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even be moved to the other side of the shuttle.
Using the MarCum Digital Sonar can be as simple as turning it on—the factory settings will come
on automatically and allow you to use the Digital Sonar in the most popular configuration.
Be sure to explore all the options available to customize your Dashboard Display. With five
different sonar portals, four color palettes, two cone angles, and a myriad of other settings, there
are many possibilities. Changing your settings is easily done on the fly but experimenting while
using the simulator at home will help you learn the “flow” of the menu and settings.
Battery Charging
Your MarCum system comes with a 3-stage battery charger. This style of charger has proven to
be the most effective and easiest to use of all charging systems available. Because this is a
3-stage charger, there is no danger of overcharging your battery. When properly cared for, a
LiFePO4 battery will last for 2000 charge cycles. Batteries are made to be used, and they need
to be used to make the most of them. The most important thing you can do is to promptly
recharge your battery after each use. Not charging your battery immediately after use is the
number one thing that leads to battery failure.
For safety reasons, it is recommended that you place your system on a flat, hard surface like
cement or tile when charging it, away from any flammable materials. Be sure to disconnect the
charger from the wall when not in use and avoid leaving your battery hooked up to the charger
for extended periods of time.
When you get home from a trip, put your battery on charge right away and leave it there
overnight, or for around 4-6 hours. Likewise, on the night before an ice fishing trip, put it on the
charger again to ensure a charge. Again, there is no danger of overcharging your battery. We
often talk to people who hesitate to charge their battery after each use for fear that the battery
will develop a “memory” and this will lead to a shortened run time—THIS IS FALSE!!! ALWAYS
CHARGE YOUR BATTERY AFTER EVERY USE!!! Be sure, to use the charger that came with
your system, or a similar one that is between .5 amp. and 3 amp. Using a larger charger, like you
would use on a car, truck, RV, or boat is likely to cause damage to the battery. There is really no
danger of overcharging your battery with a low amp charger, and most chargers automatically go
into “maintenance mode” once a full charge has been achieved.
TO CHARGE YOUR BATTERY:
Your battery has a wiring harness attached to it that has “piggyback” terminals on it, enabling
you to keep the power cord from the unit attached to the battery always, as well as having the
wiring harness with receptacle for your charger attached always. To charge, simply couple the
end of the charger with the end of the wiring harness. It is normal for a green light to appear on
the charger now if the charger is plugged into the battery only. It is also normal for the light on
the charger to be green if it is just plugged into the wall. When it is plugged into the wall and
battery, you will see a red LED light appear on the charger. If the light is red, the battery is being
charged. When your battery is fully charged, this red light should change to green. If it is time to
go fishing and the light has not turned green, go fish and try to allow a longer charging period
next time.
Batteries are an expendable item and must be replaced periodically. The batteries that we use
are the “LiFePO4” variety, they are 12 volts 10 amps and have a life span of approximately 2000
charge cycles. The more amps the battery has, the longer it will run on a full charge. Your unit
can be powered off any battery that is 12 volts, even a large automotive or deep cycle battery. If
you are having difficulty with the charging process, please see the Charger Troubleshooting
section at end of the manual. If you need to remove the battery, slide the power cord leads from
the battery. Remove the strap that is holding the battery in place and lift the battery out.
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