Yamaha TT600R, Service Manual

Page: 101 / 380

INSP
ADJ
CHECKING AND CHARGING THE BATTERY
3-49
Open-circuit voltage (V)
WARNING
Do not quick charge a battery.
•
Never remove the MF battery sealing caps.
•
Do not use a high-rate battery charger.
They force a high-amperage current into
the battery quickly and can cause battery
overheating 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 nega-
tive 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 bat-
tery.
•
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
terminal and that they are not shorted. A
corroded battery charger lead clip may
generate 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
battery cool before reconnecting it. Hot
batteries 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 min-
utes after charging is completed before
measuring the open-circuit voltage.
CAUTION:
Condition of charge in battery (%)
Ambient
temperature
20 °C
Open-circuit voltage (V)
Check the open-circuit
voltage
Ambient
temperature 20 °C Charging
14
13
12
11
10
100 75 50 30 2520 0
0 10 20 30 40 50 60 Time (minutes)
18
17
16
15
14
13
12
11
10