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01-23-2017, 05:06 PM
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#1
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Member
Join Date: Jan 2017
Posts: 57
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2008 Monaco D engine batteries dead
Hello all.
Here's my situation.
I have a 08 Monaco Dynasty Yorkshire. Owned it for 2 weeks now. Bought from a reputable dealer.
We have been staying in it for the past 2 weeks hooked up to shore. We have been staying with family. (Not in the coach) since Saturday and the coach has been sitting. Not plugged in, no generator running. Sunday we started it took a trip no problem. Sat all night. (Refrigerator running.) tonight we go to start it and it's dead. Engine won't turn over. AAA came out both engine batteries are so drained he could not charge them. Both batteries were replaced 6-2016.
We are trying to find 2 new batteries which is proving difficult.
My questions are:
Where do you find such big batteries?
Second what if anything would have drained these 2 engine batteries?
Headlights are off.
Help!
Thanks,
Nicole B.
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01-23-2017, 05:54 PM
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#2
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Senior Member
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 6,587
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Quote:
Originally Posted by 2008MDY
Hello all.
Here's my situation.
I have a 08 Monaco Dynasty Yorkshire. Owned it for 2 weeks now. Bought from a reputable dealer.
We have been staying in it for the past 2 weeks hooked up to shore. We have been staying with family. (Not in the coach) since Saturday and the coach has been sitting. Not plugged in, no generator running. Sunday we started it took a trip no problem. Sat all night. (Refrigerator running.) tonight we go to start it and it's dead. Engine won't turn over. AAA came out both engine batteries are so drained he could not charge them. Both batteries were replaced 6-2016.
We are trying to find 2 new batteries which is proving difficult.
My questions are:
Where do you find such big batteries?
Second what if anything would have drained these 2 engine batteries?
Headlights are off.
Help!
Thanks,
Nicole B.
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Those batteries may be group 31 with a CCA of 925 or above. NAPA or Tractor Supply are a couple of sources. Hard to say what caused the drain. Lots of possibilities. For the batteries to be so totally drained, there was a big draw or one of the batteries had a dead cell. It can happen even with fairly new batteries. How about the house batteries? Were they ok.
__________________
Steve Ownby
Full time since 2007
2003 Monaco Signature
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01-23-2017, 06:01 PM
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#3
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Senior Member
Monaco Owners Club
Join Date: Jan 2016
Location: New Hampshire
Posts: 585
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Welcome to the forum!
Sorry to hear about your battery issues. Chassis batteries aren't very tolerant of being totally discharged, so it's not a surprise even though they were new in June. RVs sit a lot and the parasitic load on them will drain them if not kept charged. On our 2006 Monaco Camelot, the chassis batteries are not charged when plugged in to shore power and will go dead after a week or so. I bought a hard-wired charger that piggy backs off the house battery charger. Not only does it keep the chassis batteries charged, but it has a green light to indicate charged status for peace of mind. AMP-L-START Starting Battery Charger/Maintainer - Overview Page
As far as why yours send dead overnight, who knows. You could have a short, or the batteries are just toast from being run down too many times. You can find replacements at Sam's Club, or probably any good auto parts store or truck service center. I wanted to characterize my loads on both the coach and chassis batteries, so I bought: Sears.com
Be careful and get that model- there's a cheaper one with the same description, but it doesn't do DC, which is what you want.
Good luck!
Walt
__________________
Walt & Bonnie
2006 Monaco Camelot 40PAQ, Cummins 400 ISL
'22 Ford Escape PHEV, Roadmaster BP, Sterling towbar
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01-23-2017, 06:02 PM
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#4
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Member
Join Date: Jan 2017
Posts: 57
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Thank you for responding!
We were fortunate to find a Freightliner service and parts place close by that is open till 12! And they have the batteries we need.
Yippee!
It's good to hear that maybe one of the batteries may have a bad cell.
The house batteries are fine. Thanks for asking.
I'll be sure to post if replacing the batteries does the trick.
I was getting nervous it may be the alternator. Could it be that too?
Thanks so much Steve!
😁
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01-23-2017, 06:13 PM
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#5
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Senior Member
Monaco Owners Club
Join Date: Jan 2016
Location: New Hampshire
Posts: 585
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You should have some sort of gauge or display that shows chassis battery voltage on your instrument panel. We have both an analog round gauge and voltage display on the Aladdin system. It should indicate 13-14V when charging.
Do you also have a switch to boost your chassis batteries from your house batteries? I'd be surprised if you don't, but I don't know what Monaco did in 2008 on your model. If the chassis batteries are low, you can hold the switch down and start the engine using the house batteries.
Walt
__________________
Walt & Bonnie
2006 Monaco Camelot 40PAQ, Cummins 400 ISL
'22 Ford Escape PHEV, Roadmaster BP, Sterling towbar
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01-23-2017, 06:13 PM
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#6
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Member
Join Date: Jan 2017
Posts: 57
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Quote:
Originally Posted by photopilot
Welcome to the forum!
Sorry to hear about your battery issues. Chassis batteries aren't very tolerant of being totally discharged, so it's not a surprise even though they were new in June. RVs sit a lot and the parasitic load on them will drain them if not kept charged. On our 2006 Monaco Camelot, the chassis batteries are not charged when plugged in to shore power and will go dead after a week or so. I bought a hard-wired charger that piggy backs off the house battery charger. Not only does it keep the chassis batteries charged, but it has a green light to indicate charged status for peace of mind. AMP-L-START Starting Battery Charger/Maintainer - Overview Page
As far as why yours send dead overnight, who knows. You could have a short, or the batteries are just toast from being run down too many times. You can find replacements at Sam's Club, or probably any good auto parts store or truck service center. I wanted to characterize my loads on both the coach and chassis batteries, so I bought: Sears.com
Be careful and get that model- there's a cheaper one with the same description, but it doesn't do DC, which is what you want.
