Schumacher PSW-70300A User Manual
Model / Modelo / Modèle:
PSW-70300A
Automatic Battery Charger
Cargador de batería automático
Chargeur de batterie automatique
Voltage / Tensión / Tension: 12
Amperage / Amperaje / Ampérage:
4, 20, 40, 70
OWNER’S MANUAL
MANUAL DEL USUARIO
GUIDE D’UTILISATION
DO NOT RETURN THIS PRODUCT TO THE STORE!
Call Customer Service for assistance: 800-621-5485
¡NO LO DEVUELVA ESTE PRODUCTO A LA TIENDA!
Llame a Servicios al Cliente para asistencia: 800-621-5485
NE PAS RETOURNER LE PRODUIT AU MAGASIN !
Appeler le service clientèle pour l’assistance : 800-621-5485
READ THE ENTIRE MANUAL BEFORE USING THIS PRODUCT. FAILURE
TO DO SO COULD RESULT IN SERIOUS INJURY OR DEATH.
LEA EL MANUAL COMPLETO ANTES DE UTILIZAR ESTE PRODUCTO.
CUALQUIER FALLA PODRÍA RESULTAR EN SERIAS LESIONES O PODRÍA
SER MORTAL.
LIRE ENTIÈREMENT LE GUIDE AVANT D’UTILISER CE PRODUIT. L’ÉCHEC
DE FAIRE AINSI PEUT S’ENSUIVRE DANS LA BLESSURE SÉRIEUSE OU
LA MORT.
0099001272-00
IMPORTANT: READ AND SAVE THIS SAFETY AND INSTRUCTION MANUAL.
SAVE THESE INSTRUCTIONS – This manual will show you how to use your
charger safely and effectively. Please read, understand and follow these instructions
and precautions carefully, as this manual contains important safety and operating
instructions. The safety messages used throughout this manual contain a signal word, a
message and an icon.
The signal word indicates the level of the hazard in a situation.
Indicates an imminently hazardous situation which, if not avoided, will result in
death or serious injury to the operator or bystanders.
Indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury to the operator or bystanders.
Indicates a potentially hazardous situation which, if not avoided, could result in
moderate or minor injury to the operator or bystanders.
Indicates a potentially hazardous situation which, if not avoided, could result in
damage to the equipment or vehicle or property damage.
Pursuant to California Proposition 65, this product contains chemicals
known to the State of California to cause cancer and birth defects or other
reproductive harm. Wash hands after handling.
IMPORTANT SAFETY INSTRUCTIONS – SAVE THESE INSTRUCTIONS. 1.
This manual contains important safety and operating instructions.
RISK OF ELECTRIC SHOCK OR FIRE.
Keep out of reach of children.1.1
Do not expose the charger to rain or snow.1.2
Use only recommended attachments. Use of an attachment 1.3
not recommended or sold by Schumacher® Electric Corporation
may result in a risk of re, electric shock or injury to persons or damage to property.
To reduce the risk of damage to the electric plug or cord, pull by the plug rather than the 1.4
cord when disconnecting the charger.
An extension cord should not be used unless absolutely necessary. Use of an improper 1.5
extension cord could result in a risk of re and electric shock. If an extension cord must
be used, make sure:
That the pins on the plug of the extension cord are the same number, size and shape •
as those of the plug on the charger.
That the extension cord is properly wired and in good electrical condition.•
That the wire size is large enough for the AC ampere rating of the charger as •
specied in section 8.
To reduce the risk of electric shock, unplug the charger from the outlet before attempting 1.6
any maintenance or cleaning. Simply turning off the controls will not reduce this risk.
Do not operate the charger with a damaged cord or plug; have the cord or plug replaced 1.7
immediately by a qualied service person. (Call customer service at 1-800-621-5485.)
Do not operate the charger if it has received a sharp blow, been dropped or otherwise 1.8
damaged in any way; take it to a qualied service person. (Call customer service at
1-800-621-5485.)
Do not disassemble the charger; take it to a qualied service person when service or 1.9
repair is required. Incorrect reassembly may result in a risk of re or electric shock.
(Call customer service at 1-800-621-5485.)
RISK OF EXPLOSIVE GASES.
WORKING IN THE VICINITY OF A LEAD-ACID BATTERY IS 1.10
DANGEROUS. BATTERIES GENERATE EXPLOSIVE GASES DURING
NORMAL BATTERY OPERATION. FOR THIS REASON, IT IS OF UTMOST
IMPORTANCE THAT YOU FOLLOW THE INSTRUCTIONS EACH TIME YOU
USE THE CHARGER.
• 2 •
To reduce the risk of a battery explosion, follow these instructions and those published 1.11
by the battery manufacturer and the manufacturer of any equipment you intend to use
in the vicinity of the battery. Review the cautionary markings on these products and on
the engine.
