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08-28-2014, 11:44 AM
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#1
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Junior Member
Join Date: May 2014
Location: Littleton
Posts: 12
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x213 Owner - Looking for battery
Hi, I currently have an Exide Stowaway 24MDPST battery on my TT looking to get a backup to charge up and have on had while boondocking. Found Kirkland 27DC which appears to be a 12v battery as well, but with more cold cranking amps (500 for the Exide vs 750 for the Kirkland).
My question is, as long as both batteries are 12v, I should be ok, right (meaning it doesnt matter if Amp hours, cold cranking amps, and other values are different?)
Thanks
2007 Tundra TV
2015 Jayco Jay Feather X213
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08-28-2014, 02:02 PM
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#2
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Site Team
Join Date: Nov 2012
Location: Clearwater, FL area
Posts: 5,196
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Not Quite....
The new battery should be from the same Mfr, Model, Voltage AND Ah rating as the existing battery.
Do not mix batteries with different Amp Hours.
Do not mix TRUE DEEP CYCLE batteries with regular Marine/RV type batteries (which are not true deep cycle batteries) that come with most TT/RV's.
There are a lot reasons for not mixing batteries.
If you have an Interstate 85Ah 12VDC battery, add the identical battery to it.
If you are going replace your existing battery with new batteries, and plan on dry-camping, buy TRUE DEEP CYCLE batteries, they do not have any Cold Cranking Amp ratings.
Just my thoughts,
Don
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08-28-2014, 02:16 PM
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#3
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Lost in the Woods
Join Date: Jun 2014
Location: Woodstock
Posts: 1,128
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Quote:
Originally Posted by Mustang65
Not Quite....
The new battery should be from the same Mfr, Model, Voltage AND Ah rating as the existing battery.
Do not mix batteries with different Amp Hours.
Do not mix TRUE DEEP CYCLE batteries with regular Marine/RV type batteries (which are not true deep cycle batteries) that come with most TT/RV's.
There are a lot reasons for not mixing batteries.
If you have an Interstate 85Ah 12VDC battery, add the identical battery to it.
If you are going replace your existing battery with new batteries, and plan on dry-camping, buy TRUE DEEP CYCLE batteries, they do not have any Cold Cranking Amp ratings.
Just my thoughts,
Don
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+1..very good advice
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08-28-2014, 02:29 PM
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#4
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Junior Member
Join Date: May 2014
Location: Littleton
Posts: 12
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Ok, so what I'm hearing is that that rather than have 1 battery (Battery A) hooked up to my TT, with a second (Battery B) on Deck just in case, the recommendation is to just buy a second battery that is the same model/specs as Battery A and just wire them up together on the TT.
Would either of the options described above be preferred, or is it personal preference? Thanks!
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08-28-2014, 02:34 PM
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#5
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Lost in the Woods
Join Date: Jun 2014
Location: Woodstock
Posts: 1,128
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if you just have it unhooked waiting for the other to get depleted than it doesn't have to be the same. Your choice
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08-28-2014, 05:00 PM
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#6
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Site Team
Join Date: Nov 2012
Location: Clearwater, FL area
Posts: 5,196
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If you buy a second battery, same model as first, you do not have to worry about watching the battery when it hits 50% (12VDC) and having to swap them out. EXAMPLE - If you hook up (2) 85 Ah 12VDC batteries in parallel, you will have 170 Ah, this will last longer........
Just my thoughts,
Don
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08-28-2014, 07:05 PM
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#7
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Senior Member
Join Date: Jan 2014
Location: Aurora CO
Posts: 2,334
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It is also said that batteries should match in size, make and manufacture date.
__________________
Jim & Kim from Colorado
2014 Eagle 30.5 RLS
2015 Dodge 3500HD SRW 6.7L
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08-29-2014, 06:10 AM
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#8
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Senior Member
Join Date: Sep 2011
Location: King George
Posts: 2,761
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This is why alot of folks will pick up two each 6VDC Golf cart batteries from COSTCO or SAMs CLUB. This will give you 12VDC at 220 AHs for around $180 plus core charge and then you can keep your other 85AH Battey as a standalone backup (not connected until needed)
I would want to have at least 200AHs of battery capacity for any off-road camping to run my basic appliances and lights etc...
In my case I can guarantee that just having one battery on-line would drop below the 50% charge state around 10-11PM at night sounding alarms making me get out of bed to switch to a fresh second battery.
Roy Ken
__________________
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA
RETIRED DOD DOAF DON CONTRACTOR Electronics Tech 42YRS
"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"
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08-30-2014, 11:02 AM
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#9
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Senior Member
Join Date: Jun 2010
Location: Saskatoon Sask Canada
Posts: 10,714
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IF a battery has a CCA rating it is not a true deep cycle.. You will get much better life getting 2 6 volt golf cart batteries and wiring them + to - to get 12 volts.. they will have more power and longer life than 2 12 volt batteries.
__________________
Seann
2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 900watts of solar, Lithium batteries (400amp hour), 2000 watt (4000 surge) whole house inverter.
145days boondockinig in2023 2022/151 2021[/COLOR]
93/2020,157/2019219/2018 206/2017,215/2016, 211/2015, 196/14, 247/13, 193/12
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09-22-2014, 06:13 PM
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#10
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Junior Member
Join Date: May 2014
Location: Littleton
Posts: 12
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Belated Thanks!
Update, I bought the Kirkland 27DC battery at Costco, put it on a trickle charger before the trip, charged it completely and tried it out before my trip to be sure it at least worked a little bit!
Took it out, had it on deck, but the original battery never ran out, so good news there. Anyway, when the time comes I should be set. Thanks again.
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