1 hour ago, slonezp said:

If I never hear the word battery again, I will be a happy man. In the last 3 months I replaced 4 batteries in the boat, one in my truck, and 1 in the ol lady's car   FWIW, for the trolling motor I went with 3 group 31 wet cell NAPA deep cycle batteries which are made by Deka. $128 a piece

 

That's a better price than I got for Deka's. I paid $155 ea for group 31

35 minutes ago, slonezp said:

Got 6 years out of both the car and truck batteries. 4 out of the boat starting battery it froze this winter while sitting outside at the dealer waiting to get winterized. As far as the TM batteries, 2 of them were group 27 Dynamic batteries that the dealer installed when the boat was new. The 3rd was a group 29 Everstart that I installed a year later when I upgraded to the 36v TM. I was losing performance last fall and I'm sure some of that had to do with them being mismatched. I figured what the hell, instead of chancing another year I'll just replace them. Based on my research, as far as wet cells are concerned, the Deka's are top of the line. All 3 have a manufacture date of 01/17 so they haven't been sitting on the shelf like what I've seen at walmart. 

 That's pretty good.  I'm a fan of the whole sale change out too - like starting fresh.

Thanks for the Deka info - but frankly, I don't feel I'm being overly optimistic expecting the current gear to remain viable for at least a few more seasons.

(he say with his finger, toes & eyes all crossed)

A-Jay

Yeah 110% positive I'm going agm. When Wheelers boat broke down on Cherokee it was due to battery issues. Just read he was running a 36v lithium in his Legend. Yeah def not a good thing for a brand new battery.