Solar Power and shade - Page 2 - Escape Trailer Owners Community

Go Back   Escape Trailer Owners Community > Escape Tech > Problem Solving | Owners helping each other
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 11-23-2015, 07:01 PM   #11
Senior Member
 
Join Date: Sep 2010
Location: Kelowna, British Columbia
Trailer: 2008 Escape 17b
Posts: 1,874
Quote:
Originally Posted by padlin View Post
I put a piece of cardboard on the corner of my panel, 0A output. So you can too much shade for any output.
This is the very experience I have encountered.
__________________

J Mac is offline   Reply With Quote
Old 11-23-2015, 07:09 PM   #12
Senior Member
 
Join Date: Sep 2010
Location: Kelowna, British Columbia
Trailer: 2008 Escape 17b
Posts: 1,874
Quote:
Originally Posted by santacruzer View Post
I checked my solar charge Saturday BEFORE removing my CalMark cover for the upcoming Thanksgiving trip. At high noon here in coastal California, cloudless day, Latitude:N 36° 58' 26.8216" I was pulling .2 amps through the cover. Not much, but something. It's the 160 watt panel.
As a test, it'd be interested to know how many amps, if any, there might be if your solar panel was completely covered with an opaque cover at high noon. I know your off on a Thanksgiving trip (lucky you) and the CalMark cover is off.
__________________

J Mac is offline   Reply With Quote
Old 11-23-2015, 08:33 PM   #13
Commercial Member
 
tractors1's Avatar
 
Join Date: Apr 2014
Location: Hillsboro, Oregon
Trailer: 2014 Escape 21 - "Felicity"
Posts: 2,326
12V x 0.2 amps = 2.4 watts
__________________
Charlie Y

Need custom storage to your design? Don't drill holes!
www.RVWidgetWorks.com
tractors1 is offline   Reply With Quote
Old 11-23-2015, 09:10 PM   #14
Senior Member
 
Join Date: Sep 2010
Location: Kelowna, British Columbia
Trailer: 2008 Escape 17b
Posts: 1,874
Quote:
Originally Posted by tractors1 View Post
12V x 0.2 amps = 2.4 watts
Thanks tractors! Is that about the wattage needed for a solar calculator or doesn't electricity work that way?
J Mac is offline   Reply With Quote
Old 11-23-2015, 09:58 PM   #15
Commercial Member
 
tractors1's Avatar
 
Join Date: Apr 2014
Location: Hillsboro, Oregon
Trailer: 2014 Escape 21 - "Felicity"
Posts: 2,326
Quote:
Originally Posted by J Mac View Post
Thanks tractors! Is that about the wattage needed for a solar calculator or doesn't electricity work that way?
Probably less for the calculator. I once did a business deal using a cigarette lighter to power a solar calculator in a dimly lit drinking establishment.
__________________
Charlie Y

Need custom storage to your design? Don't drill holes!
www.RVWidgetWorks.com
tractors1 is offline   Reply With Quote
Old 11-24-2015, 11:03 AM   #16
Senior Member
 
santacruzer's Avatar
 
Join Date: May 2012
Location: Santa Cruz, California
Trailer: 2014 Escape 19
Posts: 686
Quote:
Originally Posted by J Mac View Post
As a test, it'd be interested to know how many amps, if any, there might be if your solar panel was completely covered with an opaque cover at high noon. I know your off on a Thanksgiving trip (lucky you) and the CalMark cover is off.
It was completely covered with an opaque cover at high noon when I made the observation you're quoting.
__________________
2009 Tacoma Crew Cab, TRD 4WD
2007 Tundra Double Cab TRD 4WD
2014 Escape 19
2007 Norwegian Elkhound "Baxter"
santacruzer is online now   Reply With Quote
Old 11-24-2015, 11:23 AM   #17
Senior Member
 
Vermilye's Avatar
 
Join Date: Feb 2010
Location: Oswego, New York
Trailer: 2016 Tacoma Off Road, 2017 21
Posts: 2,283
With an opaque cover over the entire panel, I wouldn't expect to get anything. As to .2 amps being enough to maintain your batteries, it is a bit on the low side, however the best way to check is to look at the battery voltage after dark (when the solar panel is inactive). If the battery voltage is in the neighborhood of 12.6 volts, you are OK. If you get down to around 12.06V (50%) you need to throw on a charger or remove the cover & let the panel do its thing.

Another consideration - according to Trojan, a fully charged battery won't freeze until the temperature reaches -90°F, but at 40% charged, the freezing temperature of your battery is 16°F, a temperature some us (the unlucky ones) may reach over the winter...
__________________
Jon Vermilye My Travel Blog
Travel and Photo Web Page ... My Collection of RV Blogs 2016 Tacoma, 2017 21
Vermilye is offline   Reply With Quote
Old 11-24-2015, 11:40 AM   #18
Senior Member
 
Join Date: Sep 2010
Location: Kelowna, British Columbia
Trailer: 2008 Escape 17b
Posts: 1,874
Quote:
Originally Posted by santacruzer View Post
It was completely covered with an opaque cover at high noon when I made the observation you're quoting.
Opaque | Define Opaque at Dictionary.com

Wow, It seems your solar panel doesn't need any sun light to create a charge. Somehow this just doesn't seem right.
J Mac is offline   Reply With Quote
Old 11-24-2015, 12:44 PM   #19
Site Team
 
cpaharley2008's Avatar
 
Join Date: Jun 2010
Location: York, Pennsylvania
Trailer: 2016 2ndGen Escape 19' PRAIRIE SCHOONER pulled by 2014 Ram Hemi/8sp
Posts: 13,675
You say tomato, I say tomato...take it for what it's worth.
__________________
Jim
The two most important days in your life are the day you were born and the day you find out why………..Mark Twain
cpaharley2008 is offline   Reply With Quote
Old 11-30-2015, 03:02 PM   #20
Senior Member
 
santacruzer's Avatar
 
Join Date: May 2012
Location: Santa Cruz, California
Trailer: 2014 Escape 19
Posts: 686
Quote:
Originally Posted by J Mac View Post
Opaque | Define Opaque at Dictionary.com

Wow, It seems your solar panel doesn't need any sun light to create a charge. Somehow this just doesn't seem right.
Through a glass darkly...maybe opaque isn't the correct adjective. What say we bury this dead horse??
__________________

__________________
2009 Tacoma Crew Cab, TRD 4WD
2007 Tundra Double Cab TRD 4WD
2014 Escape 19
2007 Norwegian Elkhound "Baxter"
santacruzer is online now   Reply With Quote
Reply

Thread Tools
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






» Virginia Campgrounds

Reviews provided by



All times are GMT -5. The time now is 10:28 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 Social Knowledge, LLC All Rights Reserved.