This charger employs parts, such as switches and circuit breakers, that tend to produce 1.12
arcs and sparks. If used in a garage, locate this charger 18 inches (46 cm) or more
above oor level.
PERSONAL PRECAUTIONS2.
RISK OF EXPLOSIVE GASES.
NEVER smoke or allow a spark or ame in the vicinity of a battery or engine.2.1
Remove personal metal items such as rings, bracelets, necklaces and 2.2
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.
Be extra cautious, to reduce the risk of dropping a metal tool onto the battery. It might 2.3
spark or short-circuit the battery or other electrical part that may cause an explosion.
Use this charger for charging LEAD-ACID batteries only. It is not intended to supply power 2.4
to a low voltage electrical system other than in a starter-motor application. Do not use
this 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.
NEVER charge a frozen battery.2.5
NEVER overcharge a battery.2.6
Consider having someone nearby to come to your aid when you work near a 2.7
lead-acid battery.
Have plenty of fresh water and soap nearby in case battery acid contacts your skin, 2.8
clothing or eyes.
Wear complete eye and body protection, including safety goggles and protective 2.9
clothing. Avoid touching your eyes while working near the battery.
If battery acid contacts your skin or clothing, immediately wash the area with soap and 2.10
water. If acid enters your eye, immediately ood the eye with cold running water for at
least 10 minutes and get medical attention right away.
If battery acid is accidentally swallowed, drink milk, the whites of eggs or water. DO NOT 2.11
induce vomiting. Seek medical attention immediately.
PREPARING TO CHARGE3.
RISK OF CONTACT WITH BATTERY ACID. BATTERY ACID IS A
HIGHLY CORROSIVE SULFURIC ACID.
If it is necessary to remove the battery from the vehicle to 3.1
charge it, always remove the grounded terminal rst. Make sure all
of the accessories in the vehicle are off to prevent arcing.
Be sure the area around the battery is well ventilated while 3.2
the battery is being charged.
Clean the battery terminals before charging the battery. During cleaning, keep airborne 3.3
corrosion from coming into contact with your eyes, nose and mouth. Use baking soda
and water to neutralize the battery acid and help eliminate airborne corrosion. Do not
touch your eyes, nose or mouth.
Add distilled water to each cell until the battery acid reaches the level specied by the 3.4
battery manufacturer. Do not overll. For a battery without removable cell caps, such
as valve regulated lead acid batteries (VRLA), carefully follow the manufacturer’s
recharging instructions.
Read, understand and follow all instructions for the charger, battery, vehicle and any 3.5
equipment used near the battery and charger. Study all of the battery manufacturer’s
specic precautions while charging and recommended rates of charge.
Determine the voltage of the battery by referring to the vehicle owner’s manual and 3.6
make sure that the output voltage selector switch is set to the correct voltage. If the
charger has an adjustable charge rate, charge the battery in the lowest rate rst.
Make sure that the charger cable clips make tight connections.3.7
• 3 •
CHARGER LOCATION4.
RISK OF EXPLOSION AND CONTACT WITH
BATTERY ACID.
Locate the charger as far away from the 4.1
battery as the DC cables permit.
Never place the charger directly above the 4.2
battery being charged; gases from the battery will corrode and damage the charger.
Do not set the battery on top of the charger.4.3
Never allow battery acid to drip onto the charger when reading the electrolyte specic 4.4
gravity or lling the battery.
Do not operate the charger in a closed-in area or restrict the ventilation in any way.4.5
DC CONNECTION PRECAUTIONS5.
Connect and disconnect the DC output clips only after setting all of the charger switches 5.1
to the “off” position (if applicable) and removing the AC plug from the electrical outlet.
Never allow the clips to touch each other.
Attach the clips to the battery and chassis, as indicated in sections 6 and 7.5.2
FOLLOW THESE STEPS WHEN BATTERY IS INSTALLED IN VEHICLE6.
A SPARK NEAR THE BATTERY MAY CAUSE A
BATTERY EXPLOSION. TO REDUCE THE RISK
OF A SPARK NEAR THE BATTERY:
Position the AC and DC cables to reduce the 6.1
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.
Stay clear of fan blades, belts, pulleys and other parts that can cause injury.6.2
Check the polarity of the battery posts. The POSITIVE (POS, P, +) battery post usually 6.3
has a larger diameter than the NEGATIVE (NEG, N, -) post.
Determine which post of the battery is grounded (connected) to the chassis. If the 6.4
negative post is grounded to the chassis (as in most vehicles), see step 6.5. If the
positive post is grounded to the chassis, see step 6.6.
For a negative-grounded vehicle, connect the POSITIVE (RED) clip from the battery 6.5
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.
For a positive-grounded vehicle, connect the NEGATIVE (BLACK) clip from the battery 6.6
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.
