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Engine Start Mode
1. Set the ON/OFF switch to the OFF
(center) position.
2. Connect the charger to the battery and
AC power, as explained in sections 6
and 7.
3. With the charger plugged in and
connected to the battery of the vehicle,
set the ON/OFF switch to the Engine
Start
position. If the battery is
properly connected, the yellow/orange
Engine Start
the display will show the current voltage
of the battery. If the display shows "0.0",
check the battery connections.
4. Use the Rate Selection
select either the 12V
or 6V
Engine Start rate.
5. Press the START button to enable the
Engine Start output. The display will
show "ON".
6. When the Digital Display shows "Rdy",
crank the engine until it starts or 5
seconds pass. If the engine does not
start within 5 seconds, wait 45 seconds
before attempting to crank the engine
again.
NOTE: After 3 minutes in Engine Start
mode, the charger will allow the charger
and the battery to cool down for 180
seconds. If the engine fails to start, use
the 50A Boost mode to put energy into
the battery for several minutes before
attempting to crank the engine again.
7. After the engine starts, press the STOP
button, set the ON/OFF switch to the
OFF (center) position, unplug the AC
power cord and finally disconnect the
battery clamps from the vehicle, as
explained in sections 6 and 7.
8. Clean and store the charger in a dry
location.
ABORTED CHARGE
If charging cannot be completed normally,
charging will abort. When charging aborts,
the charger's output is shut off, and the
display will show "bad bat" and an error
code. Do not continue attempting to charge
this battery. Have it checked or replaced.
LED will light solid and
button to
Engine Start
DESULFATION MODE
The display will show "SUL" when a sulfated
battery is detected, and the charger will go
into desulfation mode. If the desulfation is
not successful after 10 hours, the charger
will go into abort mode and the display will
show "bAd / bAt / F02".
COMPLETION OF CHARGE
Charge completion is indicated by the
CHARGED/MAINTAINING
LED. When lit, the charger has switched to
the maintain mode of operation.
MAINTAIN MODE
(FLOAT MODE MONITORING)
When the CHARGED/MAINTAINING
(green) LED is lit, 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 DSR131 charges and maintains
6V 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.
FAN OPERATION
It is normal for the fan to be on all of the
time. Keep the area near the charger
clear of obstructions to allow the fan to
operate efficiently.
• 7 •
(green)