6. When disconnecting the charger, always do so in reverse sequence
of connecting procedure and break first connection while as far
away from battery as practical.
FUNCTION OF THE CHARGE STATUS/FAULT INDICATOR LED
DURING CHARGING/BOOSTING
1. After connecting the Vehicle Battery Charger to the vehicle battery
and pressing the charge button, the Charge Status/Fault Indicator
will flash green for several minutes.
2. Once the Charge Status/Fault Indicator turns solid green, your
vehicle should be ready to start.
3. The light will remain solid green as the unit continues to charge/
boost unless it is either disconnected from the vehicle battery or
the D
WALT
®
20V Battery Pack is depleted, in which case it will
e
light solid red for 60 seconds before automatically shutting down.
4. Once the vehicle starts, remove the Battery Clamps from the vehicle
battery. Refer to the Notes that follow.
IMPORTANT NOTES:
• If the battery clamps are incorrectly connected with regard to polarity,
the Charge Status/Fault Indicator will flash red until the clamps are
disconnected. Remove the clamps and then reconnect them with
correct polarity.
• If the voltage of the D
WALT
20V Battery Pack is low or it has
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insufficient output power, the Charge Status/Fault Indicator will
light solid red for 60 seconds before the Vehicle Battery Charger
automatically shuts down. Refer to the "Troubleshooting" section.
• If the D
WALT
20V Battery Pack is overheated or is too cold, the
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Vehicle Battery Charger will automatically shut down. Refer to the
"Troubleshooting" section.
• If the Battery Clamps are disconnected from the vehicle battery, the
Vehicle Battery Charger will automatically shut down.
CAUTION –
To reduce the risk of property damage:
DXAE20VBB_ManualENSP_072821.indd 12-13
DXAE20VBB_ManualENSP_072821.indd 12-13
• Excessive engine cranking can damage the vehicle's starter
motor. If the engine fails to start after the recommended number
of attempts, discontinue jump-start procedure and look for other
problems that need to be corrected.
• If vehicle fails to start, turn off the ignition, disconnect the booster
and contact a qualified technician to investigate why the engine did
not start.
Operating the Unit's Dual USB Ports
The dual USB Ports are located on the front of the unit and are
controlled by the USB Power Button. Refer to the "Fig. 1" to locate.
1. Press the USB Power Button on the unit once. The Boost Status/
Fault Indicator will light amber, indicating both USB ports are ready
to use.
2. Plug the USB-powered device into the USB port(s) and operate
normally.
3. Press the Power Button on the unit a second time to turn both
USB ports off.
IMPORTANT NOTES:
• Do NOT use the USB Ports while you are attempting to
charge an vehicle battery. The Charge Status/Fault Indicator will
not reflect USB Port usage (by lighting solid amber) when the unit
is used in Charge mode.
• Make sure the USB ports are turned off when the unit is being
stored.
• When the USB Ports are in use, the unit will monitor for the
following USB fault conditions on all the USB Ports:
– If a low D
WALT
20V Battery Pack battery voltage fault exists,
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the Charge Status/Fault Indicator will flash amber for 60 seconds
and then the unit will shut down.
– If an overload or short-circuit occurs in either USB port, the
Charge Status/Fault Indicator will flash red.
12
In either of these cases, disconnect the USB-powered device
immediately and make sure the unit's D
WALT
®
20V Battery Pack
e
does not need to be recharged. Allow the unit to cool down for
several minutes before attempting to use the USB Ports again.
If a fault occurs again, make sure that the total draw of the USB
devices plugged into the USB Ports does not exceed 2.1A (5V).
If an individual USB device is within specifications and the fault
occurs, have the USB device checked for malfunction and do not
continue to use it with these USB Ports.
• This unit's USB Ports do not support data communication. They
only provide power to external USB-powered devices. The USB
Ports provide a total of 2.1A (5V).
• Some USB-powered household electronics may not operate with
this unit's USB ports. Check the manual of the corresponding
electronic device to confirm that it can be used with this type of
USB port.
Operating the Unit's Led Lights
The dual LED Lights are located on the back of the unit and are both
controlled by the LED Light Power Button. Refer to the "Fig. 2a" to
locate.
1. Press the LED Light Power Button once to turn both LED lights on.
2. Press the LED Light Power Button again to turn both LED lights off.
NOTICE:
Make sure the LED Lights are turned off when it is being
stored.
Maintenance Instructions
Never submerge the unit in water. If the unit gets dirty, gently clean the
outer surfaces of the unit with a soft, dry cloth.
There are no user-replaceable parts. Periodically inspect the condition
of connectors and wires. Contact manufacturer to replace any
components that have become worn or broken.
Troubleshooting
Problem
Possible Solution
The unit will not
Make sure the translucent Charge Button
charge the vehicle
has been pressed to turn the Charger on.
battery
Make sure a proper polarity cable
connection has been established.
The vehicle battery may in fault condition
and cannot accept the charging.
Manufacturer recommends taking it to
a certified automotive service center for
evaluation.
The voltage of the D
WALT
20V Battery
®
e
Pack may be low or it has insufficient
output power. The Charge Status/Fault
Indicator will light red for 60 seconds before
the Vehicle Battery Charger automatically
shuts down. Disconnect the Vehicle
Battery and fully charge the D
20V Battery Pack, following the directions
included with the dedicated D
WALT
e
Battery Pack Charger.
If the D
WALT
®
20V Battery Pack is
e
overheated or is too cold, the Battery
Charger will automatically shut down.
Disconnect the Battery Clamps and allow
the unit to cool down or warm up for a
period before resuming any operation.
13
WALT
®
e
20V
®
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