OWNER’S MANUAL
Model MSC-2405
For 24-Volt Batteries
Voltage: 24
amperage: 5
Owner’s Manual
READ ENTIRE MANUAL BEFORE
USING THIS PRODUCT
00-99-000904/1008
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IMPORTANT: READ AND SAVE THIS SAFETy AND INSTRUCTION MANUAL.
1.
IMPORTANT SAFETy INSTRUCTIONS
WARNING: This battery charger is to be used for charging 24 volt bat-
teries only. Use of this charger on other batteries could lead to severe
property damage or personal injury.
1.1
SAVE THESE INSTRUCTIONS – The MSC-2405 offers a wide range of
features to accommodate the needs for home or light commercial use.
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 instruc-
tions.
1.2
WARNING: 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.
1.3
1.4
Do not expose charger to rain or snow.
Use only recommended attachments. Use of an attachment not recom-
mended or sold by Schumacher® Electric Corporation may result in a risk
of fire, electric shock or injury to persons.
1.5
1.6
To reduce the risk of damage to electric plug or cord, pull by the plug
rather than the cord when disconnecting the charger.
An extension cord should not be used unless absolutely necessary. Use
of an improper extension cord could result in a risk of fire 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 specified in the table in section 8.
1.7
1.8
Do not operate the charger with a damaged cord or plug; take it to a
qualified 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 damaged in any way; take it to a qualified service person.
(Call customer service at: 1-800-621-5485.)
1.9
Do not disassemble the charger; take it to a qualified service person
when service or repair is required. Incorrect reassembly may result in a
risk of fire or electric shock. (Call customer service at: 1-800-621-5485.)
1.10 To reduce the risk of electric shock, unplug the charger from the outlet
before attempting any maintenance or cleaning. Simply turning off the
controls will not reduce this risk.
WARNING – RISK OF EXPLOSIVE GASES.
WORKING IN THE VICINITy OF A LEAD-ACID BATTERy IS DANGER-
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OUS. BATTERIES GENERATE EXPLOSIVE GASES DURING NOR-
MAL BATTERy OPERATION. FOR THIS REASON, IT IS OF UTMOST
IMPORTANCE THAT yOU FOLLOW THE INSTRUCTIONS EACH TIME
yOU USE THE CHARGER.
TO REDUCE THE RISK OF BATTERy EXPLOSION, FOLLOW THESE
INSTRUCTIONS AND THOSE PUBLISHED By THE BATTERy MANU-
FACTURER 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.
2.
PERSONAL PRECAUTIONS
2.1
Consider having someone close enough by to come to your aid when you
work near a lead-acid battery.
2.2
2.3
2.4
Have plenty of fresh water and soap nearby in case battery acid contacts
your skin, clothing or eyes.
Wear complete eye and body protection, including safety goggles and pro-
tective clothing. Avoid touching your eyes while working near the battery.
If battery acid contacts your skin or clothing, wash immediately with soap
and water. If acid enters your eye, immediately flood the eye with cold run-
ning water for at least 10 minutes and get medical attention right away.
2.5
2.6
NEVER smoke or allow a spark or flame in the vicinity of a battery or
engine.
Be extra cautious to reduce the risk of dropping a metal tool onto the bat-
tery. It might spark or short-circuit the battery or other electrical part that
may cause an explosion.
2.7
2.8
Remove 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.
Use this charger for charging a LEAD-ACID battery only. It is not intended
to supply power 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.
2.9
NEVER charge a frozen battery.
2.10 NEVER overcharge a battery.
• 2 •
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3.
PREPARING TO CHARGE
3.1
If it is necessary to remove the battery from the vehicle to charge it, al-
ways remove the grounded terminal first. Make sure all of the accessories
in the vehicle are off, to prevent arcing.
3.2
3.3
Be sure the area around the battery is well ventilated while the battery is
being charged.
Clean the battery terminals before charging the battery. During cleaning,
keep airborne corrosion from coming into contact with your eyes, nose
and mouth. Use baking soda and water to neutralize battery acid and help
eliminate airborne corrosion. Do not touch your eyes, nose or mouth.
3.4
3.5
3.6
3.7
Add distilled water to each cell until the battery acid reaches the level
specified by the battery manufacturer. Do not overfill. For a battery without
removable cell caps, such as valve regulated lead-acid-batteries, carefully
follow the manufacturer’s recharging instructions.
