Honda BF9.9A Owner's Manual page 29

5. Battery charging (Equipped with DC receptacle types only)
Batteries produce explosive gases. Keep sparks, flames, and
cigarettes away. To prevent the possibility of creating a spark near
the battery, connect the charging cord first to the battery and then to
the outboard motor; when disconnecting the charging cord remove it
from the outboard first.
NOTE:
Refer to page 9 for battery specifications, and mounting instructions.
The DC receptacle provides a 12 volt, 6 amp output for battery
charging. The charging circuit is protected by a 15 Amp fuse that is
mounted
inside the engine cover.
A male. plug for the DC receptacle is provided with the outboard
motor ; connect your battery charging wires to that plug (Refer to the
wiring diagram on page 51). Be sure that the positive (Red) battery
lead is connected to the (+) plug terminal.
INoTlCE)
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Reversing the battery leads will damage the charging system and/
or the battery.
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When it is not in use, keep the DC receptacle dry and clean by
covering it with the rubber cap provided.
The outboard motor's 12 volt output is intended for battery charging
only. Electrical accessories should be connected to the battery as
shown.
DC RECEPTACLE TO ACCESSORIES
BATIERY
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