OWNER’S MANUAL
Model 10000A
For 6 and 12-Volt Batteries
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SpeedCharge
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15
100
FullyAutomatic
Microprocessor Controlled
Battery Charger with
Engine Starter plus
Battery Tester
CAUTION:
Read all Safety Rules and Operating Instructions,
and follow them with each use of this product.
Schumacher Electric Corporation
Mount Prospect, IL 60056 U.S.A.
Send Warranty Product Repairs to:
Customer Service Returns
P.O. Box 280,1025 E. Thompson, Hoopeston, IL 60942-0280
Questions? Call Customer Service: 1-800-621-5485
0099000530/0605
IMPORTANT SAFETY INSTRUCTIONS
WARNING – RISK OF EXPLOSIVE GASES
WORKING IN VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS. BAT-
TERIES 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
battery manufacturer and manufacturer of any equipment you intend to use in vicinity
of battery. Review cautionary marking on these products and on engine.
SAVE THESE INSTRUCTIONS
• 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.
• To reduce risk of electrical shock,
unplug the charger from the outlet
before attempting any maintenance
or cleaning.
• Always charge battery in a well-
ventilated area.
• WARNING: Battery chargers get hot
during operation and must have
proper ventilation. Air needs to flow
around entire charger. Do not set
charger on flammable materials like
carpeting, upholstery, paper, card-
board, etc. Charger may damage
leather and melt plastic and rubber.
• Read all instructions and cautions
printed on the battery charger,
battery, and vehicle or equipment
using battery.
• Use charger only on lead-acid type
rechargeable batteries, such as those
used in cars, trucks, tractors, air-
planes, vans, RV’s, trolling motors,
etc. This charger is not intended to
supply power to a low voltage
HELP US HELP YOU ——
Remember:
Place charger as far away from the
battery being charged as the charger
cables will permit.
electrical system other than in a
starter-motor application.
• Never use charger for charging dry
cell batteries that are commonly used
with home appliances like radios,
stereos, remote controls, etc. These
batteries may burst and cause
personal injury.
Do not expose charger to rain or snow.
Never charge a frozen battery. If battery
fluid (electrolyte) becomes frozen, bring
battery into a warm area to thaw before
you begin charging.
Never allow battery acid to drip on
charger when reading specific gravity or
filling battery.
• Do not disassemble charger. Take it
to a qualified service professional if
service or repair is required. Incorrect
assembly may result in fire or
electrical shock.
Never set a battery on top of the
charger.
3
Never place charger directly above
battery being charged. The gases from
the battery will corrode and damage the
charger.
Be sure to position the charger power
cord to prevent it from being stepped
on, tripped over, or damaged.
Never pull out the plug by the cord
when unplugging the charger. Pulling
on the cord may cause damage to the
cord or the plug.
Never touch the battery clamps together
when the charger is on. You could
cause a spark.
Never operate charger if it has received
a hard blow, been dropped, or otherwise
damaged. Take it to a qualified profes-
sional for inspection and repair.
Do not operate the charger if it has a
damaged power cord or plug. Have the
cord replaced.
PERSONAL SAFETY PRECAUTIONS
• Wear complete eye and clothing
protection when working with lead-
acid batteries.
• Remove all personal metal items
from your body such as rings,
bracelets, necklaces and watches,
while working with a lead-acid battery.
A battery can produce a short circuit
current high enough to weld a ring (or
the like) to metal, causing a severe
burn.
• Make sure that someone is within
range of your voice to come to your
aid if needed while you work with or
are near a lead-acid battery.
• Have plenty of fresh water and
soap nearby for use in case battery
acid contacts your eyes, skin, or
clothing. If this happens, wash
immediately with soap and water.
Then get medical attention.
• Take care not to drop any metal tool
or metal object onto the battery. This
may spark or short circuit the battery
or another electrical device that may
cause an explosion.
• Always operate the battery charger in
an open, well-ventilated area.
