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Old 01-12-2021, 05:36 PM   #1
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Brand: Thor Motor Coach
Model: Axis 24.1
State: Maryland
Posts: 109
THOR #5251
AGM deep cycle batteries

We have a 2017 Thor Axis 24.1
We want to replace the house batteries
We would like to use AGM deep cycle batteries.
Anyone have advice as a yes or no. ?
Advice?
Thanks, Jim
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Old 01-12-2021, 05:43 PM   #2
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Model: Vegas 24.1
State: Washington
Posts: 135
THOR #10717
https://www.fullriverbattery.com/dc-series-batteries/
I have 3 of them and want a 4th but they are pricy. They work awesome.
You can search between 6v versus 12v options, both get the job done, just cleaner wiring on the 6V, but if one of the batteries die, then you are stuck, versus two 12V batteries in parallel.
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Old 01-12-2021, 05:47 PM   #3
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Model: Newmar Bay Star Sport 300
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THOR #6826
Quote:
Originally Posted by jimbo21793 View Post
We have a 2017 Thor Axis 24.1
We want to replace the house batteries
We would like to use AGM deep cycle batteries.
Anyone have advice as a yes or no. ?
Advice?
Thanks, Jim


I think itís a great choice. But youíll get a lot of folks telling you to get 6V batteries or lithium etc. Personally, I like cheap flooded 12V deep cycle but I understand lots of folks donít want the hassle of checking the water. Get fresh ones on sale at your convenience instead of waiting until itís urgent and mid trip.
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Old 01-12-2021, 06:00 PM   #4
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THOR #8860
AGM batteries?

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Old 01-12-2021, 06:15 PM   #5
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State: Arizona
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Unless you need to lay them on their side they have onlyone other advantage.
You do not have to add water.
They add incredible expense for little value.

The last page of my signature thread has a link to the
Real life(lab tests)
Of batteries and their real cost.

(I have agm in all of my other vehicles.
Agm can withstand offroad punches your rv will never encounter.)
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Old 01-12-2021, 07:26 PM   #6
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State: Florida
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THOR #7035
I agree with Duck. They also seem to be less tolerant of poor charging maintenance than FLA batteries.
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Old 01-12-2021, 07:39 PM   #7
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But you've got to admit: that "no adding water" thing; is pretty neat!
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Old 01-13-2021, 04:03 PM   #8
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Brand: Thor Motor Coach
Model: Tuscany 45AT
State: Ohio
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Have installed AGMs in the last 3 motorhomes and wouldn't use anything but. Have never had a problem with charging and longest in use was 6 years and still going strong. Our current MH is the Tuscany 45AT and the batteries are under the floor of the rear closet (very bad decision) and to maintain had to remove everything from the closet. Upgraded to AGMs within a month of owning and sold the wet cells at a very good price.
Very happy AGM owner!!
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Old 01-13-2021, 05:11 PM   #9
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State: Missouri
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I changed to Trojan T105 AGM a couple years back

It accomplished what I wanted

No corrosion in the battery compartment
No water additions and gassing off
Slower to discharge when sitting for a few weeks
Faster to charge up
Enough capacity to run the heater and fridge plus the misc overnight when boondocking

The flooded batteries were three years old and had been abused trying to make it overnight in non generator run times

I plan on keeping the coach several years so it was a no brainer for me
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