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Old 03-28-2012, 03:36 AM   #1
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battery size

HI,
last year I bought a 1997 Winnebago 34 ft Adventurer,
with the chevy 454, it dosen't want to start all the time,battery weak!
the people we bought it from put all new batteries in it the day we picked it up,looking into this not starting! I found for the Chassis battery they installed
a Marine grade cranking, with 500 CCA! doe's any body think that this battery
is too small for the big block . testing the battery it has 12 volts,and you put a jump to it ,it starts right up.
any thoughts!!!
Noahron
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Old 03-28-2012, 04:37 AM   #2
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A little lite but I would take the battery terminals off and clean the post and terminals
real good.( one of the best cleaners is a can of coke)(then wash off with water)
Make sure all connections are tight and see what happens. If you still have the problem you need to load test the battery and check starter current draw to find
the problem. One of the best investments made is a battery load and starter tester
that cost around 50 or 60 dollars.
Only after you are sure the battery and terminals are ok do you put any grease or terminal spray on for protection.

Art
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Old 03-28-2012, 05:05 AM   #3
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Question

my next step is to go through and clean all the terminals ,spray the terminal
with protector ,load test!!?
thanks noahron
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Old 03-28-2012, 05:23 AM   #4
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As long as you do not do what a buddy did, cleaned everything then sprayed it all and
then put it together and wondered why it did not work. Ha Ha

Art
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Old 03-28-2012, 06:50 AM   #5
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The chassis battery in a motor home usually can not sit for months or even weeks without being charged. Most use some form of trickle charging to maintain the chassis battery while the MH is not being used.
At 12 volts the battery is over 50% depleted and should be charged. Voltage for a charged battery is around 12.7. The life of the battery is shortened if allowed to stay at 12 volts for an extended period.
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Old 03-28-2012, 09:19 AM   #6
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I would install a chassis battery that is as large as the battery mount will allow.
In the 454 powered motorhomes that I have owned, starting a hot engine, is sometimes more difficult than starting it when cold. I usually installed a quality group 27 size, battery with as much CCA capacity as I could find for the chassis battery. I had good success with Interstate brand batteries.
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Old 03-28-2012, 10:21 AM   #7
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Quote:
Originally Posted by noahron View Post
I found for the Chassis battery they installed
a Marine grade cranking, with 500 CCA! doe's any body think that this battery is too small for the big block . testing the battery it has 12 volts,and you put a jump to it ,it starts right up.
Noahron, You want to install a Group 27 lead-acid battery in your motorhome as the automotive battery. As suggested, look for the most CCAs possible in that size and you will be fine.

I am currently running an Interstate.
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Old 03-28-2012, 10:59 AM   #8
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Marine means it's not rated for use below ZERO (C) (32 F) degrees, don't mean it won't work at lower temps, just means it's not rated.

More cranking amps might indeed help, but 500 SHOULD be enough.

When my Group 70-something battery does not crank my Workhorse 8.1L It is usually dirty terminals.
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Old 03-28-2012, 09:01 PM   #9
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I'm on my 3rd chassis battery. Generally they don't last very long at all. I do have a BatteryMINDer on the job and de-sulfating the battery 24/7.
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Old 03-29-2012, 10:44 AM   #10
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Quote:
Originally Posted by noahron
HI,
last year I bought a 1997 Winnebago 34 ft Adventurer,
with the chevy 454, it dosen't want to start all the time,battery weak!
the people we bought it from put all new batteries in it the day we picked it up,looking into this not starting! I found for the Chassis battery they installed
a Marine grade cranking, with 500 CCA! doe's any body think that this battery
is too small for the big block . testing the battery it has 12 volts,and you put a jump to it ,it starts right up.
any thoughts!!!
Noahron
1st is it not cranking or slow, clicking?
1st thought in my head (oh boy), bad connection, possibly at starter. Or weak starter/solenoid.
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Old 03-29-2012, 11:50 AM   #11
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I think you are making a wise move renting first. By the end of the trip you will have a good idea of what you want and DON"T want in an RV.

Did you tell the rental company you are going to tow a car?
I just looked at Cruise America's website and they have a 2,500 lb weight limit.

You need to find out exactly how your auto insurance covers your car while being towed behind an RV. Talk to your agent and tell them exactly what you are going to do.
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Old 03-29-2012, 03:37 PM   #12
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it's clicking, put jumpers on it starts right up!
I will check all the wires this weekend, weather permitting !
the Adirondacks are still cold snowing right now!
thanks for the advice
noahron
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Old 03-29-2012, 05:28 PM   #13
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Quote:
Originally Posted by noahron View Post
it's clicking, put jumpers on it starts right up!
I will check all the wires this weekend, weather permitting !
the Adirondacks are still cold snowing right now!
thanks for the advice
noahron


Sounds like you either need to clean the terminal to battery cable connections, or your battery is bad, or not of sufficient capacity. By connecting the jumper battery, you are eliminating the original battery, and the battery to terminal connections. Make sense??
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Old 03-29-2012, 09:51 PM   #14
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Quote:
Originally Posted by Arch Hoagland View Post
I think you are making a wise move renting first. By the end of the trip you will have a good idea of what you want and DON"T want in an RV.

Did you tell the rental company you are going to tow a car?
I just looked at Cruise America's website and they have a 2,500 lb weight limit.

You need to find out exactly how your auto insurance covers your car while being towed behind an RV. Talk to your agent and tell them exactly what you are going to do.
Oops..... Just discovered I posted an answer in the wrong thread!
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