SE-1-12S
1½ AMP
Battery Charger & Maintainer
For 12 Volt Batteries
Battery
Charger
Model:
Owner's Manual
Read Rules for Safe Operation and Instructions Carefully
Working in 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.
WARNING: Handling the cord on this product or cords associated with accessories sold with this product, will 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.
GENERAL BATTERY SAFETY
1. Before you use your battery charger, be sure to read all
instructions and cautions printed on:
10. Do not use an extension cord unless absolutely necessary.
Use of an improper extension cord could result in fire or
electric shock. If an extension cord must be used, make
sure that:
• Battery Charger
• Battery
• Vehicle or unit using battery
• Pins on plug of extension cord are the same number,
size, and shape as those of plug on charger.
• Extension cord is properly wired and in good electrical
condition.
• Wire size is large enough forAC ampere rating of charger,
as specified below:
2. Use battery charger on LEAD ACID type rechargeable
batteries only, such as used in autos, trucks, tractors,
airplanes, vans, RV's trolling motors, etc. Charger is not
intended to supply power to low-voltage electrical system
other than in an automotive application.
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
18
50
18
100
18
150
16
3. Use only attachments recommended or sold by
manufacturer. Use of non-recommended attachments may
result in fire, electric shock, or injury.
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
qualified professional for inspection and repair.
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.
9. To reduce risk of electric shock, unplug charger from outlet
before attempting any maintenance or cleaning.
11. Always charge battery in a well ventilated area.
NEVER operate in a closed-in or restricted area without
adequate ventilation.
WARNING: Risk of explosive gas.
12. Locate charger as far away from battery as DC charger
cables permit.
13. Do not expose charger to rain or snow.
14. NEVER charge a frozen battery. If battery fluid (electrolyte)
is frozen, bring into a warm area to thaw before charging.
15. NEVER allow battery acid to drip on charger when reading
specific gravity or filling battery.
16. NEVER set a battery on top of charger.
17. NEVER place charger directly above battery being charged.
Gases from battery will corrode and damage charger.
18. NEVER touch the battery clips together when the charger
is energized.
19. NEVER crank engine with charger attached to battery, and
120 volt line.
• IMPORTANT SAFETY INSTRUCTIONS •
• SAVE THESE INSTRUCTIONS •
SCHUMACHER ELECTRIC CORPORATION
801 BUSINESS CENTER DRIVE • MOUNT PROSPECT, ILLINOIS 60056-2179
Send Warranty Product Repairs to: 1025 E. Thompson, Hoopeston, IL60942-0280
Call Customer Service if you have questions: 1-800-621-5485
00-00-000457/0603
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MOUNTING INSTRUCTION
FENDER WELL
Figure 1 illustrates the charger mounting brackets.
Figure 2 illustrates surface mounting of the charger to the fender
well. If using the nut and bolt provided, drill two holes between
3/16" and 1/4" in diameter. (For alignment of holes use one of
the brackets as a template.) If the backside of the mounting
surface is hard to reach, you may consider using two 1/2" sheet-
metal screws instead of nut bolt, drill a pilot hole if required, drill
holes between 1/8" and 5/32". CAUTION: Do not drill or punc-
ture battery.
12 VOLT
BATTERY
Figure 1
Electrical installations - Route and secure supply cord and out-
put wiring away from gas line, carburetor or other hot, sharp or
moving and pinch parts to avoid damage to the insulation. Se-
cure the AC cord and plug to a cable or from using a self locking
cable tie or equivalent.
Figure 2
Figure No. 3 illustrates mounting of the charger alongside the
battery of your automobile. If convenient place the charger to
the side of the battery away from the engine and fan blades,
assemble the brackets as shown in figure No. 4. Loosen the
battery retaining hardware enough that you can insert the longer
portion of bracket "C" between the bottom of the battery and the
battery mounting tray. Align the charger to freely stand without
restrictions, then tighten all hardware.
ELECTRICAL CONNECTION
The output leads of the charger are terminated with 3/8 inch
ring lugs. Remove the bolts from the battery post connector,
insert the bolt through the ring lug then place the bolt back in
the battery connector and tighten. Connect the red lead to the
positive (+) battery post and the black lead to the negative (-)
post.
If you have difficulty connecting the output leads, consult your
local auto supply store, they may assist you in finding a con-
necting device for your application.
Figure 4
gure 3
Figure 5
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 LIM-
ITED WARRANTY IS NOT TRANSFERABLE.
THIS IS THE ONLY EXPRESS LIMITED WARRANTY AND THE MANUFAC-
TURER NEITHER ASSUMES NOR AUTHORIZES ANYONE TO ASSUME 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 WAR-
RANTY.
Schumacher Electric Corporation warrants this battery charger for two years
from date of purchase at retail against defective material or workmanship. If
such should occur, the unit will be repaired or replaced at the option of the manu-
facturer. It is the obligation of the purchaser to forward the unit together with
proof of purchase, transportation and/or mailing charges prepaid to the manu-
facturer or its authorized representative.
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCI-
DENTAL OR CONSEQUENTIAL DAMAGES OR LENGTH OF IMPLIED WAR-
RANTY SO THEABOVE LIMITATIONS OR EXCLUSIONS MAY NOTAPPLYTO
YOU.
