Yamaha F9.9C Ower's Manual page 94

4-27
cC
8 A poorly maintained battery will quick-
ly deteriorate.
8 Ordinary tap-water contains minerals
harmful to a battery, and should not be
used for topping-up.
1) Check the electrolyte level at least once
000639
a month. Fill to the manufacturer's rec-
ommended level when necessary. Top
up only with distilled water (or pure de-
ionized water suitable to use in batter-
ies).
2) Always keep the battery in a good state
of charge. Installing a voltmeter will
help you monitor your battery. If you will
not use the boat for a month or more,
remove the battery from the boat and
store
Completely recharge the battery before
using it.
3) If the battery will be stored for longer
than a month, check the specific gravity
of the fluid at least once a month and
recharge the battery when it is low.
NOTE:
Consult a Yamaha dealer when charging or
re-charging batteries.
EMU12790
Connecting the Battery
w
Mount the battery holder securely in a
dry, well-ventilated, vibration-free loca-
tion in the boat. Install a fully charged
battery in the holder.
it in a cool,
E
dark place.