Connect charger AC supply cord to electrical outlet.6.7
When disconnecting the charger, turn all switches to off, disconnect the AC cord, remove 6.8
the clip from the vehicle chassis and then remove the clip from the battery terminal.
See CALCULATING CHARGE TIME for length of charge information.6.9
FOLLOW THESE STEPS WHEN BATTERY IS OUTSIDE VEHICLE7.
A SPARK NEAR THE BATTERY MAY CAUSE A
BATTERY EXPLOSION. TO REDUCE THE RISK
OF A SPARK NEAR THE BATTERY:
Check the polarity of the battery posts. The 7.1
POSITIVE (POS, P, +) battery post usually has a
larger diameter than the NEGATIVE (NEG, N, -) post.
Attach at least a 24-inch (61 cm) long 6-gauge (AWG) insulated battery cable to the 7.2
NEGATIVE (NEG, N, -) battery post.
Connect the POSITIVE (RED) charger clip to the POSITIVE (POS, P, +) post of the battery.7.3
• 4 •
Position yourself and the free end of the cable you previously attached to the NEGATIVE 7.4
(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.
Do not face the battery when making the nal connection. As stated in 7.4, face away 7.5
from the battery when connecting the negative clip to the cable.
Connect charger AC supply cord to electrical outlet.7.6
When disconnecting the charger, always do so in the reverse order of the connecting 7.7
procedure and break the rst connection while as far away from the battery as practical.
A marine (boat) battery must be removed and charged on shore. To charge it onboard 7.8
requires equipment specially designed for marine use.
GROUNDING AND AC POWER CORD CONNECTIONS8.
RISK OF ELECTRIC SHOCK OR FIRE.
This battery charger is for use on a 8.1
nominal 120-volt circuit and has a grounded
plug that looks like the plug illustrated. The
charger must be grounded to reduce the risk of
electric shock. The plug must be plugged into
an outlet that is properly installed and grounded in accordance with
all local codes and ordinances. The plug pins must t the receptacle
(outlet). Do not use with an ungrounded system.
8.2 Never alter the AC cord or plug provided – if it does not t the outlet,
have a proper grounded outlet installed by a qualied electrician. An improper
connection can result in a risk of an electric shock or electrocution. NOTE: Pursuant to
Canadian Regulations, use of an adapter plug is not allowed in Canada. Use of an
adapter plug in the United States is not recommended and should not be used.
Recommended minimum AWG size for extension cord:8.3
100 feet (30.5 meters) long or less - use an 10 gauge (5.26 mm•
Over 100 feet (30.5 meters) long - use a 8 gauge (8.36 mm•
2
) extension cord.
2
) extension cord.
FE ATURES9.
3
5
4
Ammeter1.
2
Voltmeter2.
Foam Grip3.
1
8
Fiberglass Clip Rod4.
6
Battery Clips5.
Charge Rate Selector Switch6.
7
Timer7.
Wheel8.
ASSEMBLY INSTRUCTIONS10.
It is important to fully assemble your charger before use. Follow these instructions for
assembly.
• 5 •
Item PARTS TOOLS NEEDED
1
(2) axle brackets
2
(1) axle with pin holes
3
(2) wheels
4
(2) 10-32, thread cutting screws
5
(2) ¼-20, thread cutting screws
6
(1) foot
7
(2) axle caps
8
(2) hairpin cotter
9
(4) 8-18 sheet metal screws
10
(1) handle
11
(1) berglass clamp rod
12
(1) foam handle grip
3/8" wrench (for mounting foot)
5/16" wrench (for mounting wheels)
1/4" wrench (for mounting handle)
hammer
screwdriver (at blade)
screwdriver (Phillips)
Carefully lay the charger on its front to prepare for assembly.1.
Assemble the foot (Item 6) using two ¼-20 screws (Item 5) and tighten securely.2.
Attach the two axle brackets (Item 1) using one 10-32 screw (Item 4) in each. The 3.
brackets should have one end hooked into the slot in the charger base. Be careful
not to drop the brackets inside of the charger case. Do not completely tighten the
screws (Item 4) at this time.
Slide the axle (Item 2) into the brackets (Item 1) until centered on the charger.4.
Slide one wheel (Item 3) onto the axle with the recessed hub facing out as shown.5.
Insert the pin (Item 8) through the axle hole.6.
Repeat this process for the other wheel and when both wheels have been pinned to 7.
the axle, nish tightening the two axle bracket screws (Item 4).
Snap the axle caps (Item 7) onto each wheel to cover the pin and axle.8.
Lift the charger upright so that it rests on the wheels and foot.9.
Remove the two top side screws (Item 9) from each side of the charger.10.
Verify that the foam handle grip (Item 12) is on the handle assembly (Item 10). Install 11.
if needed.
Insert the berglass clamp rod (Item 11) into the pierced holes on the inside of the 12.
handle (Item 10).
Align the handle assembly (Item 10) with charger and reinstall the side screws (Item 13.
