The C-Brats Forum Index
HomeForumsMy TopicsCalendarEvent SignupsMemberlistOur C-DorysThe Brat MapPhotos

Solar Charging Battery Bank(s)
Goto page Previous  1, 2
 
Post new topic   Reply to topic    The C-Brats Forum Index -> Electrical and Wiring
View previous topic :: View next topic  
Author Message
thataway



Joined: 02 Nov 2003
Posts: 17001
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Mon Jul 16, 2018 4:41 pm    Post subject: Reply with quote

Well, Foggy, we do agree on that many will do fine with just a volt meter. But even in the 80's I had gone over to a digital volt meter, and managed a 1200 amp hour battery banks for about 100,000 ocean miles over 8 years, with just the digital volt meter. On the other hand, you are measuring the amps in and out with the Watt Wizard, so you do have modern technology, and are not a Luddite.


I find advancing technology one of the interesting challenges of boating. Currently, I am trying a liFePO4 battery of usable 110 amp hours, weight 29#, (and a fraction of the size of an 8D or two group 31's), for the Freezers/refrigerators, and with the Li battery technology the old "volt meter" is no longer valid. Victron Energy recommends a Peukert's exponent of 1.05 rather than the accepted 1.25 for lead acid batteries. I suspect that lead acid batteries (including AGM) will be a thing of the past in a few years.

_________________
Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL
Back to top
View user's profile Send private message Send e-mail
Foggy



Joined: 01 Aug 2013
Posts: 1093
City/Region: Traverse City; Northern Lake Michigan
State or Province: MI
C-Dory Year: 2014
C-Dory Model: 26 Venture
Photos: W B Nod
PostPosted: Wed Jul 18, 2018 7:07 am    Post subject: Reply with quote

that away wrote:
SNIP To charge the engine battery from the solar system, you need only to parallel the two battery banks, This gives you one bank of 5 group 31 AGM batteries. SNIP


Seems simple, direct, a complete great answer to the post. Is it?

With 3 battery switches (start, parallel, house) does the above hold true regardless
of the ON/OFF status of the start and house bank switches? Then there are
ignition switches to consider...

Aye.
Grandpa used to say, "The more you know, the more you learn there is to know."
Grandma used to say, "Most of us don't know what we don't know."

_________________
It's difficult to win an argument with a smart person and almost impossible to win an argument with a dumb one. So, why do it?
Back to top
View user's profile Send private message Send e-mail
thataway



Joined: 02 Nov 2003
Posts: 17001
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Wed Jul 18, 2018 9:31 am    Post subject: Reply with quote

Quote:
Solar (165W) properly wired to charge House bank only


To charge the generator, since they are all the same size and type, one only needs to connect the two battery banks together--that means parallel.. All other switches are extraneous to this goal.
Back to top
View user's profile Send private message Send e-mail
Foggy



Joined: 01 Aug 2013
Posts: 1093
City/Region: Traverse City; Northern Lake Michigan
State or Province: MI
C-Dory Year: 2014
C-Dory Model: 26 Venture
Photos: W B Nod
PostPosted: Wed Jul 18, 2018 10:59 am    Post subject: Reply with quote

Thank you.

Aye.
Back to top
View user's profile Send private message Send e-mail
thataway



Joined: 02 Nov 2003
Posts: 17001
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Wed Jul 18, 2018 1:06 pm    Post subject: Reply with quote

Oops, "Generator" should be solar panels.
Back to top
View user's profile Send private message Send e-mail
Foggy



Joined: 01 Aug 2013
Posts: 1093
City/Region: Traverse City; Northern Lake Michigan
State or Province: MI
C-Dory Year: 2014
C-Dory Model: 26 Venture
Photos: W B Nod
PostPosted: Wed Jul 18, 2018 6:19 pm    Post subject: Reply with quote

Oops = no harm done.

Aye.
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    The C-Brats Forum Index -> Electrical and Wiring All times are GMT - 6 Hours
Goto page Previous  1, 2
Page 2 of 2

 
     Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum



Page generation time: 0.042s (PHP: 74% - SQL: 26%) - SQL queries: 23 - GZIP disabled - Debug on