Schumacher SF-6275A-PE, 1275A-PE User Manual
1275A-PE & SF-6275A-PE
Battery
Charger
Models:
Owner's Manual
2 and 12 AMP with
75 AMP Engine Start
For 12 Volt Regular and
Deep Cycle Lead-Acid Batteries
–Save–
Important Safety Instructions
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.
GENERAL BATTERY SAFETY
Wash hands after handling.
1. Before you use your battery charger, be sure to read all
instructions and cautions printed on:
• Battery Charger
• Battery
• Vehicle or unit using battery
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 drycell batteries that are commonly used with home appliances.
These batteries may burst and cause injury to persons and
damage to property.
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.
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:
• 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 for AC ampere rating of charger,
as specified below:
Length of cord (feet): 25 50 100 150
AWG size of cord: 18 16 12 10
(American Wire Gauge)
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 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.
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
1
00-00-000563/0103
PERSONAL PRECAUTIONS AND SAFETY
1. WARNING: Wear complete eye protection and clothing
protection, when working with lead-acid batteries.
2. Make sure someone is within range of your voice or close
enough to come to your aid when you work with or near a
lead-acid battery.
3. Have plenty of fresh water and soap nearby for use if battery
acid contacts skin, clothing, or eyes. If battery acid contacts
skin or clothing, wash immediately with soap and water.
4. Avoid touching your eyes while working with a battery. Acid
particles (corrosion) may get into your eyes! If acid enters
your eye, immediately flood eye with running cold water for
at least 10 minutes. Get medical attention immediately.
5. Remove all personal metal items such as rings, bracelets,
necklaces, and watches when working with a lead-acid
battery. A lead-acid battery can produce a short-circuit
current high enough to weld a ring (or the like) to metal,
causing a severe burn.
6. Take care not to drop a metal tool or other metal onto the
battery. Metal may cause sparking or short circuit the battery
PREPARING TO CHARGE
or another electrical devise. Sparking may cause an
explosion.
7. Always operate battery charger in an open well ventilated
area.
8. Battery chargers get hot during operation and must have
proper ventilation. Air needs to flow around entire charger.
9. Do not set battery charger on flammable items like carpeting,
upholstery, paper, cardboard etc. Charger may damage
leather and melt plastic and rubber.
10. NEVER smoke or allow a spark or flame in the vicinity of
the battery or engine. Batteries generate explosive gases!
1. Check the battery voltage. This charger is for 12 volt batteries only.
2. Clean battery terminals. Take care to keep corrosion from
coming in contact with your eyes.
3. If required, add distilled water in each cell until battery acid
reaches levels specified by battery manufacturer. This helps
purge excessive gas from cells. Do not overfill. For a battery without cell caps, carefully follow manufacturer's recharging instructions.
4. Study all battery manufacturer's specific precautions, such
as removing or not removing cell caps while charging, and
recommended rates of charge.
5. Be sure area around battery is well ventilated while battery
is being charged. Gas can be forcefully blown away by using a piece of cardboard or other non-metallic material as a
fan.
6. If necessary to remove battery from vehicle to charge, always remove grounded terminal from battery first. Make
sure all accessories in the vehicle are off, so as not to cause
an arc.
7. A marine (boat) battery must be removed and charged on
shore. To charge it on board requires equipment specially
designed for marine use.
