Mark
Good thinking. You don't want to use underrated components especially with high amperage battery banks.
Capt. Mike
Sent from on board BIANKA
http://biankablog.blogspot.com
Hi Mike,
I thought about using a 1-2-both switch but was not comfortable with the close proximity of the terminals on the switch and the 32 volt max voltage rating (Blue Sea). The single on/off Blue Sea switch that I used is rated at 48 volts. I spoke with someone at Blue Sea and they said that there was enough margin in the rating for my use.
Thanks,
Mark
Santa Cruz
--- In electricboats@yahoogroups.com, "Capt. Mike" <biankablog@...> wrote:
>
> Many boats have a 1, 2, or both battery
> switch for there 12 volt systems. On mine switch 1 was for the starter battery and two was for the house 12 volts (two group 27 gel batteries in parallel ). When I converted to electric I was able eliminate the starter battery and now have each house battery on it's own switch but, I operate in the Both position BTW. It should work the same with two 48 volt banks. Just make sure your wiring and switch can handle the increased current. Also as someone else mentioned if the batteries are not equally charged the higher charged one will drain into the weaker until they are equal.
>
> Capt. Mike
> Sent from on board BIANKA
> http://biankablog.blogspot.com
>
> -----Original Message-----
> From: Dennis Wolfe <dwolfe@...>
> Sender: electricboats@yahoogroups.com
> Date: Fri, 22 Jul 2011 08:48:15
> To: <electricboats@yahoogroups.com>
> Reply-to: electricboats@...: Re: [Electric Boats] two banks
>
> On 7/22/2011 1:29 AM, acsarfkram wrote:
> >
> > My EP system has two separate 48 volt, 100ah battery banks with a
> > common negative. If I switched both on at the same time would I get
> > one bank at 200ah? There is a diagram here;
> > http://groups.yahoo.com/group/electricboats/photos/album/237790029/pic/72846009/view?picmode=large&mode=tn&order=ordinal&start=1&dir=asc
> > <http://groups.yahoo.com/group/electricboats/photos/album/237790029/pic/72846009/view?picmode=large&mode=tn&order=ordinal&start=1&dir=asc>
> >
> > I've always figured I would fry something if I turned both on but
> > someone mentioned that it would just act as one 48 volt bank with both
> > switches on.
> >
> > Thanks,
> >
> > Mark
> > Santa Cruz
> >
> >
> yes
>
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