Stus-List Marine Batteries + ventilation

Jake Brodersen captain_jake at
Tue Sep 6 18:43:39 EDT 2016



My battery box has a fairly large hole going into the engine compartment as well.  It appears to be original.  The engine compartment is ventilated, although not as well as I would hope.  Better to vent into the engine compartment than into the cabin.  My batteries are under the quarterberth.  This is also why I prefer AGM batteries, no fumes to worry about.  Yes, the Optima batteries are AGM, not gel.




Jake Brodersen

C&C 35 Mk-III “Midnight Mistress”

Hampton VA




From: CnC-List [mailto:cnc-list-bounces at] On Behalf Of Kevin Paxton via CnC-List
Sent: Monday, September 5, 2016 15:13
To: cnc-list at
Cc: Kevin Paxton <kpaxton at>
Subject: Re: Stus-List Marine Batteries


Thanks for the suggestions and information everyone! 


Think I'll probably go the AutoZone Duralast option. Don't want to dump a lot of money in to it right now and finances are a little tight. I will however probably get a hardwired charger/maintainer for them to try and keep them in optimal condition. One question though, They are currently in battery boxes under the quarter berth with a hole drilled into the engine compartment. Is this safe for flooded batteries? Should they be relocated? If so, I have no clue where would be a good safe place with enough space for them. 

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