Good luck!
Walt
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Oh this great news to hear!
We are on our way to a nearby Freightliner dealer that is open until midnight.
They have the batteries with the cranking power we need.
Here is another question I have... We are leaving for home tomorrow around 10am. 14 hours from now. If replacing the batteries does the trick... would it be better to then wait to hook them up until we are ready to roll? I hate to run the risk of draining a second set.
I just love the kind help! Those links you gave me are reassuring especially having the coach go in storage for a few months.
Thank you Walt!
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01-23-2017, 06:15 PM
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#7
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Senior Member
Monaco Owners Club
Join Date: Jan 2016
Location: New Hampshire
Posts: 585
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I'd replace them tonight and put a regular battery charger on them overnight to top them off. You should do that with new batteries anyway.
Walt
__________________
Walt & Bonnie
2006 Monaco Camelot 40PAQ, Cummins 400 ISL
'22 Ford Escape PHEV, Roadmaster BP, Sterling towbar
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01-23-2017, 06:16 PM
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#8
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Member
Join Date: Jan 2017
Posts: 57
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Quote:
Originally Posted by photopilot
You should have some sort of gauge or display that shows chassis battery voltage on your instrument panel. We have both an analog round gauge and voltage display on the Aladdin system. It should indicate 13-14V when charging.
Do you also have a switch to boost your chassis batteries from your house batteries? I'd be surprised if you don't, but I don't know what Monaco did in 2008 on your model. If the chassis batteries are low, you can hold the switch down and start the engine using the house batteries.
Walt
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Now I cant wait to get back and check the dash. Also to see if we have that switch to start the engine on house.
Whoa nellie this is intense.
We were travel trailer owners before and I knew that baby like the back of my hand.
So glad I found ya'll and your help.
Ill keep you posted.
Nicole
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01-23-2017, 06:17 PM
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#9
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Senior Member
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 6,587
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Quote:
Originally Posted by 2008MDY
Thank you for responding!
We were fortunate to find a Freightliner service and parts place close by that is open till 12! And they have the batteries we need.
Yippee!
It's good to hear that maybe one of the batteries may have a bad cell.
The house batteries are fine. Thanks for asking.
I'll be sure to post if replacing the batteries does the trick.
I was getting nervous it may be the alternator. Could it be that too?
Thanks so much Steve!
😁
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When the engine is running, the voltage you see displayed should be 13.8 to 14.2 if the alternator is doing its job. Battery health is the main reason to try to keep shore power to the coach. Even a standard household 120 VAC 20 amp circuit is enough to run the battery charger function on the inverter. You will learn all the tricks of the coach after awhile. That's a spectacular coach by the way.
One other thing. If the alternator is toast, ask for it to be rebuilt. It's really hard to get an off the shelf alternator that functions properly on these coaches. You have a Leece Neville which is not particularly common.
__________________
Steve Ownby
Full time since 2007
2003 Monaco Signature
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01-23-2017, 09:36 PM
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#10
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Senior Member
Tiffin Owners Club
Join Date: Jul 2014
Posts: 487
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When you discovered your dead batteries, did they have enough juice to start the generator. If so, that might have been enough to charge the batteries to get you started.
__________________
Bill & Mary USN 69-73 ASW Technician, MBA.
2006 Tiffin Allegro Bus QDP 1060 watts solar
2012 Jeep Grand Cherokee '16 Polaris Razor 4
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01-23-2017, 10:09 PM
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#11
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Senior Member
Winnebago Owners Club
Join Date: May 2010
Location: East Coast Fl
Posts: 1,229
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No warranty on those 2016 D batteries?
2016 Arctic Fox 25Y. 2016 F350, 4x4, DRW, 6.7 PowerStroke.
__________________
2016 Arctic Fox 25Y (For Sale), 2016 F350 4x4 DRW, 6.7
2008 Mobile Suites RE3: Sold
2005 Monaco Dynasty Diamond IV: Sold
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01-24-2017, 09:49 AM
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#12
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Member
Join Date: Jan 2017
Posts: 57
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UPDATE!
New batteries got the engine started.
Let her run 1/2 hour. Registered 14.0 charging. Drive about 8 miles and he battery gauge started to plummet. Down to 12.0.
So we drove to Freightliner.
They are in the process of hooking up to diagnostic to see if it's a short or the alternator.
Hoping for a simple solution.
Nicole
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01-24-2017, 02:21 PM
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#13
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Senior Member
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 6,587
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Quote:
Originally Posted by 2008MDY
UPDATE!
New batteries got the engine started.
Let her run 1/2 hour. Registered 14.0 charging. Drive about 8 miles and he battery gauge started to plummet. Down to 12.0.
So we drove to Freightliner.
They are in the process of hooking up to diagnostic to see if it's a short or the alternator.
Hoping for a simple solution.
Nicole
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Sounds like the alternator is failing when it gets up to operation temp. As I said in a previous post ask for a rebuild with OEM parts and you will be happy. An off the shelf alternator will likely not perform well. Some shops push you to just replace with new.
__________________
Steve Ownby
Full time since 2007
2003 Monaco Signature
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01-24-2017, 03:03 PM
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#14
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Member
Join Date: Jan 2017
Posts: 57
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Good to know. It is the alternator.
It is not original to this coach. Freightliner is getting in touch with Monaco Coach to see what they recommend as well.
Could this be why the alternator that is in the coach now failed because it wasn't a rebuild?
Thanks so much!!
This advice is priceless. Keep it coming!
Nicole
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