9). Do not over tighten.
The charger assembly is now complete. The battery clips can be clamped to the 14.
berglass rod (Item 11) for convenient storage.
Do not attach the clips to the foam area of the handle; this will damage the foam grip.15.
12
• 6 •
10
11
9
CONTROL PANEL11.
Timer
Timer Setting:• The timer allows you to set a specied time for charging. After the
timer expires, the charger stops charging your battery. The main function of the
timer is to prevent over charging while allowing a battery time to obtain a satisfactory
charge. To properly set the timer, you must know the size of the battery in ampere
hours or reserve capacity in minutes and the state of charge. It is important that you
determine the appropriate state of charge of your battery as specied in Section 13
and set the timer accordingly.
Hold• : This position defeats the timer function, allowing for continuous operation.
Automatic Modes:• Put the timer in the HOLD position when using the battery
charger in one of the Automatic Modes (4, 20 or 70 amp), otherwise the timer
will stop the charging process when the time expires regardless of whether
it is complete or not. The CHARGED (green) LED will light when charging is
complete and the charger goes into Maintain Mode. The charger will not shut off.
Manual Modes:• Put the timer in the HOLD position when using the battery
charger in the Manual Mode (40 amp) and when you want to charge more than
2¼ hours. Be sure to monitor the charging progress and stop it when the battery
is charged. Not doing so may cause damage to your battery or may cause other
personal property damage or personal injury.
Ammeter
The Ammeter indicates the amount of current, measured in amps, that is being drawn
by the battery. As a battery takes on a charge, it draws less current from the charger.
Correspondingly, the meter will show less current being drawn by the battery. When the
current stops decreasing, the battery is charged. The 4 amp charge rate may indicate
some activity on the meter, although the meter does not have the resolution to display
this low rate.
Voltmeter
The voltmeter indicates the voltage at the battery terminals. The charger need not be
plugged into an AC outlet. The timer should be in the OFF position. Then connect the
charger following the instructions in Sections 6 and 7. Observe the meter indication.
Keep in mind that this reading is only a battery voltage reading, a false surface
charge may mislead you. We suggest that you turn on the headlights for a couple of
minutes before you read the meter. Read it a couple of minutes after you have shut
the headlights off. If the reading is less than 10.5-volts, the battery may be bad or the
connection at the charger may be poor. If the reading is 10.5-volts to 12.8-volts, the
battery is low – recharge it. If the reading is above 12.8-volts, the battery is charged.
Charge Rate Selector Switch
Use the Charge Rate selector switch to select the charge rate or engine starting setting
you require.
4A Slow Charge Rate• – Intended for charging small batteries such as those
commonly used in garden tractors, snow mobiles and motorcycles.
20A and 40A Fast and 70A Rapid Charge Rate• – Use for charging automotive,
marine and deep-cycle batteries. Not intended for industrial applications.
300A Engine Start• – Provides 300 amps for cranking an engine with a weak or run
down battery. Always use in combination with a battery.
OPERATING INSTRUCTIONS12.
Automatic Temperature Compensation
The charger adjusts the maximum charge voltage and maximum maintain voltage based
on the ambient air temperature. This permits optimum charging and safety.
Thermal Runaway
The charger automatically reduces the current if it detects the battery may be getting too
hot. This is a safety precaution.
Charging
Ensure that all of the charger components are in place and in good working 1.
condition, including the plastic boots on the battery clips. Make sure the electrolyte
(battery liquid) in each cell is at the correct level.
Set the charge rate switch and the timer to the OFF position.2.
• 7 •
Connect the battery following the precautions listed in Sections 6 and 7.3.
Connect the AC power following the precautions listed in Section 8.4.
Select the desired charge rate. NOTE: The 40 amp Manual rate is a manual mode 5.
and will overcharge a battery if permitted to operate for extended periods of time.
Monitor the charging process often.
Turn the timer to HOLD or the selected charge time if using the 40 amp Manual Mode.6.
To disconnect the charger, reverse the procedure.7.
NOTE: This charger is equipped with a safe start feature. In the Automatic 4, 20 and 70
amp charge rates it will not supply current to the battery clips until a battery is properly
connected. Unlike traditional chargers, the clips will not spark if touched together. In the
Manual 40 amp charge rate, the clips will spark if accidently touched together.
Automatic Charging Mode
When an Automatic Charge is performed, the charger switches to the Maintain Mode
(see below) automatically after the battery is charged. For a battery with a starting
voltage under 1 volt, use the Manual Mode (see Manual Charging section) rst to
pre-charge the battery for ve minutes to get additional voltage into the battery for the
charger to analyze.
Manual Charging Mode
When you select the 40 Amp Manual Mode charge rate, you will be charging in manual
mode. You must set the timer to the proper time (see Timer section). Be sure to monitor
the charging procedure and stop it when the battery is charged. Not doing so may cause
damage to your battery or result in other property damage or personal injury.
