SS-15A1-OB, SS-15A2-OB, SS-15A3-OB
Fully Automatic Onboard Marine Battery
Charger
For One , Two or Three 12-Volt Batteries at
15 Amps
Battery
Charger
Models:
Owner's Manual
For 12, 24 or 36 Volt Battery Systems
–Save–
Important Safety Instructions
WARNING – RISK OF EXPLOSIVE GASES
Working in the vicinity of a lead-acid battery is dangerous. Batteries generate explosive gases during normal
battery operation. For this reason, it is of utmost importance that each time before using your charger, you
read this manual and follow the instructions exactly.
To reduce risk of battery explosion, follow these instructions and those published by the battery manufacturer
of any equipment you intend to use in vicinity of battery. Review cautionary markings on these products and
on engine.
WARNING: Handling the cord on this product or cords associated with accessories sold with this product, may expose you to lead, a
chemical known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.
A.
GENERAL BATTERY SAFETY
1. Before you use your battery charger, read and follow all
instructions and cautions printed on:
9. To reduce risk of electric shock, unplug charger from outlet
before attempting any maintenance or cleaning.
10. Do not use an extension cord unless absolutely necessary.
Useofanimproperextensioncordcouldresultinfireorelectric
shock. If an extension cord must be used, make sure that:
• Pins on plug of extension cord are the same number, size,
and shape as those of plug on charger.
• Battery Charger
• Battery
• Unit using battery
2. Use battery charger on Flooded Wet Cell, Maintenance Free
and Starved Electrolyte batteries only. Charger is not intended
to supply power to low-voltage electrical system other than for
charging and maintaining batteries.
• Extension cord is properly wired and in good electrical
condition.
• Wire size is large enough for AC ampere rating of charger,
as specified below:
WARNING: Do not use battery charger for charging dry-cell
batteries that are commonly used with home appliances.
These batteries may burst and cause injury to persons and
damage to property.
Length of cord (feet):
AWG size of cord:
25
16
50
14
100
12
3. Use only attachments recommended or sold by manufacturer.
Use of non-recommended attachments may result in fire,
electric shock, or injury.
11. Always charge battery in a well-ventilated area.
NEVER operate in a closed-in or restricted area without
adequate ventilation.
4. When disconnecting the battery charger, pull by the plug not
by the cord. Pulling on the cord may cause damage to cord
or plug.
5. Locate battery power cord so it cannot be stepped on, tripped
over, or subjected to damage or stress.
6. Do not operate charger with damaged cord or plug. Have cord
replaced immediately.
7. Do not operate charger if it has received a sharp blow, been
dropped, or otherwise damaged in any way. Take it to a qua-
lified professional for inspection and repair.
12. Locate charger as far away from battery as DC charger cables
permit.
13. NEVER charge a frozen battery. If battery fluid (electrolyte) is
frozen, bring into a warm area to thaw before charging.
14. NEVER allow battery acid to drip on charger when reading
specific gravity or filling battery.
WARNING: Battery chargers get hot during operation and
must have proper ventilation. Air needs to flow around
the charger. Do not set on flammable items like carpeting,
upholstery, paper, cardboard, etc. Will damage leather and
melt plastic and rubber.
8. Do not disassemble charger. Take it to a qualified professional
when service or repair is required. Incorrect reassembly may
result in electric shock or fire.
SCHUMACHER ELECTRIC CORPORATION
801 BUSINESS CENTER DRIVE • MOUNT PROSPECT, ILLINOIS 60056-2179
Send Warranty Product Repairs to: 1025 E. Thompson, Hoopeston, IL 60942-0280
Call Customer Service if you have questions: 1-800-621-5485
00-99-000777/0308
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F.
DC CONNECTION PRECAUTION
Connect and disconnect the DC output connections only after removing the AC cord from the electric outlet.
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.
5. Connect POSITIVE (RED) ring terminal from battery charger
to POSITIVE (POS, P, +) post of battery.