• Avoid touching your eyes while
working with a battery. Acid particles
(corrosion) may get into your eyes. If
this occurs, flush eyes immediately
with running cold water for at least 10
minutes. Then immediately get
medical attention.
• Never smoke or allow a spark or
flame in the vicinity of the battery or
engine. Batteries generate explosive
gases.
• Neutralize any acid spills thoroughly
with baking soda before attempting to
clean up.
• Never charge a frozen battery.
4
BEFORE USING YOUR BATTERY CHARGER
It is important to understand the charger’s requirements. This section explains the
charger’s electrical requirements and how to prepare a battery for charging.
PLUGGING IT IN
extension cord, please make sure that
you follow these guidelines:
• Make sure that pins on plug of
extension cord are the same number,
size, and shape as those of plug on
charger.
Your charger requires a 120V AC
receptacle installed according to all local
codes and ordinances.
• Check that the extension cord is
properly wired and in good electrical
condition.
• Make sure that the wire size is large
enough for its length and for the AC
ampere rating, as specified in the
chart below.
MINIMUM RECOMMENDED EXTENSION CORD
USINGANEXTENSIONCORD
The use of an extension cord is not
recommended. If you must use an
Length of Cord, in Feet
25 50 100 150
18 16 12 10
AWG* Size of Cord
*AWG=American Wire Gauge
PREPARING YOUR BATTERY TO BE CHARGED
It is important that you read and follow these guidelines while you are preparing to
charge the battery.
• Make sure that you have a 12 volt or 6
volt lead-acid battery. Determine
voltage of battery by referring to
vehicle owner’s manual or the battery
markings. Be sure to set the charger
to the 6V or 12V mode accordingly.
Charge battery initially at charger’s
lowest rate.
• Clean the battery terminals. Be
careful to keep corrosion from getting
in or around your eyes.
• Wear safety glasses. See additional
“Personal Safety Precautions” on
page 4.
• If required, for batteries with remov-
able vent caps, add distilled water to
each cell until the battery acid
reaches the level recommended by
the manufacturer. This will help purge
excessive gases from the cells. Be
careful not to overfill. If you have a
sealed battery with non-removable
vent caps, no action is necessary.
• Take time to read all of the battery
manufacturer’s specific precautions,
such as removing or not removing
vent caps while charging, and
recommended rates of charge.
• Be sure that the area around the
battery is well ventilated while it is
being charged. Gas can be forcefully
blown away by using a piece of
cardboard or other nonmetallic
material as a fan.
• If it is necessary to remove the battery
from the vehicle to charge it, always
remove the grounded terminal from
the battery first. Turn off all vehicle
accessories to avoid sparks from
occurring.
• NOTE: A marine (boat) battery
installed in a boat must be removed
and charged on shore.
5
OPERATING INSTRUCTIONS
IMPORTANT: Follow all safety instructions and precautions when charging your
battery. Wear complete eye protection and clothing protection. Charge your battery in
a well-ventilated area.
CHARGING BATTERY IN THE
VEHICLE:
heavy, unpainted metal part of the
chassis or engine block, away from
the battery (see figure above). DO
NOT connect clamp to negative
battery post, carburetor, fuel line or
sheet metal part.
1. Avoid personal injury by keeping
clear of fan blades, belts, pulleys and
other engine parts.
2. Avoid damaging the Charger by
keeping the power cord and output
cords away from the hood, door or
moving engine parts.
Connectingtoapositive-grounded
system: Connect the black (NEGA-
TIVE) output clamp to the NEGA-
TIVE post of the battery. Rock and
twist the clamp back and forth to be
sure a solid electrical connection is
made. Then connect the red (POSI-
TIVE) output clamp to a heavy,
unpainted metal part of the chassis
or engine block, away from the
battery. DO NOT connect clamp to
positive battery post, carburetor, fuel
line or sheet metal part.
3. Note the polarity of the battery posts
by checking the identification marks
on the battery: POSITIVE (POS, P or
+) and NEGATIVE (NEG, N or -). The
positive post is usually larger than
the negative post.
