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CHK
ADJ
CHECKING AND CHARGING THE BATTERY
NOTE:
_
Since MF batteries are sealed, it is not possi-
ble to check the charge state of the battery by
measuring the specific gravity of the electro-
lyte. Therefore, the charge of the battery has to
be checked by measuring the voltage at the
battery terminals.
1. Remove:
• rider seat
Refer to “SEATS”
2. Disconnect:
• battery leads
(from the battery terminals)
CAUTION:
_
First, disconnect the negative battery lead
1
, and then the positive battery lead
2
.
3. Remove:
• battery
4. Check:
• battery charge
▼▼▼▼ ▼ ▼▼▼▼▼▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼▼▼
a. Connect a pocket tester to the battery termi-
nals.
NOTE:
_
• The charge state of an MF battery can be
checked by measuring its open-circuit volt-
age (i.e., the voltage when the positive bat-
tery terminal is disconnected).
• No charging is necessary when the open-cir-
cuit voltage equals or exceeds 12.8 V.
b. Check the charge of the battery, as shown
in the charts and the following example.
Example
c. Open-circuit voltage = 12.0 V
d. Charging time = 6.5 hours
e. Charge of the battery = 20 ~ 30%
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Positive tester probe
→
positive battery terminal
Negative tester probe
→
negative battery terminal
13.0
12.5
12.0
11.5
5 6.5 10
Relationship between the open-circuit voltage
and the charging time at 20 °C.
Charging time (hours)
These values vary with the temperature, the condition of
the battery plates, and the electrolyte level.
Open-circuit voltage (V)Open-circuit voltage (V)
Ambient
temperature
20 °C
Charging condition of battery (%)