I would like to know what most fish finders are powered by or what they can be powered by?

Question

what are fishfinders powered by or what kind of battery can be used and is it possible to have a small none electric start boat to have a fishfinder

Answer 1

12v batteries or AA batteries for portables. You CAN get a portable for a non electric boat. I have an Eagle Cuda that uses 8 AA batteries. I've heard of some that use C and D cell batteries, never seen one though! Here's a link to check out portables. http://www.cabelas.com/cabelas/en/templa...  The Eagle Cuda 168.  http://www.basspro.com/webapp/wcs/stores...

Answer 2

I only know of fish finders that run off of a 12 volt battery

Answer 3

My fishfinder runs on a 12V marine starter battery. Optima makes a d**n good marine battery. However if you do not have a way to recharge you battery on the boat then go with a 12V Deepcycle battery. Deepcycle batterys are made to last longer  but lowering the amperage that you need to run your equipment.  For fishfinders you do not need high amperage... about 5 at the most. your engine battery is designed to put out up to 600 amps. So, you best bet would be to go with a lower amp - deep cycle - marine battery. Walmart has 2 different brands to include the optimas for 80 - 100 bucks depending on where you live