John Canfield
Site Team
Actually Winnie started installing them in 2006 on the diesel Class As. I have no idea when the gas rigs got them.AStravelers said:
Batteries, Charging, Hard/Slow Start
- Thread starter AnRVAndADog
- Start date
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John Hilley
Well-known member
I don't think the gas ever got them until maybe a whole new charging system in some of the newer ones.
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AnRVAndADog
Well-known member
AStravelers said:
Can't find one. (Bought one.) Back in 2004 the Adventurer was the highest end on gasoline models (but the 33V was the smaller of the line).
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AnRVAndADog
Well-known member
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AnRVAndADog
Well-known member
John Canfield
Site Team
Did you ever mention how old your chassis batteries are?
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AnRVAndADog
Well-known member
John Canfield said:
I don't know. There's a sticker on the chassis battery (1st pics I posted) that looks a whole lot like a date sticker, says 12/17 for December 2017??? I dunno. I'm gonna replace it today, see what happens then...
AStravelers
Well-known member
Your picture is showing a battery voltage of 13.0V. Assuming you took the picture within about 5-15 minutes of turning the engine off, the voltage you are seeing is the "surface charge" in the battery. The voltage of a fully charged battery is 12.6-12.8V. "Surface charge" is the high voltage which is left in the battery after charging for some time. It is perfectly normal to see this high voltage. It may take several hours for this surface charge to go away in there is no load on the battery.AnRVAndADog said:
To dissipate the surface charge turn the head lights on for 2 minutes or so, then turn them off and see what your chassis battery voltage is. If the voltage is still above 12.8V turn the head lights on for another minute or so.
Once you get the battery voltage down to about 12.6-12.7V leave the lights off and let the battery sit for 6-12 hours and then recheck. If the voltage now down to 12.5 to 12.4(or lower) , you either have a bad battery or you have phantom power draw which is draining your battery.
Mark_K5LXP
Well-known member
Sounds like you're going to check the box with a new battery but with most cars/trucks these days using side post batteries including my Itasca, it's a fairly straightforward process to pluck a battery out of a vehicle you have around and do a quick swap in the RV to see if it makes a difference. I'm not even sure what battery is supposed to be in my pickup truck, I put whatever works in there and swap batteries around between my cars and truck as needed. Batteries can develop a sudden loss in capacity, in this case it would be a sudden increase in impedance which an auto parts store load tester would easily reveal. But this isn't as common as a sudden problem with a cable or cable connection. In the course of replacing the battery you may very well inadvertently correct a bad terminal connection which of course resolves the problem but at the expense of an unneeded battery. I guess we'll have to wait and see how this story ends after the battery R&R.
Mark B.
Albuquerque, NM
Mark B.
Albuquerque, NM
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AnRVAndADog
Well-known member
AnRVAndADog said:
Replaced the chassis battery with a new, fully-charged, battery. Control panel shows 12.8 volts and still won't turn over the engine without Battery Boost. Gonna be in the shop this week to replace the AC so I'll have them look at this... Thanks to all who helped.
penman39
Well-known member
AnRVAndADog said:
To me that sounds like you have a high resistance/loose connection somewhere between your battery and starting motor.
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AnRVAndADog
Well-known member
AnRVAndADog said:
It was the starter, making intermittent contact. Getting it replaced...
John Canfield
Site Team
Very good, let me know when you're up and running and I'll show the thread as problem solved.
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AnRVAndADog
Well-known member
AnRVAndADog said:
New starter kicks butt. The Old Girl starts like a race car!
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AnRVAndADog
Well-known member
John Canfield said:
Problem solved! Thanks to everyone!
John Canfield
Site Team
Great! Thanks for the after action report. 
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