Originally Posted by
Cray
Your finder needs to be on a seperate battery from trolling motor. Be it cranking battery or stand alone. These new finders are very voltage sensitive. After running troller for a while the voltage naturally starts to drop and at some point when you turn it on that initial drop from motor loading knocks it off line. Even though you have enough to run troller it's not high enough to keep finder powered up..
X2!
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