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Open Roads Forum  >  Class A Motorhomes  >  Maintenance Issues & Tips

 > Issue with house batteries

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wolfe10

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Posted: 08/25/20 04:02pm Link  |  Quote  |  Print  |  Notify Moderator

Most RV's have either a converter or inverter/charger to charge the HOUSE batteries.

A trickle charger will not keep a house battery charged.

A trickle charger WILL keep a chassis battery charged. This is correct!

Find a new RV tech!


Brett Wolfe
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down home

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Posted: 08/26/20 12:20am Link  |  Quote  |  Print  |  Notify Moderator

New Batteries should fully charge on the generator after some hours as you expressed.
I would check or have someone check the charging amps, which should be displayed on the house energy management panel. On low charge on the generator, it may be drawing over 15 volts or more. 14.5 is average on our son batteries that are low. Maintaining volts should be about 13.5.
If those batteries are good having only been discharged fully one time, they will charge back up but it will take a while.
The energy management system is adjustable. Read the manual...better yet find a good RV Tech. Check to make sure your generator switch is turned on. Freightliner didn't turn ours back on three weeks ago.
I suggests find a good Tech to check charging system and batteries.
If you are near the Kingman are I suggest Trotters. I'm a little tired tonight and slow.
If you had someone change out the batteries they no doubt turned off the main switch near the door, and they may have turned off the generator. And the inverter/charger check for three little knobs like on our ,or whatever on yours and make sure they are pushed in.

* This post was last edited 08/26/20 01:08pm by down home *   View edit history

bgosden

Utah

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Posted: 08/26/20 11:51am Link  |  Quote  |  Print  |  Notify Moderator

Thank you all for your comments. As an update here- We tested the batteries with a multi-meter- 12v each. Turned on the engine- over 13v each so it appears there is nothing wrong there.

We both feel really dumb for not realizing this, but when the guy that sold us the batteries told us to take the trickle charger off the chassis battery and put it on the house batteries, can you guess where it was plugged in? In the RV entry way.. So we were essentially charging our batteries with our batteries. I suspect this is what killed them on our trip?

We did ask the PO why they had the trickle and he said just as a backup to keep the chassis charged but not because there was an issue.

From the few comments, the way I am understanding this is that the generator will charge the house batteries when running- The alternator will keep the batteries from dying when the engine is running, but the main charging component of the house batteries is the converter? I prob do not know what I am looking for, but where is this located? Ive checked the battery bay, behind the drawers in the kitchen, and am not seeing anything. Any ideas where Winnebago hides this and is it a for sure that we have one? I also tried to find three knobs on the inverter/charger but I do not know where that is, if I have one.

Thank you all again so very much.

MrWizard

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Posted: 08/26/20 12:04pm Link  |  Quote  |  Print  |  Notify Moderator

If you have an inverter/charger as original Winnebago equipment
You do not have a converter
There would be no need for it


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mchero

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Posted: 08/26/20 01:02pm Link  |  Quote  |  Print  |  Notify Moderator

Trickle charger on chassis battery normal!
When your plugged in the charger will charge just the house batteries. Some RV's won't charge the chassis batteries, thus the need of the trickle charger. Move it back to the chassis battery(s). The charger will charge the house batteries.


Robert McHenry
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south

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Posted: 08/26/20 01:05pm Link  |  Quote  |  Print  |  Notify Moderator

bgosden wrote:

Thank you all for your comments. As an update here- We tested the batteries with a multi-meter- 12v each. Turned on the engine- over 13v each so it appears there is nothing wrong there.

We both feel really dumb for not realizing this, but when the guy that sold us the batteries told us to take the trickle charger off the chassis battery and put it on the house batteries, can you guess where it was plugged in? In the RV entry way.. So we were essentially charging our batteries with our batteries. I suspect this is what killed them on our trip?

We did ask the PO why they had the trickle and he said just as a backup to keep the chassis charged but not because there was an issue.

From the few comments, the way I am understanding this is that the generator will charge the house batteries when running- The alternator will keep the batteries from dying when the engine is running, but the main charging component of the house batteries is the converter? I prob do not know what I am looking for, but where is this located? Ive checked the battery bay, behind the drawers in the kitchen, and am not seeing anything. Any ideas where Winnebago hides this and is it a for sure that we have one? I also tried to find three knobs on the inverter/charger but I do not know where that is, if I have one.

Thank you all again so very much.


Yep but it is a charger/converter/inverter in one unit.
It should be near the battery compartment. Different RVs of course but ours is in thee compartment right in front of the battery compartment.
Our unit's book describes a Charger,Converter, Inverter.

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Posted: 08/26/20 02:00pm Link  |  Quote  |  Print  |  Notify Moderator

Often the inverter and lots of other stuff, is mounted on the roof in one of the compartments. Open the doors and look up....Dennis


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bgosden

Utah

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Posted: 08/26/20 02:26pm Link  |  Quote  |  Print  |  Notify Moderator

Oh interesting. I will have to go have a look later and look in all the compartments. About how big is it? (just wondering if it will be easy to miss) I tried looking at wiring diagrams, and I see it listed as a part but cannot find it on the diagrams themselves for location.

bgosden

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Posted: 08/27/20 09:18am Link  |  Quote  |  Print  |  Notify Moderator

Update to this- Still cannot find our inverter/charger after looking in all the compartments. I have no idea where this thing is so cannot check to see if it is on/off, wired up.

As of this morning, we still have power in the coach so could it be that we just drained the batteries with the incorrect trickle charger setup?

mfinnerty

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Posted: 08/27/20 01:04pm Link  |  Quote  |  Print  |  Notify Moderator

I have a 2003 Itasca Sunova 33L. Unless the previous owners replaced it you have a basic converter. In my unit it is located under the refrigerator behind the circuit breaker panel. It is accessed by removing the drawers under the refrigerator. Early on I replaced the OEM converter with a smart converter that does a lot of things the original converter didn't do. I also changed the batteries to two 6volt batteries in series.


Mike & Linda Finnerty with Finn & Rosco (Golden mix brothers)


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