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Old 09-27-2015, 07:22 AM   #15
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Any hope that we can find "dry" batteries for our rigs? I do not understand why we are using 1950's (or older) battery technology.... why? Cost? Thanks

You CAN buy AGM (Absorbed Glass Mat) batteries from Lifeline or another supplier, they are sealed for life and never need water unless you abuse them severely. Many tout the benefits, including the fact that there is no corrosion in the battery tray, or the connecting posts. Expect to pay between 3-4 times more than flooded batteries.

Here is a nice 8D size from Trojan Batteries.
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Old 09-27-2015, 07:56 AM   #16
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What about these comments?

Mineral Oil in Battery??????
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Old 09-27-2015, 08:01 AM   #17
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What about these comments?

Mineral Oil in Battery??????
Hi Joe, here is a lot of reading/comments on this subject
https://www.google.com/search?q=Mine...com&gws_rd=ssl
As you may have read, I added it years ago, and glad I did. My batteries are from '09 and still working great. The compartment looks great also!
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Old 09-27-2015, 08:13 AM   #18
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What about these comments?

Mineral Oil in Battery??????

Do you mean the comment from the one person? The one that thinks mineral oil will neutralize acid?

I've been using mineral oil in every FLA battery I have for 30+ years, including all of my aircraft batteries where it's a standard in the industry, acid and corrosion are a bad mix with aluminum aircraft, and never had an issue yet.

Unless not having boiled dry batteries or corrosion is an issue.
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Old 09-27-2015, 04:00 PM   #19
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We are getting ready for a trip and today I thought of the fact that I had not checked the battery levels in several months. I was shocked to find that the water level in all cells in all four of the 6V house batteries was below the top of the plates! One cell in the huge 12V engine battery was low also.

It took over a gallon of water to get them back up to the proper level. The amazing thing is that everything has been working great so hopefully I have not done any permanent damage to the batteries.

My MH stays plugged in at the house all the time when not on the road, so the batteries are constantly charging. I bet I don't make that mistake again!

Learn from my dumb mistake! Keep those batteries checked and topped off! Be SURE to use only distilled water!
MS,
I'd like you to read my opening post here. Does this sound familiar or what?
Scott

8D battery as a house batt, any thoughts?
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Old 09-27-2015, 04:58 PM   #20
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Thanks for the heads up on checking the batteries.Leaving for a month trip,
and they were a little low.I just replaced all in June.Who would think they
needed topping off.
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Old 09-28-2015, 04:12 PM   #21
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MS,
I'd like you to read my opening post here. Does this sound familiar or what?
Scott

8D battery as a house batt, any thoughts?

Yep!
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Old 09-28-2015, 07:07 PM   #22
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I've been using maintenance free marine deep cycle batteries for over 20 years on bass boats. Class 29 yield over 100 a hours. Have had AC Delco's last 8 seasons. Keep charged after use. Keep on chargers during off season. These are less costly than AGM, more power per size, and last. And I don't need to add water every month.

Several manufacturers out there, most made by Deka.

Also made in 31 sizes and more ahours.
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Old 09-28-2015, 07:44 PM   #23
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AGM I think may take a different charger? Not sure how the alternator affects it?


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Old 09-28-2015, 10:38 PM   #24
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works great so glad i did it yrs ago Just add mineral oil
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Old 09-29-2015, 07:04 PM   #25
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Thanks for the battery information, I am having trouble with my batteries after setting two days my house batteries are low my step wont come down until I start the coach.
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Old 09-30-2015, 08:32 AM   #26
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If you boil the batteries DRY. they are toast.. however if it's say 1/8 inch or 1/4 inch below the top of the plates then teh plates will still be moist due to some laws of physics and fluid dynamics so you may well be OK.

How often should you check the batteries...
NEW. with as progressive dynamics charge wizard controlled converter my Interstate U-2200's needed water annually

As they aged the need became more and more frequent down to about quarterly before they failed.. New DEKAs are now 18 months old and I've yet to add water... Did check them recently (Last week I think).

Now the Magnetek 6300 converter which is not all that well regulated or controlled can boil 'em dry in as little as 2 weeks (more or less) so check them every Saturday.
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