This limited warranty is void if the product is misused, subjected to careless
handling, or repaired by anyone other than the manufacturer or its authorized
representative.
THIS WARRANTY GIVES YOU SPECIFIC LEGALRIGHTSAND YOU MAYALSO
HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE.
The manufacturer makes no warranty other than this limited warranty and ex-
pressly excludes any implied warranty including any warranty for consequential
damages.
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OPERATING INSTRUCTIONS
Model SE-1-12S is intended for use with 12 volt battery sys-
tems only. The charger contains an electronic control circuit which
safeguards against overcharging the battery.
most vehicles, see item 5. If positive post is grounded to
chassis, see item 6.
5. For common negative grounded vehicle, connect positive
(red) terminal from battery charger to positive (+)
ungrounded post of the battery. Connect negative (-) ring
terminal to the vehicle chassis or engine block away from
battery as far as the leads will permit. Do not connect ring
terminal to the carburetor, fuel lines, or sheet metal body
parts. Connect to a heavy gauge metal part of the frame or
engine block or the negative post.
6. For positive grounded vehicle, connect negative (blk) ring
terminal from the battery charger to the NEG (-) ungrounded
battery post. Connect POS (+) red ring terminal to the vehicle
chassis or engine block or the POS battery post. DO NOT
connect the ring terminal to the carburetor, fuel lines, or
sheet metal body parts. Connect to a heavy gauge metal
part of the frame or engine block.
After reading and following the directions "Charging battery in
vehicle" or "Charging battery out of vehicle," you may observe
the following conditions:
Light Color
On/Off
Condition
Green
Off
Check wall receptacle for
120 volts or check lead
connections, may be
reversed.
Green
Red
On
On
AC Power is present.
Battery charger voltage is
approximately 14 volts and
charging has stopped.
7. Only after completing steps 1 through 6, plug the extension
cord into grounded 120 volt 60 hertz outlet.
Red
Off
Battery voltage has
dropped one volt and the
charging has resumed.
PROPER DISCONNECT PROCEDURE
1. Always unplug extension cord before doing anything else.
2. Disconnect the grounded clamp from the engine block,
framework or battery.
3. Finally disconnect the remaining clamp from battery terminal
post.
The on/off cycle of the red light will continue, the red light will
stay on for longer periods of time as the battery becomes more
fully charged. Your charger has been designed NOT to spark if
the ring lugs on the leads accidentally touch one another, or if
the leads are connected in reverse.
NOTE: When connected to an electrical source, the charger
may hum or buzz. This is normal. Also, the charger is
designed to get quite warm. Do not set on flammable
material.
The battery must measure at least 2 volts to start the charging
of the battery. The green light will be on even if the charging is
not taking place. You can verify charging by measuring the bat-
tery voltage and noting an increase in volts.
CHARGING BATTERY OUT OF VEHICLE
For some applications you may need to purchase a terminal
similar to that shown in figure 5 to make connections.
This charger is ideally suited for maintaining the battery charge
level for the following applications.
1. Storage of a battery during non-seasonal use.
2. For vehicles seldom used or placed in storage.
3. For improved battery performance during cold weather.
Figure 5
Smaller batteries such as those used on motorcycles and gar-
den tractors can be charged overnight.
Check polarity of battery posts. POS (+) usually is the larger
diameter than NEG (-) post. Connect POS (+) red lead ring ter-
minal to positive post of the battery. Position yourself away from
the battery as far as possible, then connect NEG (-) blk lead
ring terminal to the negative (-) post of the battery. DO NOT
face battery when making final connection.
For large automotive or marine battery which are deeply dis-
charged, it is recommended to recharge first with a larger charger
(such as a 10 amp) then use the SE-1-12S to maintain the charge
level of the battery.
If the battery is used in automobile or other application which
has its own means of charging a battery, the above time maybe
greatly reduced by partially charging the battery before apply-
ing the charger.
A marine (boat) battery must be removed and charged on
shore. To charge it on board requires equipment specially
designed for marine use.
CHARGER OVERLOAD PROTECTION
Your battery charger is protected from power overload by an
automatic heat sensing switch. The protector will open with a
clicking sound and reclose after a brief cooling period.
CHARGING BATTERY IN VEHICLE
FOLLOW THESE STEPS WHEN BATTERY IS INSTALLED IN
VEHICLE A SPARK NEAR BATTERY MAY CAUSE BATTERY
EXPLOSION. TO REDUCE RISK OF SPARK NEAR BATTERY:
1. Position AC and DC cords to reduce risk of damage by
hood, door or moving parts.
2. Stay clear of fan blades, belts, pulleys and other parts that
can cause injury.
3. Check polarity of battery posts. POSITIVE (+) battery post
usually has a larger diameter than the NEGATIVE (-) post.
4. Determine which post of battery is grounded (connected to
the chassis). If negative post is grounded to chassis, as in
MAINTENANCEAND CLEANING
Very little maintenance is required. As with any appliance or
tool, a few common sense rules will prolong the life of your
battery charger.
Store in a clean, dry place.
Clean case and cords with a dry or slightly damp cloth.
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