Aborted Charge
If charging can not be completed normally, charging will abort. When charging aborts,
the charger’s output is shut off. To reset after an aborted charge, either disconnect the
battery or unplug the charger.
Desulfation Mode
If the battery is left discharged for an extended period of time, it could become sulfated
and not accept a normal charge. If the charger detects a sulfated battery, the charger
will switch to a special mode of operation designed for such batteries. If successful,
normal charging will resume after the battery is desulfated. Desulfation could take 8 to
10 hours. If desulfation fails, charging will abort (see Aborted Charge section).
Completion of Charge
Charge completion is indicated by the CHARGED (green) LED. When lit, the charger
has switched to the Maintain Mode of operation.
Maintain Mode (Float-Mode Monitoring)
When the CHARGED (green) LED is lit, the charger has started Maintain Mode. In this
mode, the charger keeps the battery fully charged by delivering a small current when
necessary. If the battery voltage drops below a preset level, the charger will go back into
Charge Mode until the battery voltage returns to the full charge level, at which point the
charger will return to Maintain Mode.
NOTE: The charger automatically switches between Charge Mode and Maintain Mode
as necessary. The CHARGED (green) LED will cycle on when the battery is at full
charge and off when the voltage drops below a preset level and the charger goes into
Charge Mode. This cycle will continue, and the CHARGED (green) LED will stay on for
longer periods of time as the battery becomes more fully charged.
Using the Engine Start feature
Your battery charger can be used to jumpstart your car if the battery is low. Follow these
instructions on how to use the ENGINE START feature.
Wear complete eye protection and clothing protection. Charge your battery in a well-
Follow all safety instructions and precautions for charging your battery.
ventilated area.
Using the ENGINE START feature WITHOUT a battery installed in the
vehicle could cause damage to the vehicle’s electrical system. NOTE: If you have
charged the battery and it still will not start your car, do not use the engine start feature,
or it could damage the vehicle’s electrical system.
• 8 •
Set the charge rate switch and the timer to the OFF position.1.
With the charger unplugged from the AC outlet, connect the charger to the battery 2.
following the instructions given in Section 6 (FOLLOW THESE STEPS WHEN THE
BATTERY IS INSTALLED IN A VEHICLE).
Plug the charger AC power cord into the AC outlet, and then move the timer switch 3.
from OFF to the HOLD position.
With the charger plugged in and connected to the battery of the vehicle, set the 4.
charge rate selector switch to the engine start position.
Crank the engine until it starts or 3 seconds pass. If the engine does not start, wait 3 5.
minutes before cranking again. This allows the charger and battery to cool down.
NOTE: During extremely cold weather, or if the battery is under 2 volts, charge the
battery for 5 minutes before cranking the engine.
If the engine fails to start, charge the battery for 5 more minutes before attempting to 6.
crank the engine again.
After the engine starts, move the charge rate selector switch to the OFF position and 7.
unplug the AC power cord before disconnecting the battery clips from the vehicle.
Clean and store the charger in a dry location.8.
NOTE: If the engine does turn over but never starts, there is not a problem with the
starting system; there is a problem somewhere else with the vehicle. STOP cranking the
engine until the other problem has been diagnosed and corrected.
Using the Battery Voltage Tester
Overview
This battery charger has a built-in voltmeter to test your battery’s state of charge. The
charger does not have a built in load tester. As such, a recently charged battery could
have a temporarily high voltage due to what is known as “surface charge”. The voltage
of such a battery will gradually drop during the period immediately after the charging
system is disengaged. Consequently, the tester could display inconsistent values for
such a battery. For a more accurate reading, the surface charge should be removed
by temporarily creating a load on the battery, such as by turning on lights or other
accessories for a couple of minutes before you read the display. Read it a couple of
minutes after you have shut the headlights off.
Testing Sequence: There are four basic steps required to test the battery state of charge:
With the charger unplugged from the AC outlet, connect the charger to the battery 1.
following the instructions given in Sections 6 and 7.
Set the charge rate switch and the timer to the OFF position.2.
Plug the charger AC power cord into the AC outlet, following the instructions given in 3.
Section 8.
Read the voltage on the voltmeter.4.
Using the Alternator Performance Tester
Overview
This battery charger has a built-in alternator tester that displays an estimate of the
alternator’s relative output compared to normal alternators. The alternator % values
displayed should be taken as a general reference, not a precise diagnosis. The
alternator tester functions the same as the built-in battery voltage tester (see previous
section for details) with a few differences.
Testing Sequence: There are four basic steps required to operate this unit as an
alternator tester:
With the charger unplugged from the AC outlet, connect the charger to the battery 1.
following the instructions given in Sections 6 and 7.
Set the charge rate switch and the timer to the OFF position.2.