4. Identify which battery post is
grounded or connected to the
chassis. THIS IS NORMALLY THE
NEGATIVE POST.
6. Plug power cord into an AC outlet.
The charger will be set to the default
state of 2A charge rate and REGU-
LAR battery type (tester).
7. Press the appropriate control buttons
to select the desired charge rate and
battery type. Within a few seconds,
the CHARGING (yellow) LED should
light and the charging process should
start. If the CHECK (red) LED is on,
check for correct cable connections.
8. To disconnect the Charger, unplug its
power cord before attempting to
disconnect the output clamps. Then,
standing away from the battery,
remove the output clamp from the
chassis or engine block. Finally,
remove the output clamp from the
battery post.
NEGATIVE GROUNDED SYSTEM
5. Connecting to a negative-
grounded system: Connect the red
(POSITIVE) output clamp to the
POSITIVE post of the battery. Rock
and twist the clamp back and forth to
be sure a solid electrical connection
is made. Then connect the black
(NEGATIVE) output clamp to a
9. Clean and store the Charger in a dry
location.
6
CHARGINGBATTERYREMOVEDFROMTHEVEHICLE:
NEGATIVE
POSITIVE
Y CHARGER
BATTERY
POWER
CORD
TO
GROUNDED
POWER
OUTLET
1. Note the polarity of the battery posts
by checking the identification marks
on the battery: POSITIVE (POS, P or
+) and NEGATIVE (NEG, N or -). The
positive post is usually larger than
the negative post.
NEGATIVE battery post. Finally,
remove the output clamp from the
POSITIVE battery post.
8. Clean and store the charger in a dry
location.
USING ENGINE START
2. Attach at least a 24-inch-long, 6-
gauge (AWG), insulated battery
cable to NEGATIVE (NEG, N or -)
battery post. Rock and twist the
clamp back and forth to be sure a
solid electrical connection is made.
Your battery charger can be used to
jump start your car if the battery is low.
Follow these instructions on how to use
the ENGINE START feature.
IMPORTANT: Follow all safety instruc-
tions and precautions when charging
your battery. Wear complete eye
protection and clothing protection.
Charge your battery in a well-ventilated
area.
3. Connect the red (POSITIVE) output
clamp to the POSITIVE battery post.
Rock and twist the clamp back and
forth to be sure a solid electrical
connection is made.
4. Position yourself as far away from
the battery as possible, and then
connect the black (NEGATIVE)
output clamp to the free end of the
cable.
IMPORTANT: Using the ENGINE
START feature WITHOUT a battery
installed in the vehicle could cause
damage to the vehicle’s electrical
system.
5. Plug the power cord into an AC
outlet. The charger will be set to the
default state of 2A charge rate and
REGULAR battery type (tester).
1. With the charger plugged in and
connected to the battery of the
vehicle, set the CHARGE RATE to
100A START. Only the 100A START,
CHARGING LED’s and BATTERY
TYPE should be lit.
6. Press the appropriate control buttons
to select the desired charge rate and
battery type. Within a few seconds,
the CHARGING (yellow) LED should
light and the charging process should
start. If the CHECK (red) LED is on,
check for correct cable connections.
2. Crank the engine for no more than 8
seconds. If engine does not start,
wait 2 minutes before cranking again.
3. After the engine starts, unplug the
power cord before disconnecting the
output clamps from the battery.
7. To disconnect the Charger, unplug
its power cord before attempting to
disconnect the charger clamps.
4. Clean and store the charger in a dry
location.
Then, standing away from the battery,
remove the output clamp from the
7
CHARGER CONTROL
™
LEDs
SpeedCharge
Digital
LED
Stattuuss LLEDs
Switch Buttons
10000A CONTROL PANEL
DISPLAYMODESWITCH
• 12V REGULAR: This is the type of
battery usually used in cars, trucks,
and motorcycles. These batteries
have vent caps and are often marked
“low maintenance” or “maintenance-
free”.
