Yamaha T135SE Service Manual page 97

CHECKING AND CHARGING THE BATTERY
1
3. Disconnect:
2
9 battery leads
(from the battery terminals)
cC
First, disconnect the negative battery lead
1 , and then the positive battery lead 2 .
4. Disconnect:
9 battery breather hose
5. Remove:
9 battery
b
6. Check:
a
9 electrolyte level
The electrolyte level should be between the
minimum level mark a and the maximum
level mark b .
Below the minimum level mark → Add dis-
tilled water to the proper level.
cC
Add only distilled water. Tap water contains
minerals which are harmful to the battery.
7. Check:
9 specific gravity
Less than 1.280 → Recharge the battery.
8. Charge:
9 battery
Battery charging amperage and time
0.5 amps/10 hrs
w
Do not quick charge a battery.
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Specific gravity
˚ ˚
1.280 at 20 C (68 F)