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Message: <blockquote data-quote="bhwadeuk" data-source="post: 431304" data-attributes="member: 21994">At the point in my boat renovation where I will be running electrical.  I am somewhat lost when it comes to my needs for a battery.  The boat came with a mariner 40hp that was originally pull start but was converted to electric start.  I have added an LED light bar, led courtesy lights, Bluetooth radio, bilge pump, and 2 light plug bases for front and back nav pole lights.  I will not be using a trolling motor at all as it is a dedicated duck rig.  My question is, should I run a dedicated starting battery for the motor and dedicated deep cycle for all accessories?  I would like to keep weight low and run only 1 battery if possible.  Would a dual purpose battery work in this situation as no trolling motor is being used?  Could I use only a deep cycle?  I have compartments where a group 24 battery would fit.  Any guidance would be appreciated.  Thanks.</blockquote>