• 12VDEEPCYCLE:Deepcycle
batteries are usually marked as
“deep cycle” or “marine”. Deep cycle
batteries are usually larger than the
other types.
• 12V AGM, GEL: AGM and gel cell
batteries have sealed cases without
vent caps. Such batteries are often
smaller than the other types.
• 6V REGULAR: This is the type of
battery usually used in antique and
some specialized vehicles.
Use this switch to set the function of the
digital LED to one of the following.
• BATTERY %: The digital LED displays
an estimate of the percent of charge
of the battery connected to the
charger battery clamps.
• VOLTAGE: The digital LED displays
the voltage at the charger battery
clamps in DC volts.
CHARGERATESWITCH
Use this switch button to set the charge
rate to one of the following.
• 2ACHARGERATE:Intendedfor
charging small batteries such as
those commonly used in garden
tractors, snow mobiles and motor-
cycles. The 2A rate is not intended to
be used as a trickle charger for larger
batteries.
• 15A or40ACHARGERATE:Usefor
charging automotive batteries,
marine batteries, and deep cycle
batteries. Not intended for industrial
applications.
With the exception of AGM and gel cell
batteries, all other battery types may or
may not have vent caps. Vent caps are
located on top of the battery and provide
a means to add distilled water when
needed. Batteries should be marked
with their type. If charging a battery that
is not marked, check the manual of the
item that uses the battery. If the battery
type is unknown, use the REGULAR
setting. Make sure the battery complies
with the safety instructions on page 3.
• 100A START: Provides 100 amps for
cranking an engine with a weak or
run down battery. Always use in
combination with a battery.
BATTERYTYPESWITCH
Use this switch button to set the type of
battery to be charged to one of the
following.
8
CONTROL PANEL GUIDE
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9
USING THE BUILT-IN BATTERY TESTER
OVERVIEW
TESTINGAFTERCHARGING
This battery charger has a built-in
battery tester that displays either an
accurate battery voltage or an estimate
of the battery’s relative charge based on
the battery voltage and the Battery
Council International scale.
After the unit has been changed from
tester to charger (by selecting a charge
rate), it remains a charger as long as it
has power. Disconnect and reconnect
the power to change the unit back to a
tester.
TESTING SEQUENCE
TESTERSTATUSLEDs
There are four basic steps required to
use the 10000A as a battery tester.
1. Connect the charger battery clamps to
the battery. Be sure to follow all of the
precautions listed under “OPERATING
INSTRUCTIONS”.
2. Connect the charger power cord to a
120 VAC outlet. Again, be sure to follow
all of the precautions listed under “OP-
ERATINGINSTRUCTIONS”.
When the 10000A is operating as a
battery tester, the status LEDs light
under the following conditions.
• The CHARGED (green) LED will light
if a charged battery is tested.
• The CHARGING (yellow) LED does
not light in the battery test mode.
• The CHECK (red) LED lights unless a
properly connected battery is de-
tected.
3. If necessary, press the Battery Type
button until the correct type is indi-
cated.
• When the tester display mode is set
to voltage, none of the Status LEDs
light.
4. Read the voltage on the digital LED or
press the display mode button to set
the tester to “Battery %” and read the
battery percent.
INITIALPERCENTCALCULATION
When a battery % is calculated for the
first time after connecting a battery, the
digital LED will show two dashes (“--”)
for a period as long as several seconds
while the tester analyzes the battery.
TESTER AND CHARGER
When first turned on, the 10000A
operates only as a tester, not as a
charger. To continue to use it as only a
tester, avoid pressing the CHARGE
RATE switch button. Selecting a charge
rate activates the battery charger and
deactivates the tester.
NOTES FOR TESTING BATTERY %
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.
POWER-UPIDLETIMELIMIT
If no switch button is pressed within ten
minutes after the unit is first powered
up, the unit will automatically switch
from tester to charger, if a battery is
connected. In that case, the unit will be
set for the 2A charge rate and 12V
REGULAR battery type.
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.