Plug the charger AC power cord into the AC outlet, following the instructions given in 3.
Section 8.
Start the vehicle and turn on the vehicle’s headlights. Read the voltage on the voltmeter.4.
• 9 •
General Charging Notes
Fan: The charger is designed to control its cooling fan for efcient operation.
Consequentially, it is normal for the fan to start and stop when maintaining a fully
charged battery. Keep the area near the charger clear of obstructions to allow the fan to
operate efciently.
Voltage: The voltage displayed during charging is the charging voltage and is usually
higher than the battery’s resting voltage.
CALCULATING CHARGE TIME13.
The Hydrometer or Electronic Method
To nd the time needed to fully charge your battery, determine the battery’s charge level
with a hydrometer or electronic Percent-of-Charge Tester. The following table will help
you convert hydrometer readings to percent of charge values.
SPECIFIC GRAVITY PERCENT OF CHARGE
1.265 100% 0%
1.225 75% 25%
1.155 25% 75%
1.120 0% 100%
PERCENT OF CHARGE
NEEDED
When you know the percent of charge and the Amp Hour (AH) rating of your battery, you
can calculate the approximate time needed to bring your battery to a full charge.
To convert Reserve Capacity to Amp Hours, divide Reserve Capacity by 2, and add 16:
Example:
Amp Hour Rating = Reserve Capacity + 16
2
NOTE: The Reserve Capacity can be obtained from the battery specication sheet or
the owner’s manual.
To calculate the time needed for a charge:
Find the percent of charge needed. (A battery at 50 percent charge that will be 1.
charged to 100 percent needs another 50 percent (.50)).
Multiply the Amp Hour Rating by the charge needed (.50) and divide by the charge 2.
rate.
Multiply the results by 1.25 and you will have the total time needed, in hours, to bring 3.
the battery to full charge.
Add an additional hour for a deep-cycle battery.4.
Example:
Amp Hour Rating x % of charge needed x 1.25 = hours of charge
Charger Setting
100 (AH Rating) x .50 (charge needed) x 1.25 = 3.125 hours
20 (Charger Setting)
100 x .50 x 1.25 = 3.125
20
You would need to charge your 100-Ampere Hour Battery for a little more than 3 hours
at the 20-Amp charge rate using the above example.
• 10 •
The Chart Method
Use the following table to more accurately determine the time it will take to bring a
battery to full charge. First, identify where your battery ts into the chart.
NR means that the charger setting is NOT RECOMMENDED.
Find your battery’s rating on the chart below, and note the charge time given for each
charger setting. The times given are for batteries with a 50% charge prior to recharging.
Add more time for severely discharged batteries.
BATTERY SIZE/RATING
SMALL
BATTERIES
CARS/
TRUCKS
MARINE/DEEP CYCLE
Motorcycle,
tractor, etc.
200 - 315 CCA 40 - 60 RC
315 - 550 CCA 60 - 85 RC
550 - 1000 CCA 80 - 190 RC
garden,
6 - 12 AH 1 - 2 hrs NR NR NR
12 - 32 AH 2 - 5 hrs
80 RC 8¾ hrs
140 RC 13½ hrs
160 RC 15 hrs
180 RC 16½ hrs
CHARGE RATE/CHARGING TIME
4 AMP 20 AMP 40 AMP
NR NR
½ - ¾ hr
¾ - 1 hr
1 - 1¾
hrs
NR NR
NR NR
NR NR
NR NR
5½ - 7¼
hrs
7¼ - 9¼
hrs
9¼ -
17½ hrs
NR
1 - 1½
hrs
1½ - 2
hrs
2 - 3½
hrs
1¾ hrs
2¾ hrs
3 hrs
3½ hrs
70 Amp
20 - 30
min
30 - 40
min
40 min -
1 hr
MAINTENANCE INSTRUCTIONS14.
After use and before performing maintenance, unplug and disconnect the battery 14.1
charger (see Sections 6, 7 and 8).
Use a dry cloth to wipe all battery corrosion and other dirt or oil from the terminals, 14.2
cords, and the charger case.
Ensure that all of the charger components are in place and in good working condition, 14.3
including the plastic boots on the battery clips.
Servicing does not require opening the unit, as there are no user-serviceable parts.14.4
All other servicing should be performed by qualied service personnel.14.5
MOVING AND STORAGE INSTRUCTIONS15.
Store the charger unplugged, in an upright position. The cord will still conduct electricity 15.1
until it is unplugged from the outlet.
Store inside, in a cool, dry place.15.2
Store the clips on the berglass clamp rod. Do not store them on the handle, clipped 15.3
together, on or around metal, or clipped to the cables.
if the charger is moved around the shop or transported to another location, take care to 15.4
avoid/prevent damage to the cords, clips and charger. Failure to do so could result in
personal injury or property damage.
• 11 •
TROUBLESHOOTING16.