Read, understand and follow all instructions for the charger, battery,
vehicle and any equipment used near the battery and charger. Study all of
the battery manufacturer’s specific precautions while charging and recom-
mended rates of charge.
Determine the voltage of the battery by referring to the vehicle owner’s
manual and 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 first.
Make sure that the charger cable clips make tight connections.
4.
4.1
4.2
CHARGER LOCATION
Locate the charger as far away from the battery as the DC cables permit.
Never place the charger directly above the battery being charged; gases
from the battery will corrode and damage the charger.
4.3
4.4
Do not set the battery on top of the charger.
Never allow battery acid to drip onto the charger when reading the electro-
lyte specific gravity or filling the battery.
4.5
Do not operate the charger in a closed-in area or restrict the ventilation in
any way.
5.
DC CONNECTION PRECAUTIONS
5.1
Connect and disconnect the DC output clips only after turning the charger
off and removing the AC plug from the electrical outlet. Never allow the
clips to touch each other.
5.2
Attach the clips to the battery and chassis, as indicated in steps 6.5, 6.6
and 7.2 through 7.4.
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6.
FOLLOW THESE STEPS WHEN BATTERy IS INSTALLED IN
VEHICLE.
A SPARK NEAR THE BATTERy MAy CAUSE A BATTERy EXPLO-
SION. TO REDUCE THE RISK OF A SPARK NEAR THE BATTERy:
6.1
6.2
6.3
6.4
Position the AC and DC cables to reduce the risk of damage by the hood,
door and moving or hot engine parts.
Stay clear of fan blades, belts, pulleys and other parts that can cause
injury.
Check the polarity of the battery posts. The POSITIVE (POS, P, +) battery
post usually has a larger diameter then the NEGATIVE (NEG, N, -) post.
Determine which post of the battery is grounded (connected) to the chas-
sis. If the 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.
6.5
For a negative-grounded vehicle, connect the POSITIVE (RED) clip from
the battery 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 carbure-
tor, fuel lines or sheet-metal body parts. Connect to a heavy gauge metal
part of the frame or engine block.
6.6
For a positive-grounded vehicle, connect the NEGATIVE (BLACK) clip
from the battery 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 carbure-
tor, fuel lines or sheet-metal body parts. Connect to a heavy gauge metal
part of the frame or engine block.
6.7
6.8
When disconnecting the charger, turn all switches to off, disconnect the
AC cord, remove the clip from the vehicle chassis and then remove the
clip from the battery terminal.
See BATTERY PERCENT AND CHARGE TIME for length of charge infor-
mation.
• 4 •
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7.
FOLLOW THESE STEPS WHEN BATTERy IS OUTSIDE VEHICLE
A SPARK NEAR THE BATTERy MAy CAUSE A BATTERy EXPLO-
SION. TO REDUCE THE RISK OF A SPARK NEAR THE BATTERy:
7.1
7.2
7.3
7.4
Check the polarity of the battery posts. The POSITIVE (POS, P, +) battery
post usually has a larger diameter than the NEGATIVE (NEG, N, -) post.
Attach at least a 24-inch long 6-gauge (AWG) insulated battery cable to
the NEGATIVE (NEG, N, -) battery post.
Connect the POSITIVE (RED) charger clip to the POSITIVE (POS, P, +)
post of the battery.
Position yourself and the free end of the cable you previously attached to
the NEGATIVE (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.
7.5
7.6
Do not face the battery when making the final connection.
When disconnecting the charger, always do so in the reverse order of the
connecting procedure and break the first connection while as far away
from the battery as practical.
7.7
A marine (boat) battery must be removed and charged on shore. To
charge it onboard requires equipment specially designed for marine use.
• 5 •
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8.
BATTERy CHARGING - AC CONNECTIONS
8.1
This battery charger is for use on nominal 100 - 240 volt circuits.
DANGER – Never alter AC cord or plug provided – if it does not fit the
outlet, have proper outlet installed by a qualified electrician. Improper
connection can result in a risk of an electric shock.
