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Charging Chassis Batteries On Shore Power


FishAR

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Since I found my chassis batteries dead as a hammer a few weeks ago this obviously isn't happening in my coach.

My owner manual says

"For example: While the motorhome is driven the alternator on the engine will charge the house batteries. Likewise, while the motorhome is plugged into shore power, or the generator is running, the engine batteries are being charged. Each system will supply 12 Volt DC power to the 12 Volt DC distribution panels."

I've searched here and other places and just become confused, ird, bird, and so on.

In my rear electrical bay I see a device called trombetta. Is this the device I'm looking for that could be bad and not allowing my chassis batteries to charge from shore power? I see no large devices in my front electrical bay.

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Our  04 Holiday Rambler Endeavor didn't charge our chassis batteries when plugged into shore power. We replaced it with an Automatic Charging Relay (ACR). 

Jim

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44 minutes ago, Gary 05 AMB DST said:

In our ramblin'pushers site, I think it was said that these older (05 down) didn't have the charging ability. A trickle charger is required to jump the trombetta switch.

Gary 05 AMB DST

Sorry, it is called a TRIK-L-Start.

Gary 05 AMB DST

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It is very difficult to provide accurate information when the poster Does Not include year and model of the coach in question.    Chuck B 2004 Windsor

 

"Since I found my chassis batteries dead as a hammer a few weeks ago this obviously isn't happening in my coach. My owner manual says "For example: While the motorhome is driven the alternator on the engine will charge the house batteries. Likewise, while the motorhome is plugged into shore power, or the generator is running, the engine batteries are being charged. Each system will supply 12 Volt DC power to the 12 Volt DC distribution panels." I've searched here and other places and just become confused, ird, bird, and so on. In my rear electrical bay I see a device called trombetta. Is this the device I'm looking for that could be bad and not allowing my chassis batteries to charge from shore power? I see no large devices in my front electrical bay."

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26 minutes ago, Chuck B said:

It is very difficult to provide accurate information when the poster Does Not include year and model of the coach in question.    Chuck B 2004 Windsor

 

"Since I found my chassis batteries dead as a hammer a few weeks ago this obviously isn't happening in my coach. My owner manual says "For example: While the motorhome is driven the alternator on the engine will charge the house batteries. Likewise, while the motorhome is plugged into shore power, or the generator is running, the engine batteries are being charged. Each system will supply 12 Volt DC power to the 12 Volt DC distribution panels." I've searched here and other places and just become confused, ird, bird, and so on. In my rear electrical bay I see a device called trombetta. Is this the device I'm looking for that could be bad and not allowing my chassis batteries to charge from shore power? I see no large devices in my front electrical bay."

It's in my signature. I figured that would be good enough, that's why it's there.

 

Anyway

2007 Monaco Camelot 42PDQ

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Further reading on the internetz tells me if I have a bird in the front run panel I should be charging my chassis batteries on shore power.

Now that I have a pic of what one looks like I'll see if I have one shortly.

Correct?

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Ok, my mistake, I apologize.    I get my posts to the group in a form of a email which sometimes does not include the posters name and coach model.  Wonder if the group moderator can fix that?  In the mean while I will go to the group site to read the group posts.  Chuck B 2004 Windsor

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FishAR,  

I had a 05 Windsor, one step up from the Camelot, that had the same problem. I installed a trick l start which robs voltage from house batts while they are charged or charging and deposits voltage in the chassis batteries. It’s easy to install in the RRB and is smart enough to wait until the house batts are charged so you don’t nd up with both batteries run down.

 

Duncan H

2014 Entegra Anthem 

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As a temporary measure when on shore power one can use jumpers with alligator clips in parallel between the house batteries and chassis batteries so long as the resting voltage between the sets is similar. Don't do this if one set is discharged because the charged set will charge the other with a very heavy current flow. Batteries with different standing voltages connected in parallel also present challenges for the charging system.

Edited by Gary Cole
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Learned some stuff, went down to the coach, no BIRD so no chassis battery charging from shore power. I came across this video where a guy adds a BIRD to a panel identical to mine but I don't think I'll do that.

 

 

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1 hour ago, FishAR said:

Learned some stuff, went down to the coach, no BIRD so no chassis battery charging from shore power. I came across this video where a guy adds a BIRD to a panel identical to mine but I don't think I'll do that.

 

 

I don’t think using the battery boost like this (video) is a good idea.  It’s serves in an emergency, but if the chassis are low it likely will put a undue heavy load on the house batteries.  Good if needed in an emergency!

Tril-L-Start, or something similar, to give a continuous change over time will keep the Chassis batteries topped out while on shore.  The Trik-L-Start gets it power from the house batteries when they are charged good. I’ve used one for years and no low battery.

 

Edited by David White
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Call me crazy, but why not mount a regular AC to DC charger permanently on the chassis batteries wired into a nearby house AC line so when the house is in charge mode on the inverter (when mine is in charge mode it turns inverter on which turns on AC in the house) it will always keep the chassis batteries topped up?

 

Jarred A.     04 HR Nav

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