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Old 08-05-2021, 02:58 PM   #1
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Battery Issue

We spent about a month on the road and traveled 5,000 miles in our 07 Fleetwood Flair.

We have been home for about seven weeks.

I parked the RV in our storage lot and about a month later brought it home to air out and do a good interior cleaning.

I backed in the driveway and about an hour later the engine wouldn't start.

I removed the battery and put it on my charger, it showed 12.5 volts.

I charged it overnight to 13.0 volts and about 30 hours later reinstalled it. The engine still wouldn't start.

I did get the generator started and after about 10 minutes I was able to start the engine.

I'm guessing that I have a bad cell in the battery, its only a year old. It's an off brand installed by the PO.

I'm also having a problem getting the slides in and out. Could that be because I have a weak battery. The slides only operate with the engine running, and brake set.

The step is giving me an issue as well. The step and slides operate off the starting battery, not the house batteries.

The last few days of the trip I could only get the slides to move if I unloaded them, I only had about 100# in each one, pretty light I thought.
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Old 08-05-2021, 04:53 PM   #2
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Just as a thought I’d have the battery load tested, that would answer your question as to the battery being good or not.
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Old 08-05-2021, 05:39 PM   #3
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Make sure the water levels are good (assuming the battery has filler caps) then charge the battery.
Once charged, let it rest off of the charger for several hours, then check the voltage with a multimeter. A fully charged good battery should be at 12.6+ volts.
Additionally, if it has filler caps, check for bad cells by testing the specific gravity of each cell with a hydrometer.
You could also get it tested as suggested above, but I prefer using a multimeter and hydrometer to periodically track the values and get ahead of any failing batteries.
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Old 08-05-2021, 08:11 PM   #4
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Sounds like batteries to me, I agree with load testing.
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Old 08-06-2021, 07:02 PM   #5
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The leveling system and slides require good high quality 12VDC to operate. Weak/failing batteries simply can't supply the required voltage.
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Old 08-06-2021, 07:22 PM   #6
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I agree with battery test and checking water level. Even if it is a maintenance free battery you can still add distilled water. I bought a load tester from Harbor Freight $19.99 sometimes on sale for $14.99

https://www.harborfreight.com/100a-6...ter-61747.html
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Old 08-06-2021, 07:43 PM   #7
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Originally Posted by nvs4602 View Post
I agree with battery test and checking water level. Even if it is a maintenance free battery you can still add distilled water. I bought a load tester from Harbor Freight $19.99 sometimes on sale for $14.99

https://www.harborfreight.com/100a-6...ter-61747.html
That one is ok, but it really only tests for load on the batteries. For as much discussion that goes on here, I recommend spending a little more. The digital one will find shorts in a cell, tell you how much of the rated capacity. Iíve found bad batteries that passed a load test but had shorted or dead cells with this one.

https://www.harborfreight.com/digita...zer-66892.html
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Old 08-21-2021, 04:09 PM   #8
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I need a group 78 battery.

Im looking at a Duracell ultra Gold with 800 cca, 985 ca, no spec on reserve capacity, but it should be around 100 min.

This battery is in stock at Batteries+ and has a 3 year replacement warranty for $160.

I store the coach outside at a mini-storage. So far theft has not been a problem but I suspect if I get a high dollar battery it will walk.

Opinions on the Duracell Ultra Gold?
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Old 08-22-2021, 04:16 PM   #9
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Quote:
Originally Posted by bmcgc View Post
I need a group 78 battery.

Im looking at a Duracell ultra Gold with 800 cca, 985 ca, no spec on reserve capacity, but it should be around 100 min.

This battery is in stock at Batteries+ and has a 3 year replacement warranty for $160.

I store the coach outside at a mini-storage. So far theft has not been a problem but I suspect if I get a high dollar battery it will walk.

Opinions on the Duracell Ultra Gold?
Never owned a Duracell auto battery, Iíve always bought Interstate or NAPA batteries.
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Old 08-22-2021, 04:28 PM   #10
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There are only a few battery manafactures. They just lable them different.

Find out who makes it and see who else markets them.
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Old 08-22-2021, 04:55 PM   #11
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Duracells made by East Penn and I've used and had good service from East Penn at attractive prices.
Yes you can buy "better" at significantly higher prices that I doubt will ever break even no less come out ahead.
Current EP AGMs in our boat are about to finish 8 seasons of NE boating and winter storage with no charging capability.
Recently installed 8 Duracell AGM GCs in the MH as a house bank.

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Old 08-22-2021, 06:00 PM   #12
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Look for corroded or dirty connections at every connection on the battery cables. At 12.5 bolts it should have started without issue.
Take them off, clean, lube with dielectric grease and put them back. A good thing to do even if it's not the issue
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Old 08-23-2021, 02:45 AM   #13
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Look for corroded or dirty connections at every connection on the battery cables. At 12.5 bolts it should have started without issue.
Take them off, clean, lube with dielectric grease and put them back. A good thing to do even if it's not the issue
Thats the first thing I did. I removed the battery, put it on my charger and cleaned all the connections.

The battery will not hold a charge.
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