Club Car Carryall 1, Maintenance And Service Manual Supplement, Page: 110 / 176

BATTERIES Battery Testing – 12 Volt
Page 14-14 2008-2011 IQ System Electric Vehicle Maintenance and Service Supplement
14
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.
DISCHARGE TEST
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
(Figure 14-7, Page 14-14) .
VEHICLE
NO.
BATTERY
NO.
ELECTROLYTE
TEMPERATURE
CORRECTION
FACTOR
CORRECTED SPECIFIC GRAVITY
REQUIRED
ACTION
CELL 1 CELL 2 CELL 3 CELL 4 CELL 5 CELL 6
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
1.275 –
0.024 =
1.251
1.280 –
0.024 =
1.256
1.280 –
0.024 =
1.256
Sound Battery – Fully
Charged
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
1.265 –
0.012 =
1.253
1.270 –
0.012 =
1.258
1.260 –
0.012 =
1.248
Bad no. 2 Cell
38 2
100 °F
(37.8 °C)
+.008
1.200 +
0.008 =
1.208
1.180 +
0.008 =
1.188
1.170 +
0.008 =
1.178
1.200 +
0.008 =
1.208
1.180 +
0.008 =
1.188
1.198 +
0.008 =
1.198
Discharged
Battery –
Recharge and
Recheck
22 4
80 °F
(26.7 °C)
.000
1.240 –
0
= 1.240
1.245 –
0
= 1.245
Float
does
not rise
1.235 –
0
= 1.235
1.250 –
0
= 1.250
1.240 –
0
= 1.240
no.3 Cell Dead
– Replace Battery
Figure 14-7 DS Villager 4 4x12-Volt Battery
Discharge Test
1. RED probe to battery no. 1 (+).
2. BLACK probe to battery no. 4 (-).
P
O
S
N
EG
P
O
S
N
E
G
P
O
S
N
E
G
P O
S
NEG
1
2
3
4
1
(+)
(–)
2
TESTER