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03-20-2020, 08:40 PM
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#1
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Seasoned Camper
Join Date: May 2019
Location: Coatesville
Posts: 55
M.O.C. #24081
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single or double batteries
In our 2019 High Country we have a domestic Ref.
It operates off an inverter while not hooked up to AC.
After about 12 hrs the inverter shuts down do to the battery to low to keep the ref operating. Would a dual battery system help????
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03-20-2020, 08:57 PM
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#2
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Montana Master
Join Date: Sep 2019
Location: lake stevens
Posts: 504
M.O.C. #24938
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Sounds like you have a single 12v Battery which is likely less than 100 AH (Amp Hours), the dealer you purchased from NEVER should have rolled you with a single battery. With that said you need to install a minumim of 2 6V batteries preferably AGM (no maintanenace batteries) Wet Cellwill require you to add water. With 2 x 225AH 6V that will more than double your current capacity. I would even recommend 4 6v with a solar charging which would give you 5 times the usable power (AH) you currently have. It is all about the Amp hours. Note you could also go Lithium but at about $1000 her 100AH it is spendy...
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03-21-2020, 05:47 AM
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#3
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Seasoned Camper
Join Date: May 2019
Location: Coatesville
Posts: 55
M.O.C. #24081
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Thank you for the info.
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03-21-2020, 08:48 AM
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#4
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,669
M.O.C. #9969
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Don't know exactly what Montana is doing, but many others with a Residential Fridge have at least two batteries OEM and some even three.
We had the two OEM and I added two more when we purchased. They lasted until last summer, 4 years, when the OEMs started dying so I switched to four 6 volt AGMs, so we can run the Fridge for a few days if we had to.
__________________
Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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03-21-2020, 10:10 AM
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#5
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Seasoned Camper
Join Date: May 2019
Location: Coatesville
Posts: 55
M.O.C. #24081
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Thank you
Yes, I am going to go the 2 x 6V AGM 225 AH batteries
Tks again
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03-24-2020, 01:56 PM
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#6
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Montana Master
Join Date: Jan 2016
Location: STAYTON
Posts: 1,118
M.O.C. #18157
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Quote:
Originally Posted by kjohn6363
Thank you
Yes, I am going to go the 2 x 6V AGM 225 AH batteries
Tks again
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Go 4 6V batteries. You'll be much happier.
Mark
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03-24-2020, 05:10 PM
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#7
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Seasoned Camper
Join Date: May 2019
Location: Coatesville
Posts: 55
M.O.C. #24081
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I will consider 4 batteries instead of 2 batteries.
Tks, Ken
Do you know about the Montana Club Plaques for your ladder?
Contact Chuck at jmmccubbins@aol.com or 775-560-4428
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03-29-2020, 02:17 PM
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#8
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Montana Fan
Join Date: Mar 2019
Location: Heber City
Posts: 129
M.O.C. #23676
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Has anyone found a good source for 6V AGM Batteries?
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03-29-2020, 02:59 PM
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#9
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Montana Master
Join Date: Sep 2019
Location: lake stevens
Posts: 504
M.O.C. #24938
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Quote:
Originally Posted by allenclme
Has anyone found a good source for 6V AGM Batteries?
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I will only use Trojan Batteries They are the best Wet and AGM on the market ( I have 8 in our Boat that in year 7 and still going strong. In fact I just ordered 4 yesterday from online Battery Sales (They are national) they have their T105 217AH AGM 6V on sale for $229 ea. I was going to use AGM however changed at the last minute and ordered Wet cell Trojan T105 Plus at 225AH for $125 (which is a smoking hot price). I will install a watering system which makes them pretty much maintenance free. We camp in a warm climate 90-100 degrees whereas AGM batteries do not like heat so I decided to stay wet cell for that reason. You should not charge AGM in a compartment that can exceed 120F, whereas the front compartment can easily reach those temps at 90F ambient.
Anyway Online Battery Sales is having a big sale on Trojans thru tomorrow (they also ship Nation Wide)
https://www.onlinebatterysale.com/pr...rojan-battery/
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03-29-2020, 05:41 PM
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#10
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Montana Fan
Join Date: Mar 2019
Location: Heber City
Posts: 129
M.O.C. #23676
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Flooded Batteries
Quote:
Originally Posted by lightsout
I will only use Trojan Batteries They are the best Wet and AGM on the market ( I have 8 in our Boat that in year 7 and still going strong. In fact I just ordered 4 yesterday from online Battery Sales (They are national) they have their T105 217AH AGM 6V on sale for $229 ea. I was going to use AGM however changed at the last minute and ordered Wet cell Trojan T105 Plus at 225AH for $125 (which is a smoking hot price). I will install a watering system which makes them pretty much maintenance free. We camp in a warm climate 90-100 degrees whereas AGM batteries do not like heat so I decided to stay wet cell for that reason. You should not charge AGM in a compartment that can exceed 120F, whereas the front compartment can easily reach those temps at 90F ambient.
Anyway Online Battery Sales is having a big sale on Trojans thru tomorrow (they also ship Nation Wide)
https://www.onlinebatterysale.com/pr...rojan-battery/
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How did you vent those batteries? I haven't been able to find a battery case that holds 2 GC-2's. (I would need two). AGM's don't have to be vented, right?
