Finding Coach Batteries on a 2004 Damon Challenger 371

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Original Member Title: 2004 Damon Challenger 371
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The owner of a 2004 Damon Challenger 371 was looking for an owner’s manual and, more urgently, the location of the coach batteries after both the chassis battery and coach batteries were dead. Members noted that RV owner’s manuals from that era are often generic, so component manuals and model-specific brochures may be more useful.

Members generally agreed the coach batteries should be in an accessible service location, most likely under the entry steps or in an outside compartment, and...
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GrayCPA

New Member
Joined
Jun 21, 2026
Posts
3
Location
Rutherfordton, NC
I purchased a 2004 Damon Challenger 371 about a year ago and I am beginning to have problems that an owner's manual will help with. The nice folks at Thor couldn't help me so I am asking all of you. Help. At a bare minimum, I need to know where the Coach batteries are. I've managed to kill the vehicle battery(trickle charger was too much for it) and the coach batteries are dead. Thoughts?
 
I did an online search and found this brochure that may help. Most of the owner's manuals are very generic and cover multiple models so aren't a lot of help. If you were to ask specific questions, there probably are people here that could help.

The batteries are probably under the steps, or accessible from outside somewhere. Have you looked for them, and if so, where did you look?
 
Good chance the coach batteries are under one of the entry steps.. That is a common place for them.

If all else fails do a full walk around.. Open all basement doors and look They are large and easily spotted. Now the switches and such. those can be harder to find.

Wiring does tend to be serial number specific but some things are ... More standard among models or even across model lines.

For other stuff like Fridge, water heater, AC, converter, Furnace even doors and mirrors you identify the make and model (often from the ID plate and google: Make Model Manual
and download a PDF. I have several still from when I lived in a Damon Intruder.
 
I did an online search and found this brochure that may help. Most of the owner's manuals are very generic and cover multiple models so aren't a lot of help. If you were to ask specific questions, there probably are people here that could help.

The batteries are probably under the steps, or accessible from outside somewhere. Have you looked for them, and if so, where did you look?
Thank you Kirk, I have looked around and can't find the batteries. The steps are pretty secure but that is what pri-bars are for. I'll let you know the results
 
Good chance the coach batteries are under one of the entry steps.. That is a common place for them.

If all else fails do a full walk around.. Open all basement doors and look They are large and easily spotted. Now the switches and such. those can be harder to find.

Wiring does tend to be serial number specific but some things are ... More standard among models or even across model lines.

For other stuff like Fridge, water heater, AC, converter, Furnace even doors and mirrors you identify the make and model (often from the ID plate and google: Make Model Manual
and download a PDF. I have several still from when I lived in a Damon Intruder.
Thank you John. I'll take your advice and see what I can find. Here is my reply to Kirk
"Thank you Kirk, I have looked around and can't find the batteries. The steps are pretty secure but that is what pri-bars are for. I'll let you know the results"
 
Thank you John. I'll take your advice and see what I can find. Here is my reply to Kirk
"Thank you Kirk, I have looked around and can't find the batteries. The steps are pretty secure but that is what pri-bars are for. I'll let you know the results"
You should not need pry bars.. Just one hand to lift the front edge of the step. Likely the middle one if 3 or top if 2 But sometimes they put 'em in a basement compartment always outside never in the house part.
 
The steps are pretty secure but that is what pri-bars are for.
If you need a prybar to open the steps, that won't be where the batteries are located. Your batteries need regular maintenance and so they are located in some location that has fairly easy access. I have never seen any RV that you could not access the batteries without use of any tool. This brochure says that there is an ice-chest in the stairwell and battery access there. It also states that there are two 6V batteries and a battery disconnect.
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Thank you Kirk, I have looked around and can't find the batteries. The steps are pretty secure but that is what pri-bars are for.
The Bounder that I used to have contained batteries under the entry steps. First I had to lift the mat from the steps, then there was a plywood lid and I had to remove two large screws before I could lift that piece of plywood. There were the batteries, a pair of deep cycles.
 

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