BATTERY SIZE/RATING
CAR / LIGHT CCA RES. RECHARGE
TRUCKS CAP TIME-HOURS
200-315 40-60 3-5
315-550 60-85 5-9
550-850 85-150 9-13
MARINE / OR MCA AMP HR
DEEP CYCLE 220-350 24-40 3-5
350-600 40-70 5-9
600-935 70-104 9-13
CCA: COLD CRANKING AMPS RES. CAP.: RESERVE CAPACITY
MCA: MARINE CRANKING AMPS AMP HR: AMPERE HOUR
CHARGE TIME USING THE 2 AMP RATE
WITH SMALL AND MEDIUM SIZE BATTERIES
SIZE IN RECHARGE TIME
AMP HR IN HOURS
LAWN & GARDEN 20-30 12-18
EQUIPMENT 30-40 18-24
MOTORCYCLE 10-15 6-9
15-24 9-21
2
BATTERY CHARGER CONTROLS
Charge
(Select Rate )
L
CONTROLES DEL CARGADOR DE BATERIAS
Carga
(Selector de Proporción )
Arranque a Apagado
Interruptor
75 Amperios
SWITCH
#1
OFF
#1
OFF
THIS CHARGER OFFERS 3 ACTIVE MODES OF
OPERATIONS: 2 & 12 Amp and Engine Start
Modes 1 and 2 are selected by switch #2, both offer automatic
charging. Mode 1 offers a 2 Amp charge rate for 12 volt batteries.
Mode 2 offers a 12 Amp charge rate for 12 volt batteries. (For
modes 1 and 2, Switch #1 must be in "Charge").
Mode 3 offers 75 Amps, selected by Switch #1, to assist in
engine cranking of 12 volt systems. Do not use for crank starting
of 6 volt systems, doing so will cause over loading and may
result in permanent damage to the charger. Use the 75 Amp
position for crank starting automobiles and light trucks. Use only
in combination with a battery in the vehicle. This will reduce the
chance of damaging sensitive electronic equipment in the vehicle.
AUTOMATIC CHARGING (12 Amps)
When the battery reaches the full charge state, charge current
is turned off and the charger switches to the maintainer mode of
operation. This action occurs when the ammeter tapers down to
approximately 6 Amps. In this state the battery voltage is
constantly being monitored. When the battery voltage drops to
a predetermined value, charge will turn on for a few seconds
replacing the small amount of energy that was lost while the
charge current was at 0 Amps.
METER / LED INDICATOR (12 Amp Setting)
The meter gives a reading of the percentage of charge on the
battery while charging. The charge current will gradually taper
down as the battery approaches full charge. As the charge current
tapers, the meter needle will also move down from 25% towards
100%.
12 Volt 12 Volt
2 AMP 12 Amp
L
12 Voltios 12 Voltios
2 Amperios 12 Amperios
SWITCH
#2
Interruptor
#2
When fully charged, the meter needle will suddenly drop to 0
and a green LED will turn on. The 0 is not printed on the meter
scale, the LED is located in its place. The 2 amp setting does
not show on the meter.
NOTE: As the battery approaches the full charge state the meter
needle and LED will fluctuate back and forth between CHARGED
and CHARGING. For the average size automotive battery, allow
5 to 10 minutes for the battery to stabilize.
ENGINE STARTING
1. Connect and disconnect the battery charger following the
instructions given for charging a battery in a vehicle.
2. Charge the battery for 10 minutes before cranking the engine.
This allows you the benefit of drawing current from both the
battery and the charger. The average automotive requires
from 200 to 500 Amps for cranking.
3. Select the 75 Amp Start position and crank the engine.
4. If the engine fails to start, recharge the battery for 10 minutes
or longer and try again. If after several repeated tries the
engine fails to start, a problem may lie elsewhere with the
vehicle.
POWER ON
FIGURE 4. FULLY DISCHARGED
BATTERY, 12 Amp Setting
FIGURA 4. BATERIA TOTALMENTE
DESCARGADA. Tipo 12 amperios
READING METER:
POWER ON
FIGURE 6. APPROACHING FULL
CHARGE, 12 Amp Setting
FIGURA 6. ACERCANDOSE A
PLENA CARGA. Tipo 12 amperios
3
POWER ON
FIGURE 5. FULLY CHARGED BATTERY
charge current to the battery is 0 Amps
and the green LED is on.
FIGURA 5. BATERIA A PLENA CARGA
Corriente de carga batería está a 0
amperios y la LED verde se enciende
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