nothing much corrosive in those off gases... maybe something else could be causing the corrosion
Dwight Veinot C&C 35 MKII, *Alianna* Head of St. Margaret's Bay, NS d.ve...@bellaliant.net On Thu, Feb 26, 2015 at 8:43 PM, Rick Brass via CnC-List < cnc-list@cnc-list.com> wrote: > Josh; > > > > The off gassing from a battery is primarily: > > > > 1) Water vapor as the water evaporates with heat. This happens even > when not charging (to a very small degree) on days when the relative > humidity in the air is low. But then low relative humidity is a pretty rare > event in the air around a boat that is in the water. In most flooded > batteries this water vapor is condensed in the caps and drips back into the > cells. > > 2) Hydrogen gas that is released when the SO4 part of the sulfuric > acid bonds to the lead plates as a result of high temperatures while > charging or as the plates sulfate during longer periods of storage. > > 3) Hydrogen and oxygen gas from electrolysis at higher charge rates. > > > > Electrolysis isn’t usually much of a factor at normal charge rates. > > > > Rick Brass > > > > *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of *Josh > Muckley via CnC-List > *Sent:* Thursday, February 26, 2015 10:38 AM > *To:* C&C List; dwight > *Subject:* Re: Stus-List Batteries -- Flooded, Sealed or AGM? > > > > Dwight, > I think the theory is that the same electroisys that is breaking the > molecular bond in the water is breaking the bonds in the sufuric acid > resulting in corrosive sulfer gas. > > Josh > > On Feb 26, 2015 7:49 AM, "dwight veinot via CnC-List" < > cnc-list@cnc-list.com> wrote: > > Jake > > Not sure you can attribute that corrosion to off-gassing from your > batteries...what gases do you think cause this corrosion? Off gassing from > batteries under charging conditions usually means hydrogen gas... > > > Dwight Veinot > > C&C 35 MKII, *Alianna* > > Head of St. Margaret's Bay, NS > > d.ve...@bellaliant.net > > > > > > On Thu, Feb 26, 2015 at 7:51 AM, Jake Brodersen via CnC-List < > cnc-list@cnc-list.com> wrote: > > Edd, > > > > I prefer AGM. No noxious gases to be vented into the cabin. I have a lot > of corrosion on my electrical panel that I directly attribute to being > bathed in off-gassing from old batteries. Plus, they’re safer from an > explosion perspective, as well as if you ever end up inverted for a short > period of time. > > > > Jake > > > > *Jake Brodersen* > > *“Midnight Mistress”* > > *C&C 35 Mk-III* > > *Hampton VA* > > > > > > > > *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of *Edd > Schillay via CnC-List > *Sent:* Wednesday, February 25, 2015 11:17 AM > *To:* <cnc-list@cnc-list.com> > *Subject:* Stus-List Batteries -- Flooded, Sealed or AGM? > > > > Listers, > > > > As you know, I’m redoing the electrical systems on the > Enterprise (thanks to all for diagrams and advice). > > > > So now comes the question of what type of battery to use in my > house bank — Flooded, Sealed or AGM? What do you have on your C&C and why > do you prefer it? > > > > And, if you have flooded, how often do you top them off with > distilled water? > > > > The countdown has begun! > http://enterpriseb.blogspot.com/2015/02/launch-of-enterprise-countdown.html > > > > > All the best, > > > > Edd > > > > > > Edd M. Schillay > > Starship Enterprise > > C&C 37+ | Sail No: NCC-1701-B > > City Island, NY > > Starship Enterprise's Captain's Log > <http://enterpriseb.blogspot.com/> > > > > > _______________________________________________ > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go to the > bottom of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > > > > _______________________________________________ > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go to the > bottom of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > > _______________________________________________ > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go to the > bottom of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > >
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