Schumacher SE-4020-CA Owner'S Manual Download Page 7

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3.

Plug the charger AC power cord into the

AC outlet.

4.

With the charger plugged in and connected

to the battery of the vehicle, set the ON/OFF

switch to the Engine Start position. The

Engine Start LED will illuminate.

5.

Crank the engine until it starts or 5

seconds pass. If the engine does not

start, wait 3 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, boost the battery 

for 5 minutes before cranking the engine.

6.

If the engine fails to start, use the

40A Boost rate for 5 minutes before

attempting to crank the engine again.

7.

After the engine starts, move the ON/OFF

switch to the OFF position and unplug the

AC power cord before disconnecting the

battery clamps from the vehicle.

8.

Clean and store the charger in a dry

location.

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.

AUTOMATIC CHARGING MODE

When an Automatic Charge is performed, 

the charger switches to the maintain mode 

automatically after the battery is charged. 

ABORTED CHARGE

If charging cannot be completed normally, 

charging will abort. When charging aborts, 

the charger’s output is shut off and the 
CHARGING 

 (yellow/orange) LED will 

flash. The digital display will show an error 

code (see the Troubleshooting section for a 

description of the error codes).To reset after 

an aborted charge, unplug the charger from 

the AC outlet, wait a few moments and plug 

it back in.

DESULFATION MODE

Desulfation could take 8 to 10 hours.  

If desulfation fails, charging will abort and 

the CHARGING 

 (yellow/orange) LED 

will flash.

COMPLETION OF CHARGE

Charge completion is indicated by the 

CHARGED/MAINTAINING 

 (green) 

LED. When pulsing, the charger has 

switched to the maintain mode of operation. 

MAINTAIN MODE  

(FLOAT-MODE MONITORING)

When the CHARGED/MAINTAINING 

(green) LED is pulsing, 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 charger has to provide its maximum 

maintain current for a continuous 12 hour 

period, it will go into abort mode (see Aborted 

Charge section). This is usually caused by a 

drain on the battery or the battery could be 

bad. Make sure there are no loads on the 

battery. If there are, remove them. If there are 

none, have the battery checked or replaced. 

MAINTAINING A BATTERY

The SE-4220-CA charges and maintains 

6 and 12 volt batteries, keeping them at  

full charge. 

NOTE:

 The maintain mode technology 

allows you to safely charge and maintain a 

healthy battery for extended periods of time. 

However, problems with the battery, electrical 

problems in the vehicle, improper 

connections or other unanticipated conditions 

could cause excessive current draws. As 

such, occasionally monitoring your battery 

and the charging process is required. 

GENERAL CHARGING NOTES

Fan:

 It is normal for the fan to be on all the 

time. Keep the area near the charger clear of 

obstructions to allow the fan to operate 

efficiently. 

MAINTENANCE AND CARE

A minimal amount of care can keep your 

battery charger working properly for years.

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.

Occasionally cleaning the case of the

charger with a soft cloth will keep the finish

shiny and help prevent corrosion.

Coil the input and output cords neatly when

storing the charger. This will help prevent

accidental damage to the cords and charger.

Store the charger unplugged from the AC

power outlet in an upright position.

Store inside, in a cool, dry place. Do not

store the clamps on the handle, clipped

together, on or around metal, or clipped to

the cables.

Summary of Contents for SE-4020-CA

Page 1: ...S OWNERS MANUAL AND READ BEFORE EACH USE This manual will explain how to use the battery charger safely and effectively Please read and follow these instructions and precautions carefully Model SE 4020 CA Automatic Battery Charger ...

Page 2: ...NT SAFETY INSTRUCTIONS 3 PERSONAL SAFETY PRECAUTIONS 3 ASSEMBLY INSTRUCTIONS 4 GROUNDING AND AC POWER CORD CONNECTIONS 5 CONTROL PANEL 5 OPERATING INSTRUCTIONS 6 MAINTENANCE AND CARE 7 TROUBLESHOOTING AND ERROR CODES 8 ...

Page 3: ...quired Keep out of reach of children To reduce the risk of electric shock unplug the charger from the outlet before attempting any maintenance or cleaning Do not use an extension cord Always charge the battery in a well ventilated area Do not set the charger on flammable materials such as carpeting upholstery paper cardboard etc WARNING RISK OF EXPLOSIVE GAS Operate the charger as far away from th...

Page 4: ...screws provided 2 Assemble the wheels and axle Hold the axle upright on the floor or work surface Then using a hammer tap one of the axle caps onto the top end of the axle Be sure to tap the axle cap on straight Slide both wheels onto the axle with the recessed hubs facing out as shown Install the second axle cap 3 Mount the axle to the charger Place one end of each bracket into the slot on the bo...

Page 5: ...ger is charging a battery During timer operation the display shows the remaining time When the charger goes into charging mode the display will automatically change to ON to show charging has started If you manually stop the charging process by pressing the Rate Selection button before the battery is fully charged the display will show OFF NOTE During charging the display will go into sleep mode a...

Page 6: ...nd then remove the clamp from the battery terminal CHARGING A BATTERY OUTSIDE OF THE VEHICLE 1 First place battery in a well ventilated area 2 Set the ON OFF switch to the OFF position 3 Clean the battery terminals 4 Connect a 24 inch long 6 gauge AWG insulated battery cable to the NEGATIVE NEG N battery post i e jumper cable not provided 5 Connect the POSITIVE RED charger clamp to the POSITIVE PO...

Page 7: ...D MAINTAINING green LED When pulsing the charger has switched to the maintain mode of operation MAINTAIN MODE FLOAT MODE MONITORING When the CHARGED MAINTAINING green LED is pulsing 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 charger has to provide its maximum maintain current for a continuous 12...

Page 8: ... getting too hot thermal runaway The charger automatically shuts the current off if it detects the battery may be getting too hot Have the battery checked or replaced If you get an error code check the connections and settings and or replace the battery Troubleshooting PROBLEM POSSIBLE CAUSE REASON SOLUTION Charger will not turn on when properly connected AC outlet is dead Poor electrical connecti...

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