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 05-14-2019, 07:28 AM   #1
Junior Member
 
Join Date: Apr 2019
Posts: 11
Both chargers are connected to the same battery bank

I have the MM600 power inverter as well as the second charger which I think is supposed to charge the chassis batteries in my 2007 Lapalma.
I believe that during the process of preparing the coach for sale to me the batteries were incorrectly connected as both chargers appear to connect to the coach batteries. I have had the coach about a month now and live in Newport News VA.
The coach batteries are charged and both chargers are producing 13+ volts but chassis batteries are reading just over 4 volts.
Any help solving this newest issue is greatly appreciated.
__________________

va_capone 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 05-14-2019, 08:14 AM   #2
Senior Member


 
Holiday Rambler Owners Club
Join Date: Aug 2015
Posts: 4,071
va capone-

I suspect the batteries are correctly connected.

The 600W inverter supplies AC for your TVs. It does not charge anything.

The other charger charges your house batteries. There is a solenoid that connects the house and chassis batteries, under certain conditions, to allow the alternator to charge the house batteries, and to allow the house battery charger to charge the chassis batteries. The solenoid is part of a cross-charging system. Either some path between the cross-charging system and the chassis batteries is broken, or part of the cross-charging system is not working as designed. Both are common problems.

You can figure this out for yourself. You need a voltmeter. Do you have one? Can you read wiring diagrams?

For something to try immediately, find the chassis battery disconnect switch and make sure it is turned on. Your coach's owner's manual (link here), pages 146-7, may help you find the chassis battery disconnect switch.
__________________

__________________
Mark
2008 Holiday Rambler Admiral 30PDD (Ford F-53 chassis)
2009 Honda Fit Sport
l1v3fr33ord1 is offline   Reply With Quote
Old 05-15-2019, 04:42 PM   #3
Junior Member
 
Join Date: Apr 2019
Posts: 11
Thank you for your reply, but your information is incorrect. The MM600 also incorporates a trickle charger that according to the spec. Sheet provides an output of 12.6 volts DC. After I made changes to the wiring and illuminated the circuit that ran from the pos. Term through a switch a breaker and a fuse and then back to the same pos. Terminal, and relocated the positive wire from the second charger from the solar panel control box to the chassis side of the boost Solenoid and left it in that position overnight today The coach starts with no problem and the coach batteries also have a charge of 13.6 everything is lovely in Virginia now
va_capone is offline   Reply With Quote
Old Yesterday, 06:01 AM   #4
YC1
Senior Member
 
YC1's Avatar


 
Holiday Rambler Owners Club
Join Date: Jun 2011
Posts: 6,947
Welcome to the forum.

It sounds like you have it sorted but may be disguising or bypassing a problem.

In any case, that low voltage could have crippled your starting batteries. They just may not last as long as you like.

Take a look at this post for some excellent information.
Correct "Big Boy" operation

I don't know how your La Palma came from the factory but failure of the "BIRD" system components is a common problem covered on this forum 100's of times. Getting to know exactly how yours works can save a lot of frustration.
__________________
Myron & Deborah
08 HR Endeavor 40 SKQ
2012 Ford Edge Limited FWD 3.5L
Aluminator tow bar, Demco base plate
YC1 is offline   Reply With Quote
Old Today, 03:10 AM   #5
Junior Member
 
Join Date: Apr 2019
Posts: 11
Agreed

I have only had the coach about a month and am learning new stuff on an almost daily basis. I suspect the second battery charger is what someone else came up with as a solution when the stock system failed. But I can’t figure out why anyone would wire it the way it was. But it is working now although as time passes I will likely revisit it down the road.
va_capone is offline   Reply With Quote
Reply

Tags
battery, charger



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
Battery - connected house batteries to both house and engine. Engine battery removed. MMMZ Class A Motorhome Discussions 37 06-07-2018 11:38 AM
Multiple chargers on single battery bank? Wdeertz RV Systems & Appliances 10 06-28-2016 07:03 AM
Inverter Problems (connected to 6-v bank) BadBoy RV Systems & Appliances 6 05-20-2016 03:26 AM
Directv remotes turn on both tvs connected to DVR LDMcK Technology: Internet, TV, Satellite, Cell Phones, etc. 2 05-09-2014 06:38 AM
Freightliner diagnostics-connected or not connected? etcmss Freightliner Motorhome Chassis Forum 2 09-22-2011 03:20 PM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:03 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.