2. Stay clear of fan blades, belts, pulleys, and other parts that
can cause injury.
6. Connect NEGATIVE (BLACK) ring terminal to NEGATIVE
(NEG, N, -) post of battery
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.
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 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.
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.
FOR DETAILED WIRING – SEE DIAGRAMS BELOW
12V
3 BATTERIES
12V
1 Battery
12V
2 Batteries
STRAP
OPTIONAL
+
+
+
+
+
+
–
–
–
–
–
–
12V
12V
12V
12V
12V
12V
STRAPS 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
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.
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L.
LED DISPLAY
Red – Check Battery
Yellow – Charging
Green – Charged
TM
RED
YELLOW
GREEN
M.
AUTOMATIC CHARGE MODE
The automatic charger uses a three-step charging process. During the BULK charge phase, the charger attempts to deliver 15 amps of
current to the battery(ies) until the battery voltage levels off. At this point, the charger enters the ABSORPTION charge phase. In this
phase, the charger will hold the battery voltage constant and let the battery determine the charging current. When the charging current
stabilizes, the charger will continue to charge for three hours to bring the battery up to full charge. The charger will then automatically
enter the MAINTAIN MODE. During this phase, the charger will hold the battery voltage constant at the appropriate level based on bat-
tery type to guard against self-discharge of the battery. The charge current will typically be a few tenths of an amp.
N.
EXTENDED BATTERY STORAGE
The charger will draw a small amount of current from the battery(ies), a few milliamps, when not charging or maintaining. If the battery(ies)
are going to be stored for an extended period of time (several months) without being charged, it is best to disconnect the leads or remove
the fuse to keep the charger from discharging the battery(ies) over time.
O.
MAINTENANCE / CLEANING INSTRUCTIONS
Very little maintenance is required for the battery charger. Use common sense in wiping the charger clean and store in a clean, dry
area.
1. After use, use a dry cloth to wipe all battery corrosion and
other dirt or oil from terminals, cords, and the charger case.
2. Coil charger cords to prevent damage.
3. Have any cracked or frayed cords replaced by a qualified
professional.
4. Store battery charger in a clean, dry area.
LIMITED WARRANTY
SCHUMACHER ELECTRIC CORPORATION, 801 BUSINESS CENTER DRIVE, MOUNT PROSPECT, ILLINOIS 60056-2179 MAKES THIS LIMITED
WARRANTY TO THE ORIGINAL PURCHASER AT RETAIL OF THIS PRODUCT. THIS LIMITED WARRANTY IS NOT TRANSFERABLE.
Schumacher Electric Corporation warrants this battery charger for two years from date of purchase at retail against defective material or workman-
ship. If such should occur, the unit will be repaired or replaced at the option of the manufacturer. It is the obligation of the purchaser to forward the
unit together with proof of purchase, transportation and/or mailing charges prepaid to the manufacturer or its authorized representative.
This limited warranty is void if the product is misused, subjected to careless handling, or repaired by anyone other than the manufacturer or its autho-
rized representative.
The manufacturer makes no warranty other than this limited warranty and expressly excludes any implied warranty including any warranty for con-
sequential damages.
THIS IS THE ONLY EXPRESS LIMITED WARRANTYAND THE MANUFACTURER NEITHERASSUMES NORAUTHORIZESANYONE TOASSUME
OR MAKE ANY OTHER OBLIGATION TOWARDS THE PRODUCT OTHER THAN THIS EXPRESS LIMITED WARRANTY. THE MANUFACTURER
MAKES NO WARRANTY OF MERCHANTABILITY OR FITNESS FOR PURPOSE OF THIS PRODUCTAND EXPRESSLY EXCLUDES SUCH FROM
THIS LIMITED WARRANTY.
SOME STATES DO NOTALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LENGTH OF IMPLIED
WARRANTY SO THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS, WHICH VARY FROM STATE TO
STATE.
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