5
Safety Information
Charging Instructions
Follow the information in this section to help ensure safety when
connecting the charger cables to battery. For additional
information refer to
Battery Charging Procedure.
Battery in Vehicle
Use this information when charging battery in vehicle.
• Do not charge automotive batteries installed in boats.
Remove the battery and charge on shore. Onboard charging
requires equipment designed for marine use.
• Identify battery terminal polarity.
— Negative terminal may be marked NEG, N or –.
— Positive terminal may be marked POS, P or +.
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The positive terminal is usually larger diameter than the
negative terminal on batteries with top terminals.
• Identify system ground.
— Negative ground system has negative terminal connected
to chassis. This is the most common type.
— Positive ground system has positive terminal connected
to chassis.
Negative Ground
• Connect positive charger cable clamp—red—to positive
battery terminal.
• Connect negative charger cable clamp—black—to vehicle
chassis, heavy gauge metal part of frame or engine block,
away from battery.
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Do not connect the ground clamp to the carburetor, fuel
line or body sheet metal.
Positive Ground
• Connect negative charger cable clamp—black—to negative
battery terminal.
• Connect positive charger cable clamp—red—to vehicle
chassis, heavy gauge metal part of frame, or engine block
away from battery.
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Do not connect the ground clamp to the carburetor, fuel
line or body sheet metal.
