RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Monaco Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 04-04-2020, 07:56 PM   #1
Senior Member
 
jacwjames's Avatar
 
Monaco Owners Club
Join Date: Jun 2014
Posts: 7,633
Solar won't keep batteries charged.

I've been fighting this off and on for a while. Last year I checked connections, batteries, cleaned the solar panels. It seemed to get better.


I have the coach plugged in but the switch off with with sales man switch off. I've been monitoring the batteries. The solar panels had been keeping up but then a couple weeks ago I decided to dewinterize the coach and fill the water tank. Everything was fine. Turned the sales man switch back off.

Then this week I noticed the batteries going down slowly. Finally turned the power on to fully charge the batteries.


What could be causing solar to be hit and miss. Anything I need to check.
__________________
Jim J
2002 Monaco Windsor 38 PKD Cummins ISC 250 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi
jacwjames is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 04-05-2020, 08:59 AM   #2
Senior Member
 
jacwjames's Avatar
 
Monaco Owners Club
Join Date: Jun 2014
Posts: 7,633
Also, I have 325 watt of solar panels. I inspected and cleaned them a couple months ago. Up until 2 weeks ago the solar was keeping the batteries charged. Only thing that changed was I turned the salesman switch on to run the water pump. Turned the salesman switch back off but now the batteries seem to drain. I have turned the power on to charge the batteries, I checked yesterday and the batteries held a charge. Haven't checked today yet.



I am bewildered and confused.
__________________
Jim J
2002 Monaco Windsor 38 PKD Cummins ISC 250 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi
jacwjames is offline   Reply With Quote
Old 04-05-2020, 09:21 AM   #3
Senior Member
 
Join Date: Dec 2019
Location: America's Seaplane City.
Posts: 373
We need data. Panel voltage, battery voltage would be helpful. If you have a shunt based battery monitor(hopefully), are you showing current moving in or out, how much with solar on and off. Does the solar controller have a read out for amps and/or volts?

This issue should be quite easy to nail down, if you have the above mentioned monitor. If not, it can be a challenge as you have to do a bit(or a lot) more guessing and trouble shooting.
__________________
2000 Roadtrek 200 Versatile. Fun stuff:
'15 Kawasaki Versys650LT, well farkled
'98 Kawasaki KLR650, somewhat farkled
SteveJ. is online now   Reply With Quote
Old 04-05-2020, 09:29 AM   #4
Senior Member
 
creativepart's Avatar
 
Winnebago Owners Club
Join Date: Sep 2009
Location: Spring Branch, TX
Posts: 1,795
Nothing’s changed? How about the weather?
__________________
2017 Winnebago Adventurer 37F
2016 Lincoln MKX Toad
creativepart is online now   Reply With Quote
Old 04-05-2020, 09:54 AM   #5
Senior Member
 
Join Date: Jul 2014
Posts: 24,705
Is the battery disconnect ( salesman switch )actually disconnecting ?
twinboat is offline   Reply With Quote
Old 04-05-2020, 10:05 AM   #6
Senior Member
 
jacwjames's Avatar
 
Monaco Owners Club
Join Date: Jun 2014
Posts: 7,633
Yes, I have a solar display.

The inverter display was showing the batteries being depleted.

The solar display was showing voltage for both the house and chassis battery were +13.5 volts. Haven't checked it today yet.
As far as I know the salesman switch is working, when I turn it off no lights will come on.



Last year at one point the batteries went down to where the keyless entry wouldn't work. This is when I first suspected a problem and I did check amperage draw on the house circuit with everything off and it was very low, some draw but this was probably parasitic. When I turn the switch off it goes to zero on that circuit.



Historically the solar has been able to keep up with the salesman switch on.

I have not turned the main disconnect switches off at this point
__________________
Jim J
2002 Monaco Windsor 38 PKD Cummins ISC 250 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi
jacwjames is offline   Reply With Quote
Old 04-05-2020, 11:54 AM   #7
Senior Member
 
jacwjames's Avatar
 
Monaco Owners Club
Join Date: Jun 2014
Posts: 7,633
I just checked the display. After +2 days the batteries are still 100% on the inverter display. The solar display shows the chassis batter to be 14 volts, house battery is bumping between 13.8 and 14 volts. The solar display is showing 3.4 amp charging but with batteries fully charged this is probably skewed, I know if I use a load it will shower higher amperage output.
__________________
Jim J
2002 Monaco Windsor 38 PKD Cummins ISC 250 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi
jacwjames is offline   Reply With Quote
Old 04-08-2020, 03:41 PM   #8
Senior Member
 
Timaz's Avatar
 
Monaco Owners Club
Join Date: Aug 2017
Location: On the road
Posts: 860
Quote:
Originally Posted by jacwjames View Post
I just checked the display. After +2 days the batteries are still 100% on the inverter display. The solar display shows the chassis batter to be 14 volts, house battery is bumping between 13.8 and 14 volts. The solar display is showing 3.4 amp charging but with batteries fully charged this is probably skewed, I know if I use a load it will shower higher amperage output.
This sounds like it's working fine. (If they are at float)
__________________
Finally Retired-60% Time in Motorhome
2000 Dynasty Regent, 8.3, Banks Turbo, McCabe Racing 5" Diameter Exhaust, 475 HP 1425 Torque 11+MPG towing 05 Pilot 700W solar & E-Bikes
Timaz is offline   Reply With Quote
Old 04-15-2020, 08:28 PM   #9
YC1
Senior Member
 
YC1's Avatar


 
Holiday Rambler Owners Club
Join Date: Jun 2011
Posts: 8,184
How old are the batteries? Have you checked the specific gravity of each cell?
__________________
Myron & Deborah
08 HR Endeavor 40 SKQ
2016 Ford F150 Limited V6 with Ready Brake
Aluminator tow bar, Demco base plate
YC1 is offline   Reply With Quote
Old 04-19-2020, 07:59 AM   #10
Senior Member
 
jacwjames's Avatar
 
Monaco Owners Club
Join Date: Jun 2014
Posts: 7,633
Yes, I checked the SG with a hydrometer, all appeared to be good. Connections are good.


It's been about 2 weeks since I plugged in and charged the batteries and then shut the power off again. The charge has held and the solar is now keeping up again.


Not sure what is going on but I'm not going to fret over it for now. At some point I may dig into it but since I don't have any planned trips now I'll just live with it.
__________________
Jim J
2002 Monaco Windsor 38 PKD Cummins ISC 250 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi
jacwjames is offline   Reply With Quote
Reply

Tags
batteries, 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
Solar Power to keep Batteries Charged in Storage DixielandBBQ Toy Haulers Discussion 12 01-03-2017 01:53 PM
Battery panel show charged, not charged, charged ?? Oregon Class C Motorhome Discussions 1 06-06-2016 01:13 PM
charged or not charged batteries dccdfw Fleetwood Owner's Forum 5 04-23-2010 10:20 AM
Does the 5 Watt Solar Panel Keep Full Batteries Charged? 69RoadRunner Newmar Owner's Forum 13 04-09-2008 09:18 AM
Using Solar to Keep Toad Battery Charged Jackm Toads and Motorhome Related Towing 5 12-07-2005 03:13 AM


All times are GMT -6. The time now is 12:01 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.