Malibu Boats Response lx, Owner'S Manual

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Battery
A minimum of 650 cold cranking amps is the recommended battery size for 2007 models
except 8.1 L engines. 8.1 L engines require a minimum of 800 cold cranking amps.
Do not connect
battery cables to
incorrect Terminal
Post
±. Doing so
may cause a
reverse polarity
current to run through your
electrical system and cause
damage to your engine and other
electrical components. Damage
done to your boat due to
incorrect terminal placement is
not covered under your Malibu
warranty.
Check your battery terminals frequently
for corrosion and tightness. Clean
terminals with a baking soda and water
solution and a wire brush. Also, check
the fluid levels in the cells. Usually, a level approximately 1/4 to 1/2 in. above the plates
is sufficient. If needed, fill with distilled water. Some batteries are sealed and this process
is not necessary. Read directions when applicable.
Electrical Distribution-Battery Switches:
All main engine battery cables for 2007 are the larger, 2/0 size. Always use a
Starter/Cranking battery, minimum size of 650 Cold Cranking Amps on the big cable.
This is the starter or cranking circuit.
There are also a set of smaller #2 AWG battery cables with the positive/red coming from
an 80-AMP main circuit breaker (on the smaller boats, a #6 AWG cable and a 60-AMP
main breaker). These smaller cables are the feeder circuit to the boats breakers and
switches. These are referred as the House circuit.
#1 on a single battery system:
Both the cranking circuit and the house circuit are connected to the same battery. One
battery running everything all connected together.
#2 on a dual battery system:
With a battery selector switch commonly called a “battery isolator switch”; both the
house and the cranking circuits are always connected together at the selector switch. You
have the ability to switch between 1-2 or all of the batteries to connect to the house and
starter circuits. The current to charge the batteries, will come from the starter circuit,
flowing from the engine alternator to the battery switch common terminal. When the
engine is running you will have the ability to charge ether #1 or #2 or both of the batteries
at the same time. When the engine is off, you will pull current for both the house and
4-10
Figure 4-4. Battery Level
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