setting up sun juice - Fiberglass RV

Thread Tools Search this Thread Display Modes
Old 09-18-2007, 07:53 PM   #1
Senior Member
ronsmith100's Avatar
Trailer: Casita
Posts: 451
I have a new Castia 17D and I added a second battery (isolated via marine switch).

I am thinking about adding solar... any suggestions on vendors?

How do they work? the juice from the cells go directly to the battery or do you need to go through a trickle charging system?


ronsmith100 is offline   Reply With Quote
Old 09-19-2007, 01:04 AM   #2
Senior Member
Trailer: Former Casita 17 ft owner
Posts: 1,498
Try this book.


Morgan is offline   Reply With Quote
Old 09-19-2007, 11:56 AM   #3
Senior Member
Brian B-P's Avatar
Name: Brian
Trailer: Boler (B1700RGH) 1979
Posts: 5,000
Generally, if the peak panel output current is low enough compared to the battery size, they can be directly connected and will act as a basic trickle charger. Anything more - which to me means anything useful - would need a controller of some sort.

Controllers can be as simple as a two-setpoint on/off device like those used in basic "automatic" battery chargers; this is what I have, and it just turns off when the battery gets to some set voltage (e.g. 14.2 V), and on again when the battery drops to something lower (near 12V).

Better controllers act more like "smart" battery chargers, controlling the current to charge the battery appropriately. These are usually pulse-width modulation (PWM) designs. Some FiberglassRV members have these.

The best controllers convert between different voltage levels for the panel and battery, controlling the panel for maximum output, independent of battery voltage. These are the maximum power point tracking (MPPT) designs. I've only read about them on solar power sites.
1979 Boler B1700RGH, pulled by 2004 Toyota Sienna LE 2WD
Information is good. Lack of information is not so good, but misinformation is much worse. Check facts, and apply common sense liberally.
STATUS: No longer active in forum.
Brian B-P is online now   Reply With Quote

solar, solar power

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

Advanced Search
Display Modes

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Setting Your Trailer Brakes ronsmith100 Towing, Hitching, Axles and Running Gear 3 04-21-2009 03:05 PM
left juice hooked up too long ronsmith100 Care and Feeding of Molded Fiberglass Trailers 3 05-06-2008 02:55 PM
Setting up a new workshop? Pete Dumbleton General Chat 10 01-09-2008 07:07 PM
Setting Up city Water Bonnie Problem Solving | Owners Helping Owners 4 11-14-2007 02:45 AM
Setting for Fridge Alan P. Problem Solving | Owners Helping Owners 5 08-13-2007 04:19 AM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 02:12 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.