Parallel Batteries?

[Big Country 08]

Is my current system considered in parallel. I have a 3 battery system. One for starting each motor and house battery. The batteries are not tied together except to the charger.

The starboard starting battery went bad and I am trying to determine if I should replace all 3

Thanks in advance

Country

[TomGlenBurnie]

there are several good good threads that deal with this subject.
look back, and you can learn good stuff.
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I suggest that you put the third battery downstream from a " battery combiner "
Yandina has a good one.
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if ?'s call tom g 410 627 0504
good luck.