Recommended minimum AWG size for extension cords for battery
chargers:
8.2
AC input rating,
amperesa
AWG size of cord
Length of cord, feet (m)
But less
than
25
(7.6)
18
18
18
18
18
18
18
16
16
16
14
14
50
(15.2)
18
18
18
18
16
16
14
14
12
12
12
100
(30.5)
18
16
16
14
14
12
12
10
10
10
8
150
(45.6)
16
14
14
12
12
10
10
8
At least
0
2
3
4
5
2
3
4
5
6
6
8
8
10
12
14
16
18
20
10
12
14
16
18
8
8
8
6
12
8
aIf the input rating of a charger is given in watts rather than in
amperes, the corresponding ampere rating is to be determined
by dividing the wattage rating by the voltage rating ± for
example:
1250 watts/125 volts = 10 amperes
Grounding Methods
8.3
• 6 •
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9.
ASSEMBLy INSTRUCTIONS
No assembly required.
10. PRODUCT FEATURES
2
1
4
3
1. Charger Status LEDs (located on side of unit)
2. Battery Clamp Output Cord
3. 30 Pin XLR 3-12C Output Cord
4. 3/8” Dia. Ring Terminal Output Cord
11. MOUNTING CHARGER TO A FLAT SURFACE
Do not mount charger in a location with restricted air flow. The area
where the charger is to be fastened must be dry, well ventilated and
away from any combustible material and fumes.
11.1 Turn off and disconnect charger.
11.2 Place the back of the charger with mounting bracket against a secure, flat
surface.
11.3 Securely mount charger to a flat surface with a minimum of one and a half
inches of clearance on each side.
• 7 •
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12. CONTROL PANEL
12.1 POWER ON (red) LED – The red POWER ON LED lights up when the
charger is plugged in and receiving AC power.
12.2 CHARGING STATUS (yellow and green) LED – The CHARGING STA-
TUS LED glows yellow when the charger is charging and green when the
battery is charged and in maintain mode.
LED Color/Flash Pattern Explanation
Red On
AC Power Present
Charging
Yellow On
Green On
Charge Complete
13. OPERATING INSTRUCTIONS
WARNING: Failure to follow instructions may cause damage or an explo-
sion. Read the entire instruction manual before use.
13.1 Make sure that the charger is unplugged from the AC outlet.
13.2 Connect one of the three optional output cables to the charger output con-
nector.
13.3 Connect the other end of the output cable to the battery.
13.4 Plug the charger into the AC outlet. The POWER ON (red) LED will glow
to show that AC power is present. Then the green and yellow LED will
blink once as a self-test to make sure that the LED is operating properly.
13.5 After three seconds, the CHARGING (yellow) LED will glow to show that
charging has begun. If none of the LEDs glow, or if the CHARGING (yel-
low) LED does not glow, refer to the troubleshooting section. Charge time
may vary from less than one hour to 12 hours.
13.6 When charging is complete, the CHARGED (green) LED will glow and
the charger will automatically go into maintain mode. The charger is now
ready to be unplugged from the AC outlet.
NOTE: If the battery has not reached at least 18-volts after five minutes of
charging or at least 24-volts after four hours of charging, the charger will
abort the charging process and turn the yellow LED off.
• 8 •
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14. CALCULATING CHARGE TIME
To determine the time needed to fully charge your battery, you must
first determine the battery’s charge level with a hydrometer or electronic
Percent-of-Charge Tester. The following table will help you convert hy-
drometer readings to percent of charge values.
Specific Gravity
Percent of Charge
Percent of Charge
Needed
1.265
1.225
1.155
1.120
100%
75%
25%
0%
0%
25%
75%
100%
When the percent of charge and the Amp Hour (AH) rating of your battery
is known, 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 specifica-
tion sheet or the owner’s manual.
To calculate the time needed for a charge:
1. Find the percent of charge needed (a battery at 50 percent charge that
will be charged to 100 percent needs another 50 percent (.5)).
2. Multiply the Amp Hour Rating by the charge needed (.5) and divide by
the charger setting (5 amps).
3. Multiply the results by 1.25 and you will have the total time needed, in
hours, to bring the battery to a full charge.
4. Add an additional hour for a deep-cycle battery.
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 = 12.5 hours
5 (Charger Setting)
100 x .50 x 1.25 = 12.5
5
A 100-Ampere Hour Battery must charge for 12 ½ hours when using the
above example.
• 9 •
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15. MAINTENANCE INSTRUCTIONS
15.1 Before performing maintenance, unplug and disconnect battery charger
(see sections 6.7 and 7.6).
15.2 After use, unplug charger and use a dry cloth to wipe all battery corrosion
and other dirt or oil from terminals, cords, and the charger case.
