conditions by continuously drawing current from the batteries
until voltage drops to 42.0 volts.
The discharge test is the hardest test on the batteries and the most time-consuming to perform. Use the bat-
tery discharge tester (CC P/N 101831901).
Performing the Discharge Test
1. Be sure the batteries are fully charged and that the electrolyte level is correct in all cells.
2. Connect the tester leads to the positive (+) post of battery no.1 and negative (–) post of battery no. 4 last
(Style A and B 4 x 12-Volt Precedent)
(Figure 10-5, Page 10-15)
and
(Figure 10-6, Page 10-15)
or no.
6 last (Style C 6 x 8-Volt Precedent)
(Figure 10-7, Page 10-15)
.
3. Check and record the electrolyte temperature of the battery packs. Check cell no. 2 (second cell from
positive post) in each battery.
SPECIFIC GRAVITY
(TEMPERATURE
CORRECTED)
APPROXIMATE
STATE OF CHARGE
1.250-1.280
100%
1.220-1.240
75%
1.190-1.210
50%
1.160-1.180
25%
VEHICLE
NO.
BATTERY
NO.
ELECTROLYTE
TEMPERATURE
CORRECTION
FACTOR
CORRECTED SPECIFIC GRAVITY
REQUIRED
ACTION
CELL 1
CELL 2
CELL 3
12
1
20 °F (-6.6 °C)
– 0.024
1.275 –0.024
= 1.251
1.280 – 0.024
= 1.256
1.280 – 0.024
= 1.256
Sound Battery –
Fully Charged
35
6
90 °F (32.2 °C)
+ 0.004
1.155 + 0.004
= 1.159
1.165 + 0.004
= 1.169
1.160 + 0.004
= 1.164
Discharged
Battery –
Recharge
54
3
50 °F (10 °C)
– 0.012
1.260 –0.012
= 1.248
1.200 – 0.012
= 1.188
1.270 – 0.012
= 1.258
Bad no. 2 Cell
69
5
80 °F (26.7 °C)
0.000
1.250 – 0
= 1.250
1.255 – 0
= 1.255
1.230 – 0
= 1.230
Weak no. 3
Cell – Catch-up
Charge
38
2
100 °F (37.8 °C)
+ 0.008
1.200 + 0.008
= 1.208
1.180 + 0.008
= 1.188
1.170 + 0.008
= 1.178
Discharged
Battery –
Recharge and
Recheck
22
4
80 °F (26.7 °C)
0.000
1.240 – 0
= 1.240
1.245 – 0
= 1.245
Float does
not rise
no.3 Cell Dead
– Replace Bat-
tery
Summary of Contents for 2008-2011
Page 2: ......
Page 12: ...Page x 2008 2011 Domestic Battery Charger Maintenance and Service Manual ...
Page 18: ...1 ...
Page 28: ...2 ...
Page 64: ...3 ...
Page 100: ...4 ...
Page 132: ...5 ...
Page 168: ...6 ...
Page 204: ...7 ...
Page 296: ...Club Car R NOTES ...
Page 298: ......
Page 299: ......