Yamaha XF50W Service Manual page 107

CHECKING AND CHARGING THE BATTERY
Relationship between the open-circuit voltage
13.0
and the charging time at 20 C
12.5
12.0
11.5
11.5 j -
5 6.5
Charging time (hours)
These values vary with the temperature, the condition of
the battery plates, and the electrolyte level.
14 14 14 14 14
13 13 13 13 13
12 12 12 12 12
11 11 11 11 11
10 10 10 10 10
100 75 50 30 25 20
Charging condition of the battery (%)
Example
c.
d.
e.
10
• • • • • • • • • • • • • • • • • • • • • • •
Ambient Ambient Ambient Ambient Ambient
temperature temperature temperature temperature temperature
20 C 20 C 20 C 20 C 20 C
0
w
Do not quick charge a battery.
cC
3-52
b. Check the charge of the battery, as shown
in the charts and the following example.
Open-circuit voltage = 12.0 V
Charging time = 6.5 hours
Charge of the battery = 20 ~ 30%
5. Charge:
8battery
(refer to the appropriate charging method
illustration)
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
damage.
If it is impossible to regulate the charg-
ing current on the battery charger, be
careful not to overcharge the battery.
When charging a battery, be sure to re-
move it from the scooter. (If charging has
to be done with the battery mounted on
the scooter, disconnect the negative bat-
tery lead from the battery terminal.)
To reduce the chance of sparks, do not
plug in the battery charger until the bat-
tery 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.
CHK
ADJ
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