Schumacher SCI90 - Manual (Page 4)

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4. CHARGER LOCATION
WARNING
RISK OF EXPLOSION AND CONTACT WITH BATTERY ACID.
4.1 Locate the charger as far away from the battery as the DC cables permit.
4.2 Never place the charger directly above the battery being charged; gases from the battery
will corrode and damage the charger.
4.3 Do not set the battery on top of the charger.
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5. FOLLOW THESE STEPS WHEN BATTERY IS INSTALLED IN VEHICLE
WARNING A SPARK NEAR THE BATTERY MAY CAUSE A BATTERY EXPLOSION. TO
REDUCE THE RISK OF A SPARK NEAR THE BATTERY:
5.1 Position the AC and DC cables to reduce the risk of damage by the hood, door and moving
or hot engine parts. NOTE: If it is necessary to close the hood during the charging process,
ensure that the hood does not touch the metal part of the battery clips or cut the insulation
of the cables.
5.2 Stay clear of fan blades, belts, pulleys and other parts that can cause injury.
5.3 Check the polarity of the battery posts. The POSITIVE (POS, P, +) battery post usually has
a larger diameter than the NEGATIVE (NEG, N, -) post.
5.4 Determine which post of the battery is grounded (connected) to the chassis.
5.5 For a negative-grounded vehicle, connect the POSITIVE (RED) clip from the battery charger
to the POSITIVE (POS, P, +) ungrounded post of the battery. Connect the NEGATIVE
(BLACK) clip to the vehicle chassis or engine block away from the battery. Do not connect
the clip to the carburetor, fuel lines or sheet-metal body parts. Connect to a heavy gauge
metal part of the frame or engine block.
5.6 For a positive-grounded vehicle, connect the NEGATIVE (BLACK) clip from the battery
charger to the NEGATIVE (NEG, N, -) ungrounded post of the battery. Connect the
POSITIVE (RED) clip to the vehicle chassis or engine block away from the battery. Do not
connect the clip to the carburetor, fuel lines or sheet-metal body parts. Connect to a heavy
gauge metal part of the frame or engine block.
5.7 Connect charger AC supply cord to electrical outlet.
5.8 When disconnecting the charger, disconnect the AC cord, remove the clip from the vehicle
chassis and then remove the clip from the battery terminal.
6. FOLLOW THESE STEPS WHEN BATTERY IS OUTSIDE VEHICLE
WARNING
A SPARK NEAR THE BATTERY MAY CAUSE A BATTERY EXPLOSION. TO
REDUCE THE RISK OF A SPARK NEAR THE BATTERY:
6.1 Check the polarity of the battery posts. The POSITIVE (POS, P, +) battery post usually has
a larger diameter than the NEGATIVE (NEG, N, -) post.
6.2 Attach at least a 24-inch (61 cm) long 6-gauge (AWG) insulated battery cable to the
NEGATIVE (NEG, N, -) battery post.
6.3 Connect the POSITIVE (RED) charger clip to the POSITIVE (POS, P, +) post of the battery.
6.4 Position yourself and the free end of the cable you previously attached to the NEGATIVE
(NEG, N, -) battery post as far away from the battery as possible – then connect the
NEGATIVE (BLACK) charger clip to the free end of the cable.
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6.6 Connect charger AC supply cord to electrical outlet.
6.7 When disconnecting the charger, always do so in the reverse order of the connecting
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6.8 A marine (boat) battery must be removed and charged on shore. To charge it onboard
requires equipment specially designed for marine use.