Yamaha KT100SEC Owner's Service Manual page 20

Charging
Charging time 20℃
18
17
16
15
14
13
12
11
10
0 10 20 30 40 50 60 Charging time
Check the
(minutes)
open-circuit voltage
3-8
ELECTRICAL
CAUTION:
Never remove the MF battery sealing caps.
●
Do not use a high-rate battery charger since it
●
forces a high-amperage current into the battery
quickly and can cause battery overheating and
battery plate.
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 machine. (If charging has to be done
with the battery mounted on the machine,
disconnect the negative battery 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 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, disconnect
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 an MF battery stabilizes about
30 minutes after charging has been completed.
Therefore, wait 30 minutes after charging is
completed before measuring the open-circuit
voltage.
INSP
ADJ