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Old 02-03-2015, 10:31 PM   #1
TigeDuner's Avatar
Join Date: Oct 2007
Location: Tucson, Arizona
Posts: 49
Chassis battery continuous draw on my 2002 35U Adventurer

Hi Guys,

I am looking for some help trying to find a continuous draw that exists on my chassis or engine starting battery. I put a new fully charged battery in and within 5 days of the coach sitting without use, the battery was dead. I was able to charge it up and it worked fine until it went dead again 5 or so days later. I now disconnect the battery every time we stop for more than a day or so or when it is not in use.

We use the RV for trips, but no where near full time. I have read the other posts about adding a trickle charger, but I believe I have a bigger issue than those small draws that nag a coach.

The two coach batteries remain charged even when not plugged into shore power.

When I connect the battery cable, I can hear some sounds, which might be relays, but cannot isolate them.

I am hoping that somebody might have had similar issues that could help with this odd draw.

This issue was not present when we bought the coach, so I am assuming that it is something that we are leaving on.

Also, I believe that shore power will not charge this battery, only the alternator.

Thanks for your help,


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Old 02-03-2015, 10:51 PM   #2
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Lots of parasitic draws on a battery now days. Your propane detector might be on 12 V, the refer might take 12 V to run the gas burner. Our DSDP has a 5 amp solar panel to help keep up with the loads like that.

2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
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Old 02-04-2015, 12:03 PM   #3
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Is the inverter over the passenger seat being left on? Sometimes those are wired to the start battery. If you have a F53 you may need to check that the cruise control oressure switch recall has been done and that you do not have the beginning of a short in that part of the harness which is a long shot but could be running the battery down.
Neil V
2001 Winnebago Adventurer WFG35U
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Old 02-04-2015, 12:43 PM   #4
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Join Date: Oct 2007
Location: Tucson, Arizona
Posts: 49
Ours is the Ford chassis with the V10. I have not had the recall done yet, but should take it in - I have received several notices about it. Not sure about the inverter over the passenger seat. I do not think ours is located there, but will check. We do have the video switching to the right of the TV and the antenna boost switch is located there as well which should be off.

Since our cruise control works, I have not taken the time to go to the dealer.
Thanks for the push to get it done.
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battery, chassis, vent

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