Free 7 Day Trial RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance 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 11-29-2021, 09:41 PM   #1
Junior Member
 
Join Date: Nov 2021
Posts: 7
Question 2 (generator)

As promised, here is my electrical question

When the generator is running, it is draining my chassis battery. It's charging the house at 13.8 but not charging the chassis battery at all (starts from chassis) so my question is where to start the rig is a 31' 92 phoenix by cobra and the generator is a Kohler 4.5ckm21-rv that has 130hrs on it total

Thanks in advance

Eric
Eric99223 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 11-29-2021, 10:30 PM   #2
Senior Member
 
Join Date: Jul 2014
Posts: 29,430
Pickup a Cyrix 120 battery combiner and wire it between the house and chassis battery. Don't forget to run a ground wire.

Your other option is to move the generator cable to the house battery.Click image for larger version

Name:	Screenshot_20211129-232849_Chrome.jpg
Views:	8
Size:	32.9 KB
ID:	350133
twinboat is offline   Reply With Quote
Old 11-30-2021, 12:13 AM   #3
Junior Member
 
Join Date: Nov 2021
Posts: 7
Is it meant to be that way and not charge the chassis? Won't that allow both batteries to run down?
Eric99223 is offline   Reply With Quote
Old 11-30-2021, 07:33 AM   #4
Senior Member
 
Join Date: Jul 2014
Posts: 29,430
It may have had a different system that kept the chassis battery charged. Look for a device labeled Lampert L145 or something like that..

OR it may have had the generator connected to the house battery. Some folks move it to the chassis battery so they can run down the house battery dry camping and use the chassis battery to start the generator.

The device I suggested is voltage sensitive. It only connects the batteries together IF there is a charging voltage on one or the other.
When your generator is running and charging the house battery, it connects the chassis battery too, charging that.

When your engine is running and charging your chassis battery, it connects your house batteries, charging them.

Shut either charging source and the combiner opens, like it wasn't there.
twinboat is offline   Reply With Quote
Old 11-30-2021, 09:48 AM   #5
Moderator Emeritus
 
Gary RVRoamer's Avatar


 
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 24,777
Not all coaches charge the chassis battery from shore/generator power. If unsure if yours is supposed to do that, you can add a battery combiner such as the Cyrix or the LSL Trik-L-Start. Simple to add and works great.
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is in the Ocala Nat'l Forest near Ocala, FL
Gary RVRoamer is offline   Reply With Quote
Old 11-30-2021, 10:46 AM   #6
Senior Member
 
Join Date: Jul 2014
Posts: 29,430
It's true that not all coaches charge the chassis batteries BUT if the generator is powered by the chassis battery it has to, otherwise you end up with a dead chassis battery.
Most RV generators don't have, or connect, self contained charging systems.


I didn't mention the Trik L Start because it's only a 10 amp device.
It's built to maintane a resting battery and may not cover the load of the running generator power use.
twinboat is offline   Reply With Quote
Old 12-01-2021, 12:25 AM   #7
Junior Member
 
Join Date: Nov 2021
Posts: 7
Talked to Kohler and they said from the model number it should charge the start battery as well so I guess it's time to bust out the voltmeter amd see what is going on in there
Eric99223 is offline   Reply With Quote
Old 12-01-2021, 07:11 AM   #8
Senior Member
 
153stars's Avatar
 
Join Date: Mar 2019
Location: Braidwood Il.
Posts: 4,438
My Generac 75d has small separate 12v rectifier circuit board ,just enough output to add more juice back to batt than it uses. IDK to amperage but can't be much by the size of it, maybe a couple amps if I had to guess. The small combiner twin boat shared may be cheaper and faster than a replacement especially if it's part of main board. Before adding my Bluesea MTL-ACR, I just used a car charger camping when on my 3000w gas inv. genny occasionally.
Quote:
Originally Posted by Eric99223 View Post
Talked to Kohler and they said from the model number it should charge the start battery as well so I guess it's time to bust out the voltmeter amd see what is going on in there
__________________
95 Monaco Crown Royale
M11 400hp, 4060 trans.
Aquahot, Generac Guardian7.5k
153stars is offline   Reply With Quote
Reply

Tags
generator



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
Generator question and charging question 1ramblingman Gulf Stream Owner's Forum 5 07-13-2018 09:53 AM
2006 Travel Supreme Select 500hp Cummins, 1200 ONAN generator generator d or will no Bev51 Travel Supreme Owner's Forum 4 06-13-2018 07:23 PM
Harbor Freight Predator 3500 Generator-backup Generator Meaney77 RV Systems & Appliances 5 03-13-2018 04:12 PM
Automatic generator start system/Generator/shoreline automatic changeover switc Rac912 RV Systems & Appliances 14 01-12-2016 12:51 PM
Military Generator INSIDE prepped Generator Area WorkRVing 5th Wheel Discussion 21 11-18-2015 07:00 AM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 01:03 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.