PROBLEM POSSIBLE CAUSE REASON/SOLUTION
No reading on the
ammeter.
Ammeter reading
stays high.
Ammeter reads less than
selected charge rate when
charging a discharged
battery
Battery clips do not spark
when touched together.
The charger is making an
audible clicking sound.
Charger is not plugged in.
No power at the receptacle.
Clips are not making a good
connection to the battery.
Connections are reversed.
Battery is defective (will not
accept a charge).
4 amp charge rate is being used.
Battery is severely discharged.
Wrong battery voltage.
Extension cord is too long or wire
gauge is too small.
Weak cell or sulfated plate in
battery.
Battery is only partially
discharged.
The charger is equipped with
a safe start feature. In the
automatic modes, it will not
supply current to the battery
clips until a battery is properly
connected. Unlike traditional
chargers, the clips will no spark if
touched together.
Circuit breaker is cycling.
Battery is defective.
Shorted battery cables or clips.
Severely discharged battery, but
otherwise it is a good battery.
Reverse connections at battery.
• 12 •
Plug the charger into an AC outlet.
Check for open fuse or circuit
breaker supplying AC outlet.
Check for poor connection to
battery and frame. Make sure
connection points are clean.
Rock clips back and forth for a
better connection.
Unplug the charger and reverse
the clips.
Have battery checked.
Ammeter may show no activity at
the 4A charge rate.
Continue charging battery for two
more hours. If problem continues
have the battery checked.
Verify the voltage settings on the
charger are correct.
Use a shorter or heavier gauge
extension cord.
A sulfated battery will eventually
take a normal charge if left
connected. If the battery will not
take a charge, have it checked.
Continue to charge the battery.
No problem; this is a normal
condition.
The settings may be wrong.
Check the charger settings.
Have the battery checked.
Circuit breaker cycles when
current draw is too high. Check
for shorted cables or clips and
replace if necessary.
The battery may not want to
accept a charge due to a rundown state. Allow charging to
continue until battery has a
chance to recover sufciently to
take a charge. If more than 20
minutes, stop charging and have
the battery checked.
Shut the charger off and correct
the lead connections.
PROBLEM POSSIBLE CAUSE REASON/SOLUTION
Charger makes a loud buzz
or hum.
Short or no start cycle
when cranking engine.
Transformer laminations vibrate
(buzz).
Shorted Diode Assembly or
Output Rectier Assembly (hum).
Drawing more than 300 amps.
Failure to wait 3 minutes (180
seconds) between cranks.
No problem; this is a normal
condition.
Have charger checked by a
qualied technician.
Crank time varies with the
amount of current drawn. If
cranking draws more than 300
amps, crank time may be less
than 3 seconds.
Wait 3 minutes of rest time
before the next crank.
Charger will not turn on
when properly connected.
The battery is connected
and the charger is on, but
is not charging.
The measured current is
much lower than what was
selected.
Clips are not making a good
connection.
AC cord and/or extension cord
is loose.
No power at receptacle.
The charger may be overheated.
Battery may be severely
discharged.
AC outlet is dead.
Poor electrical connection.
Clips are not making a good
connection.
The charger reached the
maximum voltage and is
reducing the current.
Check for poor connection at
battery and frame.
Check power cord and extension
cord for loose tting plug.
Check for open fuse or circuit
breaker supplying AC outlet.
The thermal protector may have
tripped and needs a little longer
to reset. Make sure the charger
vents are not blocked. Wait and
try again.
On a severely discharged battery,
charge for 10 to 15 minutes in
the 40 amp manual rate to help
assist in cranking.
Check for open fuse or circuit
breaker supplying AC outlet.
Check power cord and extension
cord for loose tting plug.
Check for poor connection at
battery and frame. Make sure
connecting points are clean.
Rock clips back and forth for a
better connection.
No problem; this is a normal
condition.
BEFORE RETURNING FOR REPAIRS17.
When a charging problem arises, make certain that the battery is capable of accepting a 17.1
normal charge. Use a good battery to double check all connections, the AC outlet for a full
120-volts, the charger clips for correct polarity and the quality of the connections from the
cables to the clips and from the clips to the battery system. The clips must be clean.
When a battery is very cold, partially charged or sulfated, it will not draw the full rated 17.2
amperes from the charger. It is both dangerous and damaging to a battery to force
higher amperage into it than it can effectively use in recharging.
When an UNKNOWN OPERATING PROBLEM arises, please read the complete manual 17.3
and call the customer service number for information. This will usually eliminate the
need for return.
If the above solutions do not eliminate the problem or for information about troubleshooting
or replacement parts, call toll-free from anywhere in the U.S.A.
1-800-621-5485
7:00 am to 5:00 pm Central Time Monday thru Friday
• 13 •
LIMITED WARRANTY18.
WARRANTY NOT VALID IN MEXICO.
