Need Help - Solar Charging Question - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 04-16-2014, 11:51 AM   #1
Senior Member
 
Name: Huck
Trailer: ParkLiner
Virginia
Posts: 574
Need Help - Solar Charging Question

I'm trying to do what I have read others here have done.

I have a 100 watt solar panel (RENOGY 100W Watts 100 Watt Polycrystalline Solar Panel) connected to a charge controller (Renogy 30 Amp PWM Charge Controller Regulator Off Grid for Battery Charging).

The output from the charge controller is connected to aux power and ground on a 7-way blade rv connector (vehicle side).

Before I plug it in to the trailer connector, I want to make sure the voltage level is right. I'm reading 21.5 volts. Does this seem right?
__________________

__________________
Huck is online now   Reply With Quote
Old 04-16-2014, 12:04 PM   #2
Moderator
 
Gina D.'s Avatar
 
Name: Gina D.
Trailer: '77 Leocraft 17 & Former Burro owner and fan!
West Coast USA
Posts: 9,016
Registry
It could be right if measuring directly from the panels. If you are measuring the output of the charge controller, it should be in the 12 to 14.5 volt range, given your panels are in full sun. (Depends on the controller you have)
__________________

__________________
Gina D. is offline   Reply With Quote
Old 04-16-2014, 12:07 PM   #3
Senior Member
 
Jon Vermilye's Avatar
 
Name: Jon
Trailer: 2017 Escape 21
Oswego, NY
Posts: 1,407
Registry
While that sounds like the normal voltage from the panel, it is high for the output of the controller. I'm not familiar with their controller - it may be that it does not provide the proper voltage unless connected to a battery. Depending on the state of the battery, the output should be in the range of 13.2 - 15 volts when connected.
Jon Vermilye is offline   Reply With Quote
Old 04-16-2014, 12:10 PM   #4
Senior Member
 
Name: Huck
Trailer: ParkLiner
Virginia
Posts: 574
I'm definitely going through the controller.
__________________
Huck is online now   Reply With Quote
Old 04-16-2014, 12:26 PM   #5
Senior Member
 
Jon Vermilye's Avatar
 
Name: Jon
Trailer: 2017 Escape 21
Oswego, NY
Posts: 1,407
Registry
If it was me, I'd try connecting it to a stand alone battery first to see if it drops to the proper voltage. I'll bet it does, but I wouldn't want to risk the trailer's electronics finding out...
Jon Vermilye is offline   Reply With Quote
Old 04-16-2014, 12:41 PM   #6
Senior Member
 
Name: Huck
Trailer: ParkLiner
Virginia
Posts: 574
Thanks everyone. I just got this response from Renogy. I asked them the same question I posted here.

Quote:
Yes, that is the open voltage (when there is no load connected). When you connect a solar system, you want to connect the battery first to the charge controller and then the solar panel.
I have another related question, but will start another thread.
__________________

__________________
Huck is online now   Reply With Quote
Reply

Tags
solar


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
Charging deep cycle batt. with car alternator - Do I need a charge controller??? Roo-lot Problem Solving | Owners Helping Owners 30 09-29-2017 01:45 PM
Solar charging system completed ruscal Modifications, Alterations and Updates 15 12-07-2013 08:56 PM
Need help connecting my solar panels Mouse Electrical | Charging, Systems, Solar and Generators 27 02-20-2012 05:40 PM
Battery charging question Kent I Problem Solving | Owners Helping Owners 4 12-29-2008 06:30 PM
Another battery charging question Sonny Care and Feeding of Molded Fiberglass Trailers 8 09-30-2006 09:14 PM

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

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:27 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.