TESTER WITHOUT TIME LIMIT
If either the DISPLAY MODE or BAT-
TERY TYPE button is pressed within the
first ten minutes after the unit is
powered up, the unit will remain a tester
(not a charger) indefinitely, unless a
charge rate is selected.
The battery % ranges from 0 to 100.
The battery tester is only designed to
test batteries. Testing a device with a
rapidly changing voltage could yield
unexpected or inaccurate results.
10
USING YOUR ENGINE STARTER
OVERVIEW
2. Cranking - When cranking is
detected, the charger will automati-
cally deliver up to its maximum
output (at least 100A) as required by
the starting system for up to 5
seconds or until the engine cranking
stops. The digital display shows a
countdown of the remaining crank
time in seconds. It starts at 5 and
counts down to 0.
The 10000A has an engine start
function that can be used to jump start
your vehicle if the battery is low by
providing 100 amps of current to assist
engine cranking.
STARTINGSEQUENCE
There are a few basic steps involved
when using the engine start function.
1. Connect the charger battery clamps
to the battery or charging system. Be
sure to follow all of the precautions
listed under “OPERATING INSTRUC-
TIONS”.
3. Cool Down - After cranking, the unit
enters a mandatory 2-minute (120
second) cool down state. During this
period, no settings can be changed.
The buttons are ignored. The digital
display indicates the remaining cool
down time in seconds. It starts at
120 and counts down to 0. The 100A
START LED blinks once every
2. Connect the charger power cord to a
120 VAC outlet. Again, be sure to
follow all of the precautions listed
under “OPERATING INSTRUC-
TIONS”.
second. During the cool down period,
the charger delivers charge at a rate
of 20A and the CHARGING LED is lit.
After 2 minutes, the 100A START
LED will stop blinking and will light
continuously, indicating that another
crank cycle can be started. The
digital LED will change from display-
ing the countdown back to displaying
the battery voltage.
3. Press the CHARGE RATE button
until the 100A START indicator is lit.
4. Crank the engine until it starts or 5
seconds passes.
5. If the engine did not start, wait for the
charger to cool then repeat step 4.
During the starting sequence listed
above, the charger is set to one of three
states.
ENGINE STARTING NOTES:
• If the battery is disconnected during
the cool down period, the charger will
reset.
1. Wait for cranking - The charger
waits until the engine is actually
being cranked before delivering 100
amps for engine start. The charger
delivers charge at a rate of 20 amps
while waiting and will reset if the
engine is not cranked within 5
minutes. (If the charger resets, it sets
itself for a 2A charge and 12V
REGULAR battery.) While waiting for
cranking, the digital display shows
the battery voltage (it can’t be set to
percent).
11
USING YOUR BATTERY CHARGER
OVERVIEW
and light continuously. Desulfation
could take up to 10 hours. If desulfation
fails, charging will be aborted and the
CHECK (red) LED will blink.
Using this battery charger is very
simple. First, connect the battery and AC
power following the precautions listed
under “OPERATING INSTRUCTIONS”.
Then select the appropriate BATTERY
TYPE and CHARGE RATE for your
battery. The charger will then do
everything automatically. This section
explains a few details.
COMPLETION OF CHARGING: Charge
completion is indicated by the
CHARGED (green) LED; when lit, the
charger has stopped charging and
switched to the Maintain Mode of
operation.
CHARGING: If the charger does not
detect a properly connected battery, the
CHECK (red) LED will light continuously
until such a battery is detected. Charg-
ing will not begin while the CHECK light
is on. When charging begins, the
CHARGING LED will be lit.
MAINTAIN MODE: When the
CHARGED (green) LED is lit, the
charger has started Maintain Mode. This
mode of operation is also known as
Float-Mode Monitoring. In this mode,
the charger keeps the battery fully
charged by delivering a small current,
when necessary. The voltage is main-
tained at a level determined by the
BATTERY TYPE selected.
AUTOMATIC SHUT OFF: When the 2A,
15A or 40A charge rate is selected, the
charger is set to perform an automatic
charge. When an automatic charge is
performed, the charger stops charging
automatically after the battery is
charged.
