Operating Instructions - Schumacher Electric Napa 90-300A Owner's Manual

12. OPERATING INSTRUCTIONS

IMPORTANT: Do not start the vehicle with the charger connected to the AC
outlet, or it may damage the charger and your vehicle.
NOTE: This charger is equipped with an auto-start feature. Current will not be
supplied to the ring terminals until a battery is properly connected. The ring
terminals will not spark if touched together.
CHARGING A BATTERY IN THE VEHICLE
1. Turn off all the vehicle's accessories.
2. Keep the hood open.
3. Clean the battery terminals.
4. Place the charger on a dry, non-flammable surface.
5. Lay the AC/DC cables away from any fan blades, belts, pulleys and other
moving parts.
6. For a negative-ground vehicle (as in most vehicles), connect the charger's
POSITIVE (RED) ring terminal to the POSITIVE (POS, P, +) battery post. Next,
connect the charger's NEGATIVE (BLACK) ring terminal to the vehicle chassis
or engine block, away from the battery.
7. For a positive-ground vehicle, connect the charger's NEGATIVE (BLACK) ring
terminal to the NEGATIVE (NEG, N, -) battery post. Next, connect the charger's
POSITIVE (RED) ring terminal to the vehicle chassis or engine block away
from the battery. NEVER connect any ring terminals to the carburetor, fuel lines
or sheet-metal body parts.
8. Connect the charger to a live grounded 120V AC outlet.
9. When charging is complete, disconnect the charger from the AC power, remove
the ring terminal from the vehicle's chassis, and then remove the ring terminal
from the battery terminal.
CHARGING A BATTERY OUTSIDE OF THE VEHICLE
1. Place battery in a well-ventilated area.
2. Clean the battery terminals.
3. Connect a 24-inch long, 6-gauge (AWG) insulated battery cable to the
NEGATIVE (NEG, N, -) battery post (i.e., jumper cable) (not provided).
4. Connect the POSITIVE (RED) ring terminal to the POSITIVE (POS, P, +)
battery post.
5. Position yourself and the "negative post extension" cable as far away from
the battery as possible, and connect the NEGATIVE (BLACK) ring terminal to
the cable's free end.
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