Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 04-06-2013, 07:10   #1
Registered User
 
JulianGullsway's Avatar

Join Date: Jun 2010
Location: London
Boat: Endurance 35
Posts: 107
Linking Solar Panels

I have x 2 80 watt photovoltaic Solar panels I wish to mount on my coach roof, can I run these parallel to save on having to make a mess on the saloon roof with two lots of cables..

Thanks in advance
__________________

__________________
JulianGullsway is offline   Reply With Quote
Old 04-06-2013, 07:19   #2
CF Adviser
 
Bash's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: sausalito
Boat: 14 meter sloop
Posts: 7,260
Re: Linking Solar Pannels

Yes. Permission granted.
__________________

__________________
cruising is entirely about showing up--in boat shoes.
Bash is offline   Reply With Quote
Old 04-06-2013, 07:34   #3
Registered User
 
JulianGullsway's Avatar

Join Date: Jun 2010
Location: London
Boat: Endurance 35
Posts: 107
Re: Linking Solar Pannels

Thank you Bash Sir!
__________________
JulianGullsway is offline   Reply With Quote
Old 04-06-2013, 08:19   #4
Registered User
 
S/V_Surya's Avatar

Join Date: Mar 2009
Location: Sasafra river,MD
Boat: gulfstar ketch 41 Surya
Posts: 658
Re: Linking Solar Pannels

You are going to add a controller to the mix yes? On the controller you would combine the the panels in parallel. I myself purchased 2- 100 watt panels and a 30 amp controller. Since I have 4 banks 2 house and 2 starting batteries I am think of adding 4 switches on the output of the controller so I can select which bank to charge.
__________________
S/V_Surya is offline   Reply With Quote
Old 04-06-2013, 08:23   #5
Registered User
 
JulianGullsway's Avatar

Join Date: Jun 2010
Location: London
Boat: Endurance 35
Posts: 107
Re: Linking Solar Pannels

What sort of controller would you recommend, we too have the same set up x 2 for engine/windlass and x 2 for leisure we do already run a wind generator which charges all 4 batteries hadn't thought about split charging what would be the benefits?

Thanks
__________________
JulianGullsway is offline   Reply With Quote
Old 04-06-2013, 08:47   #6
Registered User
 
S/V_Surya's Avatar

Join Date: Mar 2009
Location: Sasafra river,MD
Boat: gulfstar ketch 41 Surya
Posts: 658
Re: Linking Solar Pannels

Against my better judgment I purchased a 30 amp controller off of ebay called solar30 for about 25 bucks. I wanted this because I can read the battery voltage and many other parameters. I want to be able to charge each bank as needed. The switches will allow me to charge one or more banks as required. I do not think charging all at the same time is a good idea cause one bad battery can bring them all down.
__________________
S/V_Surya is offline   Reply With Quote
Old 06-06-2013, 02:39   #7
Registered User
 
JulianGullsway's Avatar

Join Date: Jun 2010
Location: London
Boat: Endurance 35
Posts: 107
Re: Linking Solar Pannels

Cheers Surya, yes I have a controller/ Regulator for the solar panels which will enable me to read voltage input etc if that's what you mean I cant see how if one of my batteries went down it could bring the rest down, please enlighten me, electronics has never been y string point :-)
__________________
JulianGullsway is offline   Reply With Quote
Old 06-06-2013, 05:40   #8
Registered User
 
S/V_Surya's Avatar

Join Date: Mar 2009
Location: Sasafra river,MD
Boat: gulfstar ketch 41 Surya
Posts: 658
Re: Linking Solar Panels

Anytime you put two batteries in parallel, it is best to use two batteries of the same size and age. If one battery is weak, it will attempt to charge itself from the strong battery, and you lose power from the strong battery.
If one battery developes a shorted cell, it will drag the good one down with it.
__________________

__________________
S/V_Surya is offline   Reply With Quote
Reply

Tags
panels, solar

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 07:02.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.