2002 Buell S3T: Electrical 7-31
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CAUTION
Always remove the battery from the motorcycle before
charging. Accidental electrolyte leakage will damage
motorcycle parts.
The figures listed assume that the battery is charging at room tem-
perature. If warmer than room temperature, use a slightly shorter
charging time. If colder, use a slightly longer charging time.
The use of constant current chargers to charge sealed maintenance-
free batteries is not recommended. Any overcharge will cause dry-
out and premature battery failure. If a constant current charger is the
only type available, do not exceed the charge times listed above and
do not continue charging the battery if it gets hot. When charging,
never exceed 15 volts for more than 30 minutes.
2. Remove the battery from the motorcycle. See BATTERY,
DISCONNECTION AND REMOVAL. Place the battery
on a level surface.
11WARNING1WARNING
Always unplug or turn OFF the battery charger before
connecting the charger clamps to the battery. Connect-
ing clamps with the charger ON could cause a spark
resulting in a battery explosion which could result in
death or serious injury.
CAUTION
Do not reverse the charger connections described in the
following steps or the charging system of the motorcycle
could be damaged.
3. Connect the red battery charger lead to the positive
(+) terminal of the battery.
4. Connect the black battery charger lead to the negative
(–) terminal of the battery.
NOTE
If the battery is still in the vehicle, connect the negative lead
to the chassis ground. Be sure that the ignition and all electri-
cal accessories are turned off.
5. Step away from the battery and turn on the charger. See
the charging instructions in Table 7-5.
Always unplug or turn OFF the battery charger before
disconnecting the charger clamps from the battery. Dis-
connecting clamps with the charger ON could cause a
spark resulting in a battery explosion which could result
in death or serious injury.
6. After the battery is fully charged, disconnect the black
battery charger lead to the negative (–) terminal of the
battery.
7. Disconnect the red battery charger lead to the positive
(+) terminal of the battery.
8. Mark the charging date on the battery.
9. Perform a load test to determine the condition of the bat-
tery. See BATTERY TESTING, LOAD TEST.
Table 7-5. Battery Charging Rates/Times
Battery
Amp-Hour
State of Charge
3
Amp Charger
6
Amp Charger
10
Amp Charger
20
Amp Charger
Voltage Reading % of Charge
SPORT
19
12.8 V 100% ----
12.6 V 75% 1.75 hours 50 minutes 30 minutes 15 minutes
12.3 V 50% 3.5 hours 1.75 hours 1 hour 30 minutes
12.0 V 25% 5 hours 2.5 hours 1.5 hours 45 minutes
11.8 V 0% 6 hours,
40 minutes
3 hours,
20 minutes
2 hours 1 hour
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