Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
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 06-26-2017, 02:29 PM   #1
Junior Member
 
Join Date: Jun 2017
Posts: 5
Shore power is draining my coach batteries

When I plug in at a campground (50 or 30A) everything works for awhile and then the coach batteries go below 8v and everything shuts down. if I start the engine the batteries recharge and everything is good for a few hours until I have to repeat the process.
Leexlt 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 06-26-2017, 02:36 PM   #2
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,266
Welcome to iRV2.

Shore power isn't draining your batteries; the system that should use shore power to charge your batteries and provide 12 volts to your RVs systems , isn't working.
This can be a converter/charger , or an inverter/converter/charger, depending on your RV .

To be of any more help , we need you to add all the info you have on your coach to your post.
We're not standing beside you , you have to tell us everything.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is online now   Reply With Quote
Old 06-26-2017, 02:50 PM   #3
Senior Member
 
Damon Owners Club
Join Date: Jul 2010
Location: Annapolis,MD
Posts: 1,458
Maybe the transfer switch is not engaging and you
are running all battery until they die.
Do you hear a loud click when you throw the
breaker after you have plugged in ??
Mac99 is offline   Reply With Quote
Old 06-26-2017, 03:10 PM   #4
Senior Member
 
vsheetz's Avatar


 
Fleetwood Owners Club
Ford Super Duty Owner
Join Date: Jun 2012
Location: SoCal
Posts: 15,749
Yup, battery charger is not doing it's thing. To verify: Without any charging active (engine and genny off, shore cord disconnected) read the battery voltage. Now plug in shore power - the voltage at the battery should go up about 1 volt. If not, no charging.
__________________
Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
vsheetz is offline   Reply With Quote
Old 06-27-2017, 01:42 PM   #5
Junior Member
 
Join Date: Jun 2017
Posts: 5
Thanks everyone. I have a 2007 Southwind 32. The cord does work as the AC works until the batteries go below 8V. Why do I need the batteries when plugged in to the 50A? While out last week I turned off the batteries while plugged in and everything went off except the TV ???
Leexlt is offline   Reply With Quote
Old 06-27-2017, 01:45 PM   #6
Junior Member
 
Join Date: Jun 2017
Posts: 5
Thanks Vince, I will try that, where is the charger?
Leexlt is offline   Reply With Quote
Old 06-27-2017, 01:49 PM   #7
Senior Member
 
TonyMac's Avatar
 
Monaco Owners Club
Join Date: Oct 2014
Location: Rigby, Idaho
Posts: 3,902
12v only comes from the chassis or house batteries. 120v runs a charger to top off the house batteries when plugged in, and sometimes the chassis batteries too. 12v house power runs the brains of your fridge when in 120v or propane. 12v house power runs your thermostat always, your lights always, your furnace fan always, the brains of your water heater always, your dash radio always (tho' sometimes off the chassis battery), and a lot of other stuff is 12v even when plugged into 120v. So, without the charger topping off the batteries, they will go dead always.
__________________
Cheers,
TonyMac
2006 Monaco Safari Cheetah 40PMT
TonyMac is offline   Reply With Quote
Old 06-27-2017, 02:04 PM   #8
Junior Member
 
Join Date: Jun 2017
Posts: 5
Got is and thanks, so I should probably have the charger looked at prior to the converter?
Leexlt is offline   Reply With Quote
Old 06-27-2017, 09:29 PM   #9
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,266
Quote:
Originally Posted by Leexlt View Post
Got is and thanks, so I should probably have the charger looked at prior to the converter?

The charger is in the same housing as the converter , ( Converter/charger ).
If your coach was originally equipped with an inverter , there is a good chance it will all be in the same package . ( Inverter / converter/ charger )
In order to work when there is no 120 volt supplied , your fridge, furnace , and through the wall thermostat your roof air conditioner all require good 12 volt to continue operating.

More info here.

The 12volt Side of Life (Part 1)
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is online now   Reply With Quote
Old 06-28-2017, 08:12 AM   #10
Junior Member
 
Join Date: Jun 2017
Posts: 5
Thank you, I can see the complete system, it just looks confusing and expensive.
Leexlt is offline   Reply With Quote
Old 06-28-2017, 08:16 AM   #11
Member
 
Join Date: Jan 2016
Location: Tucker, Ga
Posts: 72
looks confusing and expensive

Don't worry.......... IT IS
__________________
2006 Newmar Scottsdale
Laurence Starr
LaurenceStarr is offline   Reply With Quote
Reply

Tags
batteries, power, shore 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
Coach batteries draining Fishkc10boom iRV2.com General Discussion 6 07-23-2014 06:47 AM
No Power from Shore Power and will not charge batteries Airstream14 Class A Motorhome Discussions 19 07-07-2014 08:04 AM
Coach batteries not charging on shore power Jcarn8881 MH-General Discussions & Problems 16 09-11-2012 07:04 AM
12 volt draining while plugged into shore power larry123 Class A Motorhome Discussions 4 01-29-2012 12:23 PM
No power in house when off shore power. Batteries good. wbezemek Winnebago Industries Owner's Forum 13 01-04-2012 07:16 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 08:59 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.