7-32 2002 Buell S3T: Electrical
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BATTERY LOAD TESTING
Load Test
The load test measures battery performance under full
current load and is the best indicator of battery condition. To
load test the battery, proceed as follows:
CAUTION
Load testing a discharged battery can result in perma-
nent battery damage.
1. Always fully charge the battery before testing or test
readings will be incorrect. See CHARGING BATTERY.
Load testing a discharged battery can also result in per-
manent battery damage.
2. After charging, allow battery to stand for at least one
hour before testing.
11WARNING1WARNING
Always turn the battery load tester OFF before connect-
ing the tester cables to the battery terminals. Connecting
tester cables with the load tester ON could cause a spark
resulting in a battery explosion which could result in
death or serious injury.
3. Connect tester leads to battery posts and place induction
pickup over negative (black) cable. See Figure 7-42.
CAUTION
To avoid load tester and/or battery damage, do not leave
the load tester switch turned ON for more than 20 sec-
onds.
4. Referencing Table 7-7, load battery at 50% of CCA rating
using the load tester. Voltage reading after 15 seconds
should be 9.6V or more at 70°F. (21°C).
11WARNING1WARNING
Always turn the battery load tester OFF before discon-
necting the tester cables from the battery terminals. Dis-
connecting tester cables with the load tester ON could
cause a spark resulting in a battery explosion which
could result in death or serious injury.
1. Install the battery on the motorcycle. See BATTERY,
INSTALLATION AND CONNECTION.
BATTERY CABLE ROUTING
Positive battery cable runs from starter post to positive bat-
tery terminal. Negative battery cable runs from frame to neg-
ative battery terminal. See Figure 7-35.
Table 7-6. Battery Load Test
COLD CRANKING
AMPERAGE (CCA)
100% 50%
SPORT 270 135
Figure 7-34. Load Test Battery
Load
Tester
Induction
Pickup
f1731x8x
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