GENERAL CHARGING NOTES:
The unit is designed to control its
cooling fan for efficient operation.
Consequently, it is normal for the fan to
start and stop when maintaining a fully
charged battery. The fan does not run in
Tester Mode.
ABORTED CHARGE: If charging can’t
be completed normally, charging will be
aborted. When charging is aborted, the
charger’s output is shut off and the red
CHECK LED and digital LED blink on
and off (at opposite times). In that state,
the charger ignores all buttons. To reset
from after an aborted charge, either
disconnect the battery or unplug the
charger.
If the charge mode is changed after
charging has started (by pressing the
CHARGE RATE or BATTERYTYPE
button), the charging process will be
restarted.
The voltage displayed during charging is
the charging voltage and usually will be
higher than the battery’s resting voltage.
DESULFATION MODE: If a battery is left
discharged for an extended period, 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. Activation of the spe-
cial desulfation mode is indicated by
blinking the CHARGING LED. If suc-
cessful, normal charging will resume
after the battery is desulfated. The
If the 6V REGULAR battery type has
been selected, and the battery voltage
exceeds 8.5 VDC, the charging process
will be aborted (see ABORTED
CHARGE above). The charger will not
charge a 12V battery if “6V REGULAR
has been selected.
CHARGING LED will then stop blinking
12
CHARGING TIPS
Read this entire manual before using your charger. The tips below serve only as a
guide for specific situations.
If your vehicle won’t start: You don’t
need to fully charge a battery to start
your vehicle. If the charger won’t start
your vehicle using the 100A START rate,
try charging the battery using the 40A
rate for 10 or 15 minutes. That should
charge the battery enough to allow the
100A START rate to start the vehicle. If
the vehicle will then be operated
Reviving your battery: If you only wish
to charge your battery enough to
operate your vehicle, you don’t need to
wait for the entire charging process to
be completed. When the charger
displays a battery % of 77 or more (see
page 14), the battery has usually been
charged enough for the vehicle to start
and operate normally.
continuously for an extended period
(such as a long drive), the vehicle could
charge the battery back to normal
during that period. If the vehicle will only
be operated for a short period (short
drive), the battery might need to be
charged again before it could start the
vehicle again.
Completing an interrupted charge: If
the charging process has been inter-
rupted and restarted after the charger
displays a battery % of 85 or more, the
charger could go straight to Maintain
Mode (see top of this page). However, if
the original charge was started using
40A, the charge can often be completed
using the 2A rate.
13
BATTERY PERCENT AND CHARGE TIME
This charger adjusts the charging time
There are some important facts to keep
in order to charge the battery com-
pletely, efficiently and safely. The
microprocessor automatically makes
the necessary decisions. However, this
section includes guidelines that can be
used to estimate charging times.
in mind when charging a battery.
• When the display indicates 77%
charged, the battery has been
charged enough to start most vehicles
and has already been charged as
much as by many other battery
chargers.
The duration of the charging process
depends on three factors:
• When the display indicates 85%
charged, the battery has already been
charged at least as much as by most
other battery chargers.
1. Battery State – If a battery has only
been slightly discharged, it can be
charged in less than a few hours. The
same battery could take up to 10
hours if very weak. The battery state
can be estimated by using the built-in
tester (see page 10). The lower the
reading the longer charging will take.
• The battery % shown in tester mode
is an estimate based on the battery
voltage and the Battery Council
International scale. The battery %
shown in charger mode is an estimate
of the relative charge in the battery
compared to the charge it should
have if the charging process is
allowed to complete.
2. Battery rating – A higher rated
battery will take longer to charge than
a lower rated battery under the same
conditions. A battery is rated in
ampere-hours (AH), reserve capacity
(RC) and cold cranking amps (CCA).
The lower the rating the quicker the
battery will be charged.
• The battery % shown in tester mode
can be used to estimate the relative
charge time.The lower the % shown,
the longer the charge time for a given
battery.
