Schumacher SS-15A2-OB - Manual (Page 3)

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G. DC CONNECTION PROCEDURE
When charging battery(ies) in boat, take care to determine the battery type and which pole is ground. To reduce risk of a spark near
battery, follow these general steps when battery is inside boat. WARNING: A spark near the battery may cause battery explosion.
1. Position AC power cord and DC charging cords to reduce risk
of damage.
2. Stay clear of fan blades, belts, pulleys, and other parts that
can cause injury.
3. Check polarity of battery posts. Battery case will be marked
to indicate each post’s polarity: POSITIVE (POS, P, +) and
NEGATIVE (NEG, N, -). NOTE: The positive battery post
usually has a larger diameter than the negative post.
4. Determine which post of battery is ground.
5. Connect POSITIVE (RED) ring terminal from battery charger
to POSITIVE (POS, P, +) post of battery.
6. Connect NEGATIVE (BLACK) ring terminal to NEGATIVE
(NEG, N, -) post of battery
7. When disconnecting the charger, disconnect the AC power
cord from the electric outlet first.
8. While disconnecting output leads from the batteries, always
do so in reverse order of the connection procedure.
H. DC WIRING DETAILS
When connecting the ring terminals to the battery, remove nuts
on battery posts, place the ring terminal on corresponding posi-
tive and negative post, and replace each nut tightly to ensure a
good connection.
When connecting the ring terminals, connect the black 12 volt
lead to the negative battery post and the red 12 volt lead to the
positive battery post.
When connecting the charger to TWO and THREE batteries,
connect the positive lead from charging bank one to the positive
post of battery one. Connect the negative lead from charging bank
one to the negative post of battery one. Connect the leads from
charging bank two to battery two, and three to battery three in the
same fashion, . NOTE: Removal of a strap between two batteries
in a 24 or 36 Volt system is not necessary.
FOR DETAILED WIRING – SEE DIAGRAMS BELOW
12V
1 Battery
12V
+ – + –
12V
+ –
12V
+ –
12V
+ –
12V
+ –
12V
12V
2 Batteries
12V
3 BATTERIES
STRAPS OPTIONAL
STRAP
OPTIONAL
I. INLINE FUSES
Inline fuses, located close to the ends of the red leads, protect the charger from extremely high voltage surges, lightning strikes or other
high current surges. If a fuse blows, replace only with AGC-30 30A 32V 1 ¼” glass fuse.
J. GROUNDING AND AC POWER CORD CONNECTION INSTRUCTIONS
Charger should be grounded to reduce risk of electric shock. Charger is equipped with an electric cord having a grounding plug. The plug
must be plugged into an outlet that is properly installed and grounded in accordance with all local codes and ordinances.
DANGER – Never alter AC cord or plug provided – if it will not fit outlet, have proper outlet installed by a qualified electrician. Improper
connection can result in a risk of an electric shock.
CAUTION – To reduce risk of fire or electric shock, connect battery charger directly to grounding receptacle (three-prong). An adapter
should not be used with battery charger.
K. OPERATING INSTRUCTIONS
F. DC CONNECTION PRECAUTION
Connect and disconnect the DC output connections only after removing the AC cord from the electric outlet.
Once the unit has been properly connected to the battery(ies), plug in the charger to AC power. Hold the SET button for two seconds.
When the blue light turns on, press the SELECT button until the correct battery type color is blinking. Once the correct battery type is
blinking press the SET button. The blinking light will move to next battery. Green light indicates when battery(ies) is/are fully charged.
NOTE: When charging more than one battery, you will hear a clicking noise approximately every five minutes. This is normal.