Best solar panels for the buck - Page 6 - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Electrical Systems
 Not a Member? 


Like Tree2Likes
Reply
 
LinkBack Thread Tools
  #51  
Old 05-13-2012
Beneteau 411
 
Join Date: Nov 2010
Posts: 387
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 4
prroots is on a distinguished road
Re: Best solar panels for the buck

We're getting ready to put the boat on the hard for the hurricane season. What to do with the panels? We'll leave them in place, but should we cover them to prevent collection or simply disconnect them from MPPT controller and let them sit at Voc? We're afraid to leave them in operation without any load whatsoever for fear of overcharging our 4 golf cart batteries.
Pete
Reply With Quote Share with Facebook
  #52  
Old 07-29-2012
Beneteau 411
 
Join Date: Nov 2010
Posts: 387
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 4
prroots is on a distinguished road
Re: Best solar panels for the buck

We ended up staying at a slip with shore power available. We just decided to disconnect panels from solar controller because our Morningstar MPPT controller was starting each day out in the bulk phase. That doesn't make sense since we have battery charger on continuously. We're afraid of needlessly boiling off liquid from our lead acid batteries. Comments?
Pete
Reply With Quote Share with Facebook
  #53  
Old 07-29-2012
Large Member
 
Join Date: May 2007
Location: Texas
Posts: 1,000
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 8
mdbee is on a distinguished road
Re: Best solar panels for the buck

Bad charger? Bad battery? Check to see how much load you are pulling? You need to do some detective work.
Reply With Quote Share with Facebook
  #54  
Old 07-30-2012
Beneteau 411
 
Join Date: Nov 2010
Posts: 387
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 4
prroots is on a distinguished road
Re: Best solar panels for the buck

Quote:
Originally Posted by mdbee View Post
Bad charger? Bad battery? Check to see how much load you are pulling? You need to do some detective work.
Thanks. Everything is working fine. It's just that our Morningstar Tristar MPPT-45 solar controller is designed to start a new cycle (ie, bulk, absorption, and float) each day. That makes sense when we're away from the dock and the batteries need to get recharged after being discharged all night long. Unfortunately, when the charger is running continuously at the dock, there is no need to recharge each day. I have submitted a ticket to Morningstar to see if this can be changed.
Pete

Last edited by prroots; 07-30-2012 at 06:32 AM.
Reply With Quote Share with Facebook
  #55  
Old 07-30-2012
Stu Jackson's Avatar
Senior Member
 
Join Date: Jul 2001
Posts: 776
Thanks: 0
Thanked 6 Times in 5 Posts
Rep Power: 13
Stu Jackson is on a distinguished road
Re: Best solar panels for the buck

Pete, wouldn't your battery acceptance limit what is needed, regardless of the input source? Isn't there anything in the Morningstar manual about resetting the charge sequence?
__________________
Stu Jackson, C34, 1986, M25 engine, Rocna 10 (22#)
Reply With Quote Share with Facebook
  #56  
Old 08-02-2012
Beneteau 411
 
Join Date: Nov 2010
Posts: 387
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 4
prroots is on a distinguished road
Re: Best solar panels for the buck

Quote:
Originally Posted by Stu Jackson View Post
Pete, wouldn't your battery acceptance limit what is needed, regardless of the input source? Isn't there anything in the Morningstar manual about resetting the charge sequence?
Thanks.

Today I called Morningstar about the overcharging issue when running both solar and battery charger. Steve gave, what I believe, is the perfect solution. Turns out the Morningstar Tristar 45 has a custom program option. Just change DIP switches for custom program and run the PC program called MSVIEW to set the absorption time for 1 minute. This means that each morning the controller will only dwell on absorption 1 minute before entering the Float stage. When we leave dock simply switch the DIP switches back and it reverts to the fixed (preprogrammed) mode with longer absorption phase. BTW, the custom setup wizard has hundreds of variables that can be set, but I just changed the one.
Pete
Reply With Quote Share with Facebook
  #57  
Old 11-27-2013
Junior Member
 
Join Date: Jun 2012
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
fdrice is on a distinguished road
Re: Best solar panels for the buck

I need a solar panel to keep the battery charged on a CATALINA 23
Reply With Quote Share with Facebook
  #58  
Old 11-28-2013
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,009
Thanks: 0
Thanked 63 Times in 54 Posts
Rep Power: 7
mitiempo will become famous soon enough mitiempo will become famous soon enough
Re: Best solar panels for the buck

Quote:
Originally Posted by fdrice View Post
I need a solar panel to keep the battery charged on a CATALINA 23
More details are required. At the dock with shorepower or on a mooring? What size battery? How many?
__________________
Brian
Living aboard in Victoria Harbour
Reply With Quote Share with Facebook
  #59  
Old 12-02-2013
Junior Member
 
Join Date: Jun 2012
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
fdrice is on a distinguished road
Re: Best solar panels for the buck

I just need to keep a 12 Volt acid battery charged to use cabin & running lights. THE BOAT IS KEPT ON A MOORING BALL ON A LAKE.
Reply With Quote Share with Facebook
  #60  
Old 12-02-2013
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,009
Thanks: 0
Thanked 63 Times in 54 Posts
Rep Power: 7
mitiempo will become famous soon enough mitiempo will become famous soon enough
Re: Best solar panels for the buck

I think a 40 or 50 watt panel and a good controller such as the Morningstar Sunsaver 6 or a Genusun would be a good choice to charge after use and maintain a full charge.
__________________
Brian
Living aboard in Victoria Harbour
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Solar Panels dougshipl Gear & Maintenance 20 05-04-2012 11:28 PM
Solar Panels? LandLocked66c Electrical Systems 18 01-30-2010 11:32 AM
More on solar panels. SVDistantStar Gear & Maintenance 47 04-04-2008 07:58 AM
Solar Panels bottleinamessage Jeanneau 0 08-16-2007 07:10 AM


All times are GMT -4. The time now is 11:19 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.