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Hello all, I have a 2017 220s, my dealer just informed me that it needed jumped before they could perform the annual maintenance today, what is the typical battery life for a boat? I really don’t think I drain the batteries that much or at all throughout the year, certainly not as much as others do.
Thanks for any input!!

In very general terms 3-5 years is a good run for a battery. Obviously maintenance plays a big part in that, which I found out the hard way with my golf cart this year. $600 lesson I won't soon forget...

Oh man!! That’s rough sorry to hear. I think I’ll look into some new ones I guess!

Did you maintain them this off season. Where does the boat sit in the off season. Do you remove them and bring them in doors. Are they excluded from the 5 year warranty from Cobalt? 3-5 is norm.

I'm normally diligent about battery maintenance having growing up with these MN winters but just this week pulled a neglected Interstate extra battery out of my Maker One that has been sitting in the boat along side the two connected main batteries. It was intended as a backup and was in the boat not connected nor charged at all since I bought it new in June of 2017. I expected it to be dead and not take a charge and was ready to replace it. To my surprise it had 56% charge, showed 12.2 volts, had full water levels, and charged and tested perfect after being neglected for almost 3 years including sitting in an unheated storage through the brutal MN winters. I'm normally lucky to get 4 years out of a car battery and for boats I expect the same but it appears they sometimes can take some neglect. I'm running power out on my dock this year partially so I can do a better job of making sure my batteries are better maintained.

and AGM batteries that I'm getting in all my powersports.....