Reply
 
Thread Tools Display Modes
Old 08-10-2013, 11:52 AM   #11
Junior Member
 
Join Date: Mar 2013
Posts: 29
MtnGuy - After some more research, I understand the problem a little better. Your battery SRM24 is listed as Dual Purpose and has a reserve of 140. Mine 24M-rd is listed only as a Marine Starting Battery and has a reserve of 72, quite a difference and not created to last. I think that if Interstate thought it was Dual Purpose, they would have listed it in that category on their sit.
__________________

__________________
Tedscastle is offline   Reply With Quote
Old 08-10-2013, 11:59 AM   #12
Denver, CO
 
garbonz's Avatar
 
Join Date: Jan 2013
Location: Denver, CO
Posts: 1,905
Quote:
Originally Posted by Tedscastle View Post
MtnGuy - After some more research, I understand the problem a little better. Your battery SRM24 is listed as Dual Purpose and has a reserve of 140. Mine 24M-rd is listed only as a Marine Starting Battery and has a reserve of 72, quite a difference and not created to last. I think that if Interstate thought it was Dual Purpose, they would have listed it in that category on their sit.
AND that battery, as you probably know by now will not perform well, or last long. Once you gauge your usage pattern (number of AH needed per day and days between charges) then buy a battery or battery bank that has at least twice the capacity and make sure they are first rate deep cycle batts. IMO of course.
__________________

__________________
2007 Chevy 2500HD Classic LBZ Duramax/Allison (Stock)
2005 Bigfoot 1500C8.2 AWESOME
garbonz is offline   Reply With Quote
Old 08-10-2013, 12:22 PM   #13
Moderator Emeritus
 
Triguy's Avatar
 
Join Date: Aug 2010
Location: Southeast Wisconsin
Posts: 6,950
Quote:
Originally Posted by Tedscastle View Post
If I have to swap batteries out, is there a disadvantage to going with 6 volt?
No real disadvantages. The one that crops up every now and then is the case where a battery dies. In the case of a two 6-volt in series bank, the one dead 6-volt renders the bank useless for your 12-volt systems. To me, the chances of this happening are remote. And, happening suddenly, with no warning, while on a trip is more so.

Generally speaking, I believe you typically can get a better bang for your buck in the cost per amp-hour with a pair of 6v in series.

Also, with 6v batteries, you are more assured of getting true deep-cycle batteries, intended for what you're using them for. I say this because the term "deep-cycle" is thrown around loosely and you need to be careful. Stay with name brands and look around at some of the really good battery manufacturers like Trojan to make your decision about 12v vs 6v. Trojan makes good deep cycle batteries as do a few others.

To be really clear, though (and as a caveat), true deep cycle 12 volts and 6-volt banks can be very similar and the 6-volt option is not extraordinarily better.

I note that the Trojan T-145s are currently $190 each while the relatively bigger T-1275 plus are $210 each. Two T-1275s in parallel will provide 40 additional Ah than two T-145s in series at a cost of $40 and 20 more lbs on the trailer. That makes the 12 volt setup enticing to me right now. But this can change. I got my T-145s for $150 each when the equivalent 12-volts were $240 each so you need to stay up on it.
__________________
Scott
DW, 3 Kids and our Goldens

2012 Shamrock 233S
2008 Toyota Sequoia 5.7L 4WD
Triguy is offline   Reply With Quote
Old 08-10-2013, 12:59 PM   #14
Junior Member
 
Join Date: Mar 2013
Posts: 29
So much to learn. Thanks for all of your help

I just received a response from the salesman stating that they do install the batteries after delivery and that they should be Deep Cycle capable of powering the trailer for the weekend if fully charged. I have sent links from Interstates site as to what I found with my battery being labeled a Starting Battery.
__________________
Tedscastle is offline   Reply With Quote
Old 08-10-2013, 01:08 PM   #15
Denver, CO
 
garbonz's Avatar
 
Join Date: Jan 2013
Location: Denver, CO
Posts: 1,905
Quote:
Originally Posted by Triguy View Post
No real disadvantages. The one that crops up every now and then is the case where a battery dies. In the case of a two 6-volt in series bank, the one dead 6-volt renders the bank useless for your 12-volt systems. To me, the chances of this happening are remote. And, happening suddenly, with no warning, while on a trip is more so.

Generally speaking, I believe you typically can get a better bang for your buck in the cost per amp-hour with a pair of 6v in series.

Also, with 6v batteries, you are more assured of getting true deep-cycle batteries, intended for what you're using them for. I say this because the term "deep-cycle" is thrown around loosely and you need to be careful. Stay with name brands and look around at some of the really good battery manufacturers like Trojan to make your decision about 12v vs 6v. Trojan makes good deep cycle batteries as do a few others.

To be really clear, though (and as a caveat), true deep cycle 12 volts and 6-volt banks can be very similar and the 6-volt option is not extraordinarily better.

I note that the Trojan T-145s are currently $190 each while the relatively bigger T-1275 plus are $210 each. Two T-1275s in parallel will provide 40 additional Ah than two T-145s in series at a cost of $40 and 20 more lbs on the trailer. That makes the 12 volt setup enticing to me right now. But this can change. I got my T-145s for $150 each when the equivalent 12-volts were $240 each so you need to stay up on it.
X2 times 10. Especially about the apparent claims for deep cycle batts that really aren't. Some good sources of information are the marine and solar applications, which are much more mature than the RV industries. Look around and you can make the best decisions.

I have 2 -210 AH Deka 6V Deep cycles in my RV and 2 - 12V - Gel cell's in my boat (ventilation restricted) and have been happy with them in both situations dry camped or at anchor. It's really all about internal construction of the batts themselves and that is hard to get real information on.
__________________
2007 Chevy 2500HD Classic LBZ Duramax/Allison (Stock)
2005 Bigfoot 1500C8.2 AWESOME
garbonz is offline   Reply With Quote
Old 08-13-2013, 03:19 AM   #16
Moderators' Assistant
 
bikendan's Avatar
 
Join Date: Jan 2007
Location: Camano Island, Washington
Posts: 13,257
yep, dealers install the batteries, NOT the manufacturer.

most dealers install the cheapest one they can get away with, unless you negotiate a different one in the deal.
all they care about is getting you off the lot, with the trailer.
__________________
Dan-Retired Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 4x4 3.5 Ecoboost w/Max Tow Package
Equalizer WDH and Prodigy BC
bikendan is online now   Reply With Quote
Old 08-13-2013, 11:12 PM   #17
Senior Member
 
raspivey's Avatar
 
Join Date: Jun 2013
Location: Brazoria County, Texas
Posts: 1,360
I've had no problems running with the dual purpose batteries. I dry camp about half the time for usually 2 - 3 nights. I use a pair of group 24's with about 70 - 80 Ah each. A couple of things I'm anal about....constantly charged and filled, never taken below 55 -60%. My last set were going on three years without a problem before I let them go with my trade in. Sure, I had to be conservative with them, but that was well more than enough for a few nights. I actually never saw them go below 70% now that I think about it. So...if you were only going to dry camp around 3 days and take care of them, it's probably more cost effective to skip the true deep cycles.
__________________

__________________
2015 Chevy Silverado LTZ - HD tow package
2017 Rockwood 2703WS Emerald Edition
raspivey is offline   Reply With Quote
Reply

Tags
battery

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 09:17 PM.