Yamaha MBK YQ100 Service Manual page 73

UPPER
+
LOWER
CHECKING THE BATTERY
4.Check:
•electrolyte level
The electrolyte level should be between the
minimum level mark
level mark
Below the minimum level mark → Add distilled
water to the proper level.
CAUTION:
Add only distilled water. Tap water contains
minerals which are harmful to the battery.
5.Check:
•specific gravity
Less than 1.280 → Recharge the battery.
6.Charge:
•battery
WARNING
Do not quick charge a battery.
CAUTION:
• Loosen the battery sealing caps.
• To ensure maximum performance, always
charge a new battery before using it.
• 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 scooter. (If charging has to be
done with the battery mounted on the
scooter, 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.
3-30
INSP
REG
and the maximum
.
Specific gravity
°
1.280 at 20 C
Battery charging amperage and
time
0.3 amps/10 hrs