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Old 05-20-2013, 08:31 PM   #11
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Boo, just another thought. Have you checked the charging rate on the coach batteries. Over charging will cause lots of things you have mentioned. Gassing and sweating are symptoms of overcharging!!
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Old 05-20-2013, 08:41 PM   #12
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Boo, just another thought. Have you checked the charging rate on the coach batteries. Over charging will cause lots of things you have mentioned. Gassing and sweating are symptoms of overcharging!!

No I have not....... My batts are charged off the Magnum 1200 watt inverter.

In reading the manual for the Magnum, I got the impression that it is very "smart" with regard to charging the house bats in the optimum manner..... that is, the charging starts out agressive and then tapers of to almost nothing to keep the bats right where they should be.

I will do some further research though..... Thanks for the tip.

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Old 05-21-2013, 12:20 AM   #13
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Well, I checked the Magnum Inverter manual again. The inverter does indeed charge the batteries using a multi-stage charger as I mentioned in the previous message. The three stages are bulk, absorb and float and there is a light for each stage on the control panel.

I don't think I've ever seen my control panel without the float light being on, indicating the lightest charge option. I'd think that at some point all three lights should be out, at least once in awhile.

I found that holding the on/off button down for three seconds will disable the charger completely. I'm going to clean the batts thoroughly and then disable the charger for a day or so and and see if the batts stay clean.

That may tell me if they are in fact being over-charged by the inverter.

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Old 05-21-2013, 10:59 PM   #14
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I JUST got back from buying some replacement battery straps. I had some difficulty finding ones that were short enough so that the ratchet doesn't sit on top of the batteries. Tomorrow I'll try them as its too dark down at the barn right now. My backup plan is 48" zipties, probably chained together to make the length long enough. I wonder if those will 'melt' away. I guess tightly pulled rubber cargo straps could be used as well, but they have to be installed tightly!!
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Old 05-22-2013, 06:48 AM   #15
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What Color are yuou Batteries

Hi Boo,

What color are your batteries? My Berkshire came with gray house batteries. The outgassing from them is awful. I to have lost my straps and each year have had to strip the bay and repaint. This year I coted the bay with pickup truck bed spray and added venting to the bay.

I have a buddy with a Bekshire who had the dealer replace the batteries before he took delivery. He has a different type. His bay looks brand new. We both have 2008 coaches. Makes me think there is something funny with the gray batteries.
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Old 05-22-2013, 01:02 PM   #16
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Boo, just another thought. Have you checked the charging rate on the coach batteries. Over charging will cause lots of things you have mentioned. Gassing and sweating are symptoms of overcharging!!
Wouldn't another indication of over charging be a lot of water being used in the battery? I don't need to add very much water to mine and there is a decent amount of corrosion that accumulated in the battery bay. The battery pads cut down on this greatly.

Boo,
Do you need to add water very often? If not, I don't believe that they are being overcharged. Not a battery expert, just trying to reason this out.
Tom
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Old 05-22-2013, 02:53 PM   #17
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Hi Boo,

What color are your batteries? My Berkshire came with gray house batteries. The outgassing from them is awful. I to have lost my straps and each year have had to strip the bay and repaint. This year I coted the bay with pickup truck bed spray and added venting to the bay.

I have a buddy with a Bekshire who had the dealer replace the batteries before he took delivery. He has a different type. His bay looks brand new. We both have 2008 coaches. Makes me think there is something funny with the gray batteries.
Mine are white with red tops. USA Batteries or some similar name. Tom, my pads are due here Friday. Then I'm going to take all the bats out AGAIN, clean up the tray and compartment AGAIN and hope for an improvement.

I've already used some of that "rubberized" paint on the bottom of the compartment and tray. This morning I noticed corrosion on the slide assembly; damn. I think that paint may be the same thing as truck bed spray.

As delivered from FR my house bats were NOT wired correctly. I corrected that this morning, so that may help with more even charging.

I've not added water but twice in the last 6 months; when I first got the coach last November it had been pretty much unused for two years. At that time the four bats took right at 1.5 gallons of water. Recently, I added water again, but nowhere near as much. Also, each bat took a significantly different amount of water.

Like everything else, I'll eventually "wrestle this bear to the ground".
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Old 06-17-2013, 03:30 PM   #18
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I am also having a problem with corrosion around the house batteries on my 2011 Berkshire 360FWS. I'm plugging into 110 so it will trickle charge 24/7. Some have suggested that I put a timer on the switch so it just charges a few hours a day. Has anyone solved this problem yet?
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Old 06-17-2013, 11:15 PM   #19
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I am also having a problem with corrosion around the house batteries on my 2011 Berkshire 360FWS. I'm plugging into 110 so it will trickle charge 24/7. Some have suggested that I put a timer on the switch so it just charges a few hours a day. Has anyone solved this problem yet?
Mike, I've purchased the upgraded control panel to replace the stock one that FR installs. This allowed me to cut the charging rate down to about 50% and my problems disappeared. Unfortunately, the upgraded control panel is around $225.

If your charger is truly a "trickle" (like .5 amp or less) leaving it on 24/7 would not be a problem, I wouldn't think.

Good Luck

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Old 06-17-2013, 11:38 PM   #20
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disconnect switch is the best way to let the battery rest and avoid over charging or parasitic draw. with no current there is no production of gas which is what causes the corrosion. you can charge the battery once a month to keep it happy.
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