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03-29-2020, 06:02 PM
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#11
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Montana Master
Join Date: Aug 2015
Location: SWFL
Posts: 965
M.O.C. #17801
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Mine came with only battery. Told the dealer that was inadequate with a residential fridge and they put one in, no questions asked. Montana should know better.
__________________
2016 Montana 3711FL
2005 Ford F350, 6.0 diesel, short bed
Demco Hitchiker Auto Slide hitch
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03-29-2020, 06:05 PM
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#12
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,690
M.O.C. #4831
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You don't say what year and model you have, but most Montanas have plenty of room for four, or even six, 6V batteries. If you have the generator prep you might be too tight for six 6V but four definitely should fit. I use the white plastic battery box for four of my batteries. You have to make your own vent system, but PVC parts make this easy.
Here is a description the of the four 6V battery box and one of the places you can buy one. Clicky
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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03-29-2020, 07:09 PM
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#14
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Montana Fan
Join Date: Mar 2019
Location: Heber City
Posts: 129
M.O.C. #23676
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Thank you both for the suggestions.
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03-29-2020, 08:39 PM
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#15
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Montana Master
Join Date: Aug 2009
Location: Grand Rapids
Posts: 1,898
M.O.C. #9561
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You don't have to go over board, just get 6 volt deep cycle batteries that are not AGM to save money if you don't do a lot of dry camping.
Two batteries should cost you no more than $200....
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03-29-2020, 09:02 PM
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#16
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Montana Master
Join Date: Sep 2019
Location: lake stevens
Posts: 504
M.O.C. #24938
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Quote:
Originally Posted by mazboy
You don't have to go over board, just get 6 volt deep cycle batteries that are not AGM to save money if you don't do a lot of dry camping.
Two batteries should cost you no more than $200....
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2 6v at $100 each are not gong to be quality Batteries. Costco has Insterstate 6v at $98 each that they are JUNK. Spend a little extra and buy Tojans
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03-30-2020, 08:40 AM
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#17
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Established Member
Join Date: May 2019
Location: council bluffs
Posts: 42
M.O.C. #24154
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You said "domestic", but wonder if you meant DOMETIC, which would be the RV type fridge, with the capability to run off of propane? If so, it has been my experience that it is near impossible to run it in ELECTRIC mode from the inverter. The RV fridge makes it's "cold" from a heating element method, and that eats electricity. Much more efficient to run it on propane in that case?
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03-30-2020, 09:47 AM
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#18
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Seasoned Camper
Join Date: Mar 2016
Location: Flushing
Posts: 72
M.O.C. #18353
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Don’t blame Keystone for the number and type of battery. It is the responsibility of the dealer when it comes to batteries. The only battery used during delivery to the dealer (and then removed) is one provided by the delivery trucker to power the electric brakes.
Dealer also provides the battery box, which they can obtain from Keystone$$$$.
Misconception regarding venting; fumes are heavier than air, box needs to be vented at bottom, connection at top is to provide incoming air.
__________________
2018 GMC Denali 3500 Duramax Dually
2019 Montana 3791RD
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03-30-2020, 09:58 AM
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#19
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Montana Master
Join Date: Aug 2009
Location: Grand Rapids
Posts: 1,898
M.O.C. #9561
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have to disagree with lightsout. have used walmart and sams club batteries and they work just fine and have a great warranty with them. it is just his opinion to buy a more expensive battery.
regardless, get 6 volt batteries rather than 12 volt for your rig.
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03-30-2020, 11:29 AM
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#20
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Montana Master
Join Date: Sep 2019
Location: lake stevens
Posts: 504
M.O.C. #24938
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Quote:
Originally Posted by mazboy
have to disagree with lightsout. have used walmart and sams club batteries and they work just fine and have a great warranty with them. it is just his opinion to buy a more expensive battery.
regardless, get 6 volt batteries rather than 12 volt for your rig.
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AI Am not saying all 6V brands are bad but there are many with less then stellar track record of reliability especially with 6V.
I have also bought Walmart batteries however this were 12v automotive and or marine starting batteries. Walmart does not even sell 6v Deep Cycle GC2's that is a different animal with much different quality controls that 12V.
Sams Club Sells Duracell which is a middle of the Road commodity Battery, still not the level of Trojan which is the gold standard for Deep Cycle Flooded batteries. Not to mentions throughout the US and Canada there are very few Sams Clubs still open for business. Also not the reviews for the Duracel EGC2 are not very good which is comparable to the Trojan T105-plus which Has stellar reviews.
Then there is Costco who also sells a cheap 6v made by Interstate, read the reviews (1-star) almost all the reviews did not even get 2 years out of their Batteries.
Like anything these days you Pay for what you get... I an somewhat Bias towards Trojan as I am nearly 8 years in on 8 6V on our 48' boat and they are still performing fine (maybe another year left). However with Duracel and Trojan being the same price it is a no brainer Trojan all day long...
By the way I was not required to provide a core nor was I charged for a core so $125 for Trojan T105-Plus 225AH batteries with no core charge impossible to beat.
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