3. Charge rate – The charge rate is
measured in amps. This charger
provides charge rates of 2A, 15A and
40A. The 100A rate is for engine start
only. The 2A rate is for charging
smaller batteries such as those
used for motorcycles and garden
tractors. Such batteries should not
be charged using the 15A or 40A
rate. The 15A and 40A rates are for
charging larger batteries. In the 40A
mode, the charger begins at a low
charge rate and increases the
charge rate if it is determined that
the battery can accept the higher
rate. All charging modes will
• The battery % shown in charger mode
is an indication of the relative
progress of the charging process. The
higher the battery % displayed, the
less charge time remains.
• The more a battery is discharged, the
faster it absorbs charge from a
charger. That means that the battery
% increases faster at the beginning of
the charging process than at the end.
In other words, it takes longer for the
battery to absorb the last few percent
of charge than the first several
percent.
decrease the charge rate as the
battery approaches maximum
charge. After the charging process
has started, the digital display can
be used to determine charging
progress by selecting the BATTERY
% mode.
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TROUBLESHOOTING
Performance problems often can be corrected by the user. Please read through this
chart for a possible solution to common problems.
PROBLEM
POSSIBLE CAUSE
SOLUTION
The battery is connected
and the charger is on,
but it isn’t charging.
The charger is in tester
mode, not charger mode. button to activate charging
and select a charge rate.
Press the CHARGE RATE
Indicator lights are lit in an You might have
Make sure nothing is
touching the control panel,
erratic manner not
explained in the “Using
Your Battery Charger”
section.
accidentally activated a
special diagnostic mode. then unplug the unit and
plug it in again.
The charger may be
defective.
Return to place of purchase
for replacement.
The CHECK (red) light
The incorrect battery type
always flashes before the may have been selected.
battery is completely
charged.
This will happen if the
Reset the charger by un-
plugging it or briefly
disconnecting it or briefly
disconnecting the negative
battery did not reach full
charge within 24 hours.
May be due to a very
large battery or a bank of battery clip. Select the
batteries requiring more desired charge rate and
power than a 40/15 Amp
battery type again, if
charger can deliver within necessary.
24 hours. The battery may
also be faulty.
Engine crank time is less Starter motor may be
Charge the battery at the
than specified.
drawing more than 100
Amps.
40A rate for 10 to 15
minutes then crank the
engine.
The green CHARGED
light turns on a few
minutes after connecting
to the battery.
The battery may be fully
charged or recently
charged, leaving the
battery voltage high
enough to appear to be
fully charged.
If the battery is in a vehicle,
turn the headlights on for a
few minutes to reduce the
battery voltage and try
charging again.
The incorrect battery type Reset the charger by un-
may have been selected. plugging it or briefly
disconnecting the negative
battery clip. Select the
desired charge rate and
battery type again, if
necessary.
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MAINTENANCE AND CARE
A minimal amount of care can keep your battery charger working properly for years.
1. Clean the clamps each time you are finished charging. Wipe off any battery fluid
that may have come in contact with the clamps to prevent corrosion.
2. Coil the input and output cords neatly when storing the charger. This will help
prevent accidental damage to the cords and charger.
3. Occasional cleaning of the case of the charger with a soft cloth will keep the finish
shiny and help prevent corrosion.
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 five 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 manufacturer. It is the
obligation of the purchaser to forward the unit together with the original receipt,
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 authorized
representative.
The manufacturer makes no warranty other than this limited warranty and expressly
excludes any implied warranty including any warranty for consequential damages.
THIS IS THE ONLY EXPRESS LIMITED WARRANTY AND THE MANUFACTURER
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 PRODUCT AND
EXPRESSLY EXCLUDES SUCH FROM THIS LIMITED WARRANTY.
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDEN-
TAL 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 THAT VARY FROM STATE TO STATE.
WARRANTY VALIDATION: The enclosed “Warranty Validation Card” must be
completed and mailed within 10 days of product purchase to activate this limited
warranty.
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