Yamaha BT1100 2002 Service Manual page 93

14
13
12
11
10
100 75 50 30 2520
Condition of charge in battery (%)
Charging Ambient
temperature 20 °C
18
17
16
15
14
13
12
11
10
0 10 20 30
CHECKING AND CHARGING THE BATTERY
Ambient
temperature
20 °C
0
40 50 60 Time (minutes)
Check the open-circuit
voltage
3-39
WARNING
Do not quick charge a battery.
CAUTION:
• Make sure that the battery breather hose
and battery vent are free of obstructions.
• Never remove the MF battery sealing caps.
• Do not use a high-rate battery charger. They
force a high-amperage current into the bat-
tery quickly and can cause battery overheat-
ing and battery plate damage.
• If it is impossible to regulate the charging
current on the battery charger, be careful
not to overcharge the battery.
• When charging a battery, be sure to remove
it from the motorcycle (if charging has to be
done with the battery mounted on the
motorcycle, disconnect the negative lead
from the battery terminal).
• To reduce the chance of sparks, do not plug
in the battery charger until the battery
charger leads are connected to the battery.
• Before removing the battery charger lead
clips from the battery terminals, be sure to
turn off the battery charger.
• Make sure that the battery charger lead
clips are in full contact with the battery ter-
minal and that they are not shorted. A cor-
roded battery charger lead clip may gener-
ate heat in the contact area and a weak clip
spring may cause sparks.
• If the battery becomes hot to the touch at
any time during the charging process, dis-
connect the battery charger and let the bat-
tery cool before reconnecting it. Hot batter-
ies can explode!
• As shown in the following illustration, the
open-circuit voltage of a MF battery stabi-
lizes about 30 minutes after charging has
been completed. Therefore, wait 30 minutes
after charging is completed before measur-
ing the open-circuit voltage.
INSP
ADJ