Forum | Battery for Fish Finder

OutdoorFrontiers said:

I would assume that your trolling motor and starting batteries are fairly close together, right?

I'd try it on one battery first and see how things work.  Then, if you're getting odd interferance or the locator cuts out try it on the other battery. 

Then if that doesn't work out for you, get the accessory battery.  Normally though, Lil Mule is right and locators don't have a large drain on the batteries….

I have a pull start . So you think I should run both the TM and the FF off that one battery?

Generally when run off the trolling motor after using ahwile the fish finder blanks out as being robbed every time you hit the troller of needed voltage.

Most of the time its run off the existing start batttery,it takes very lil power,,but doesnt like power interuptions.

Others more in tune with your setup ,surely will post a comment.