SCHUMACHER ELECTRIC CORPORATION, 801 BUSINESS CENTER DRIVE,
MOUNT PROSPECT, IL 60056-2179, MAKES THIS LIMITED WARRANTY TO THE
ORIGINAL RETAIL PURCHASER OF THIS PRODUCT. THIS LIMITED WARRANTY IS
NOT TRANSFERABLE OR ASSIGNABLE.
Schumacher Electric Corporation (the “Manufacturer”) warrants this battery charger for 3
years from the date of purchase at retail against defective material or workmanship that
may occur under normal use and care. If your unit is not free from defective material or
workmanship, Manufacturer’s obligation under this warranty is solely to repair or replace
your product with a new or reconditioned unit at the option of the Manufacturer. It is the
obligation of the purchaser to forward the unit, along with proof of purchase and mailing
charges prepaid to the Manufacturer or its authorized representatives in order for repair
or replacement to occur.
Manufacturer does not provide any warranty for any accessories used with this product
that are not manufactured by Schumacher Electric Corporation and approved for use
with this product. This Limited Warranty is void if the product is misused, subjected to
careless handling, repaired, or modied by anyone other than Manufacturer or if this unit
is resold through an unauthorized retailer.
Manufacturer makes no other warranties, including, but not limited to, express,
implied or statutory warranties, including without limitation, any implied warranty
of merchantability or implied warranty of tness for a particular purpose. Further,
Manufacturer shall not be liable for any incidental, special or consequential damage
claims incurred by purchasers, users or others associated with this product, including,
but not limited to, lost prots, revenues, anticipated sales, business opportunities,
goodwill, business interruption and any other injury or damage. Any and all such
warranties, other than the limited warranty included herein, are hereby expressly
disclaimed and excluded. Some states do not allow 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 specic legal
rights and it is possible you may have other rights which vary from this warranty.
THIS LIMITED WARRANTY IS THE ONLY EXPRESS LIMITED WARRANTY AND THE
MANUFACTURER NEITHER ASSUMES OR AUTHORIZES ANYONE TO ASSUME
OR MAKE ANY OTHER OBLIGATION TOWARDS THE PRODUCT OTHER THAN
THIS WARRANTY.
Schumacher Electric Corporation Customer Service
Monday–Friday 7:00 a.m. to 5:00 p.m. CST
Schumacher® and the Schumacher Logo® are registered trademarks of
Schumacher Electric Corporation.
To activate the warranty, please ll in the warranty registration card on page 15 and mail it in,
OR go to www.batterychargers.com to register your product online.
1-800-621-5485
DO NOT RETURN THIS PRODUCT TO THE STORE!
Call Customer Service for assistance: 800-621-5485
• 14 •
3 YEAR LIMITED
WARRANTY PROGRAM
REGISTRATION
MODEL:___________________ DESCRIPTION:___________________________
This is the only express limited warranty, and the manufacturer neither assumes nor authorizes
anyone to assume or make any other obligation. There is no other warranty, other than what is
The warranty card should be submitted within 30 days of purchase. The customer
must keep the ORIGINAL receipt because it will be required for any warranty claims.
This warranty is not transferable. Send warranty card only.
described in the product owner’s manual.
Do not send unit to this address for repair.
Mail this card to: Schumacher Electric Corporation
801 Business Center Drive
Mount Prospect, IL 60056-2179
Name_______________________________________________________________
Street Address________________________________________________________
City_________________________________State__________Zip Code__________
Phone______________________Email____________________________________
Store Name Where Purchased____________________Date of Purchase__________
Store Location_____________________UPC Number_________________________
Serial Number________________________(SEE PRODUCT)
PROGRAMA DE REGISTRO
DE 3-AÑOS DE GARANTÍA
LIMITADA
MODELO:___________________ DESCRIPCIÓN:___________________________
Esta es la única garantía limitada expresa, y el productor no autoriza ni otorga a alguien a realizar
alguna otra obligación. No existe ninguna otra garantía más que la descrita en el manual del dueño.
La tarjeta de garantía debe enviarse durante los primeros 30 días después de la compra.
El cliente debe mantener el recibo de compra ORIGINAL como comprobante,
el cual le otorga todo derecho a cualquier reclamo de garantía.
Esta garantía no es transferible. Envie tarjeta de garantía solamente.
No envíe la unidad a esta dirección para su reparación.
Enviar esta tarjeta a: Schumacher Electric Corporation
801 Business Center Drive
Mount Prospect, IL 60056-2179
Nombre______________________________________________________________
Dirección_____________________________________________________________
Ciudad_______________________________Estado_____________C.P.__________
Tel:_______________________Correo electrónico____________________________
Nombre de la Tienda donde se Compró_________________Fecha de compra _____
Localización de la Tienda___________________Numero de Serie _______________
Código de barras ________________________(CONSULTE EL PRODUCTO)
• 15 •
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