5. When disconnecting charger, always do so in reverse sequence of connecting procedure and break first
connection while as far away from battery as practical.
OPERATING INSTRUCTIONS
Upon making a proper battery connection, plug the AC power cord into an AC receptacle. All unit LEDs will light
momentarily, then only the LEDs corresponding to power ON and the default charging settings (12V, AGM) should
stay lit. The charger is now in Standby Mode. If the Reverse Polarity Indicator LED (indicated by two arrows point-
ing towards each other) illuminates along with and audible "beep", disconnect from AC power supply immediately
and determine the cause of the alarm. See "Battery Manager IV Features" for a list of conditions that might cause this
alarm.
1. Choose a battery voltage charge setting. The default setting is the 12V mode, which will apply to most charging
applications. To charge in 6V mode, push the voltage button until the "6V" LED is illuminated.
2. Choose a battery type setting. The default setting is AGM (corresponding to AGM and Gel Cell style batteries). To
charge Standard and Maintenance Free flooded acid batteries, push battery type button until the "STD" LED is lit.
3. Press the "START" button and the "ON" LED and "Charging" LED (indicated by an empty battery) will illuminate.
The charger will automatically commence and complete the charging process. Note: If the Battery Fault LED illumi-
nates (indicated by a slash diagonally through a circle), disconnect immediately, disconnect from AC power imme-
diately and determine the cause of the alarm. See "Battery Manager IV Features" for a list of conditions that might
cause this warning.
4. When the charging process is complete, the "CHARGE COMPLETE" LED (indicated by a full battery) will illuminate.
This indicates that the initial charging cycle is complete and the charger is now in Maintenance Mode, and will
resume charging as needed to keep your battery in optimal condition.
5. When you are finished with the charging process, disconnect AC power cord from AC outlet, then disconnect DC
leads from vehicle ground and battery in the reverse sequence of the connection procedure.
IMPORTANT SAFETY INSTRUCTIONS - READ THESE PRIOR TO CONNECTING BATTERY MANAGER IV
1. Do not expose charger to rain or snow.
2. Use of an attachment not recommended or sold by
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may result in a risk of fire, electric shock, or
injury to persons.
3. To reduce risk of damage to electric plug and cord, pull by plug rather than cord when disconnecting charger.
4. 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 extension cord must be used, make sure:
a. That pins on plug of extension cord are the same number, size, and shape as those of plug on charger.
b. That extension cord is properly wired and in good electrical condition.
c. That the wire size is large enough for the length of cord as specified below.
L
ength
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C
ord
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n
f
eet
:
25
50
100 150
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C
ord
:
18
18
16
14
5. Do not operate charger with damaged cord or plug.
6. Do not operate charger if it has received a sharp blow, been dropped, or otherwise damaged in any way; call
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Customer Service at 800-345-5789.
7. Do not disassemble charger; incorrect reassembly may result in a risk of electric shock or fire.
8. Monitor battery charger daily when using it to maintain battery for extended periods.
9. WARNING – RISK OF EXPLOSIVE GASES.
a. Working in vicinity of a lead-acid battery is dangerous. Batteries generate explosive gases during normal bat-
tery operation. For this reason, it is of utmost importance that each time before using your charger, you read this
manual and follow the instructions.
b. To reduce risk of battery explosion, follow these instructions and those published by the battery manufacturer
and the manufacturer of any equipment you intend to use in the vicinity of the battery. Review cautionary mark-
ings on these products and in the engine compartment.
