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Old 03-10-2010, 01:22 PM   #2
Gino
Senior Member
 
Join Date: Mar 2009
Posts: 520
use a sperate battery for each, Id use a 6-8volt 12 amp hour for the bait tank,

I thin most fish finders use a 12 volt. even though it drawls low, a Bait tank pump will drain your battery pretty fast.
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