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 +.
✓✓
✓✓
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.
✓✓
✓✓
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.
✓✓
✓✓
Do not connect the ground clamp to the carburetor, fuel
line or body sheet metal.
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