Okay so I got the Fishfinder in today. Have no clue what type of power supply I should purchase for use in the canoe. Does anybody have a recommendation it would be much appreciated.
Once again Garmin 151dv Echo.

This is what I used. Others have used 10 AA holders, but this works great for me for the past 4 years with the Garmin Echo 100.

https://www.amazon.com/Battery-Holder-Snap-Connector-Corpco/dp/B01N91OF9H/ref=sr_1_39?s=electronics&ie=UTF8&qid=1501856764&sr=1-39&keywords=AA+battery+holder

I used these to attach the finder to the battery pack.

https://www.amazon.com/uxcell-2Pcs-Cable-Battery-Connector/dp/B016FD2D3C/ref=sr_1_8?s=electronics&ie=UTF8&qid=1501856569&sr=1-8&keywords=9v+battery+connection

I saw several members post setups that I liked, so I combined what I liked about them, added a few of my own variations, and now I have this. I love my set up.




The blue container holds the AA battery holder, and an additional 8 AA batteries. I've only needed the second set once, and that was on day 6 of a 6 day trip, and I had accidentally left the finder on all night. The container is screwed into the board with 2 screws and fender washers. The lid snaps on fairly tight, but I added the BDB for additional security.

You can also search "power supply" or "fish finder" on here and get way more info.

Hope this helps.

-RW