15.3 Have any cracked or frayed cables replaced by an authorized service
person.
15.4 Servicing does not require opening unit, as there are no user-serviceable
parts.
16. STORAGE INSTRUCTIONS
16.1 Store charger unplugged, in an upright condition. Cord will still conduct
electricity until it is unplugged from outlet.
16.2 Store inside, in a dry, cool place (unless you’re using an on-board Marine
Charger ).
16.3 Do not store clips on handle, clipped together, on or around metal, or
clipped to cables.
17. TROUBLESHOOTING
LED GUIDE/PROBLEM POSSIBLE CAUSE
SOLUTION
The charger is plugged in No power at the AC
but the POWER ON (red) receptacle.
LED is not lit.
Check for open fuse or
circuit breaker supplying
AC outlet.
Poor electrical connection. Check power cord and
extension cord for loose
fitting plug.
The battery charger is not Call customer service
functioning properly.
(1-800-621-5485).
The battery is connected
and the POWER ON
(red) LED is on, but the
CHARGING (yellow) LED
Battery connectors are not Check for poor connection
making a good connec-
tion.
at battery. Make sure con-
necting points are clean.
is not lit and charger is not The battery is bad.
charging.
Have the battery checked
by a qualified service
person.
The battery charger is not Call customer service
functioning properly.
(1-800-621-5485).
• 10 •
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18. BEFORE RETURNING FOR REPAIR
Please do not return for repair before speaking to a customer service
representative (1-800-621-5485).
18.1 When a charging problem arises, make certain that the battery is capable
of accepting a normal charge. Use a good battery to double check all con-
nections, AC outlet for a full 120-volts, charger clamps for correct polarity,
and the quality of the connections from the cables to the output connector
and from the output connector to the battery system. The output connec-
tors must be clean.
18.2 When a battery is very cold, partially charged or sulfated, it will not draw
the full rated amperes from the charger. It is dangerous and damaging
to a battery to force higher amperage into it than it can effectively use in
recharging.
18.3 When an unknown operating problem arises, please read the complete
manual and call the customer service number for information. Doing so
will usually eliminate the need for return.
19. TECHNICAL SPECIFICATIONS
This charger is intended for use with lead-acid and gel-cell batteries only.
Electrical
Nominal Operating Voltage (VAC)
Input Voltage Range (VAC)
Input Current (A rsm max)
Output Power (W)
100 – 240
85 – 264
2.9 @ 85V 60Hz
120 nom. 130 max.
5.0
Output Current (A max)
Output Voltage (VDC nom./
range)
24 / 2 – 29.5
Mechanical
Case
Black Anodized Aluminum
7 L x 5½ W x 2 H
1.80 lbs
Dimensions (inches)
Weight
Connections
IEC 320/C14 Male on Cable
AC Power Input
DC Power Output Adapters
Option #1 – Battery Clamp Output Cord
Option #2 – 3-Pin XLR 3-12C Output Cord
Option #3 – 3/8” Dia. Ring Terminal Output
Cord
• 11 •
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20. REPLACEMENT PARTS
20.1 Battery Clamp Output Cord
38-99-001840
38-99-002111
20.2
3-Pin XLR 3-12C Output Cord
20.3 3/8” Dia. Ring Terminal Output Cord 38-99-002112
• 12 •
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21. LIMITED WARRANTy
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 WAR-
RANTy IS NOT TRANSFERABLE OR ASSIGNABLE.
Schumacher Electric Corporation (the “Manufacturer”) warrants this battery charger
for one year from the date of purchase at retail against defective material or work-
manship that may occur under normal use and care. If your unit is not free from
defective material or workmanship, Manufacturers 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 mailing charges prepaid to the Manufacturer or its authorized represen-
tatives 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 ap-
proved for use with this product. This Limited Warranty is void if the product is mis-
used, subjected to careless handling, repaired, or modified 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 fitness for a particular purpose. Further,
Manufacturer shall not be liable for any incidental, special or consequential dam-
age claims incurred by purchasers, users or others associated with this product,
including, but not limited to, lost profits, 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
specific 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.
WARRANTy VALIDATION: To activate this limited warranty, within 30 days of
product purchase you must either complete and return the enclosed “War-
ranty Card” along with the product receipt to the Manufacturer or go online to
Call Customer Service at: 800-621-5485 Monday - Friday, 7 a.m. to 5 p.m CST
• 13 •
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