Go Back   iRV2 Forums > TRAVEL TRAILER, 5th WHEEL & TRUCK CAMPER FORUMS > Travel Trailer Discussion
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 03-20-2014, 11:55 AM   #1
Member
 
Join Date: Apr 2013
Posts: 38
Battery Life

I never seem to get enough from my group 24 or group 27 batteries and am looking to step it up within reason. I'm looking at 2 setups:

1) Two 6 Volt Interstate golf cart batteries in parallel.

2) One group D27M blue top Optima 12 volt battery.

I know Trojan makes a good 6 volt, but Dealer sells Interstate, and this is for a new camper already on order. Quick charging time is also important. Feedback appreciated!
__________________

__________________
iMaki is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 03-20-2014, 12:04 PM   #2
Senior Member
 
dennis45's Avatar


 
Join Date: Jun 2012
Location: BC
Posts: 6,452
Quote:
Originally Posted by iMaki View Post
I never seem to get enough from my group 24 or group 27 batteries and am looking to step it up within reason. I'm looking at 2 setups:

1) Two 6 Volt Interstate golf cart batteries in parallel.

2) One group D27M blue top Optima 12 volt battery.

I know Trojan makes a good 6 volt, but Dealer sells Interstate, and this is for a new camper already on order. Quick charging time is also important. Feedback appreciated!
Two good 6V Deep Cycle Batteries is your best solution.
__________________

__________________
Dennis & Carol
2003, 4006, 41' DutchStar, Spartan, ISC 8.3L W/BanksPower - 2013 Honda CRV, BlueOx Baseplate, Aventa Bar & Patriot Brake. And the 04 Bird, Sunshine Car.
dennis45 is online now   Reply With Quote
Old 03-20-2014, 01:37 PM   #3
Senior Member
 
rgvtexan's Avatar
 
Winnebago Owners Club
Freightliner Owners Club
Join Date: Oct 2009
Location: NE WA or S TX
Posts: 2,232
Quote:
Originally Posted by iMaki View Post
I never seem to get enough from my group 24 or group 27 batteries and am looking to step it up within reason. I'm looking at 2 setups:

1) Two 6 Volt Interstate golf cart batteries in parallel.

2) One group D27M blue top Optima 12 volt battery.

I know Trojan makes a good 6 volt, but Dealer sells Interstate, and this is for a new camper already on order. Quick charging time is also important. Feedback appreciated!
If you put the 6volt GC batteries in parallel, you will have 6 volts, you want to put the 2 6 volts in series for 12 volts.

The 2 GC batteries will give you the most bang for the buck and are true deep cycle. Most gp 24/27 are not.
__________________
04 Horizon QD, 12 Ford Flex, Excalibar, Brakemaster, Winter Texan, RVin! since 1974
Norm, Donna & Tinker Kat 74 MGB-GT, 75 MGB, 01 Z3
Life is a Timed Event, you only get One Go Around!
rgvtexan is online now   Reply With Quote
Old 03-20-2014, 01:51 PM   #4
Member
 
WrongWayRand's Avatar
 
Forest River Owners Club
Join Date: Jun 2013
Location: Kentucky
Posts: 93
You'll hear a lot of feedback on this - some people prefer one solution while others prefer another. I myself would choose the pair of new 6v Trojans (T-105 is a good choice in my experience) They weigh in at about 125lbs for the pair and are larger form factor than a G24 battery, but the capacity will be significant. Do you know how many amp hours you will be using, even approximately?

If you really only want to do a little better than the dealer supplied HD24-DP battery (or similar) you could improve a bit by going with either the blue top or an SRM__ which has a little more reserve capacity. If you want to get significantly more capacity you'll need to go to a pair of batteries (you can pair up 12v to gain capacity too, just wired differently) The Interstate site has charts for all the different batteries, including the blue top you listed, so you can compare what they have to offer and see how large/heavy they will be.

- Randy
__________________
1975 VW Westfalia camper
2104 Rockwood A122 A-frame
WrongWayRand is offline   Reply With Quote
Old 03-20-2014, 02:11 PM   #5
Member
 
Join Date: Apr 2013
Posts: 38
Yes, I meant in series. Now that I know two 6 volts can add up to 125 lbs, I'm inclined to go blue top Optima which is far less weight. I can't afford to add unnecessary tongue weight. I'm already pushing it.
__________________
iMaki is offline   Reply With Quote
Old 03-20-2014, 05:07 PM   #6
Senior Member
 
Join Date: Dec 2013
Posts: 164
You are going to get less AH from the Blue Top than you did with your group 24, 66ah vs ~75ah.

Optima Marine Battery Blue Top D27M

Going to 2 x 6v's will give you over 200 ah. Seems that is far from "unnecessary."
__________________
1998 Kit 23' TT, 210 AH, PM4B-45, RV-30S PWM, 280w solar, Trimetric, Wave 3, Samlex PST-150w
2004 Nissan Titan 4x4 with Tow, Hellwig helper springs, Banks Catback
BendOR is offline   Reply With Quote
Old 03-20-2014, 05:16 PM   #7
Senior Member
 
vsheetz's Avatar


 
Fleetwood Owners Club
Ford Super Duty Owner
Join Date: Jun 2012
Location: SoCal
Posts: 11,778
I myself would choose the pair of new 6v Trojans (T-105 is a good choice in my experience)
__________________
Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
vsheetz is offline   Reply With Quote
Old 03-20-2014, 06:46 PM   #8
Senior Member
 
Join Date: Sep 2013
Posts: 596
1. There's no need for an Optima, they will give you less power per $ than your other options. They are designed for very high vibration environments such as tanks and off road vehicles.

2. Do you have a Costco nearby? Their gc2 golf cart 6v are pretty good for the money.

3. I'd avoid Interstate, last I checked they don't make true deep cycle batteries, they make marine hybrids (which is indicated by the CCA rating on their batteries). A true flooded lead acid will not have a CCA rating. I 've had 2 fail in the first 2 year of ownership despite above average maintenance. Dealers sell them because they are a high margin product (most consumers can't differentiate between a good and bad battery).

4. Trojan makes a good battery but costs more.

Flooded batteries require regular maintenance. Whatever you end up with check the water level often, only top off with distilled or rain water (never tap or regular store bought water), check the specific gravity of each cell at least twice a year, equalize it at least once a year and avoid discharging it below 50% capacity (about 12.0v at the battery with no load applied).

Get the dealer to throw in the boxes, straps and jumper if you bring your own batteries.

2 6v would be wired in series to get 12v, 2 12v would be wired in parallel to increase capacity. Check out battery university dot com.
__________________
marcham is online now   Reply With Quote
Old 03-21-2014, 08:52 AM   #9
Senior Member
 
dagmandt's Avatar
 
Outdoors RV Owners Club
Join Date: Feb 2013
Location: Auburn, WA
Posts: 427
Do yourself a favor and read this: HandyBob's Blog « Making off grid RV electrical systems work

Then shop here: Backwoods Solar - Solar, Hydro and Wind Systems for your home. Backwoods Solar

I ended up with two 6v Crown batteries. I use an Iota 55amp 15.5v charger and can charge my batteries in 2 hours or less. I get 4 days out of them when dry camping. That includes watching a bit of TV, heat at night, power awning, power stabilizers, power tongue jack, LED lights, radio etc...
__________________
TV: 2012 Ford F350 CC 6.7L 4x4
TT: 2014 Wind River 250RDSW [Dual Crown 6v, Trimetric, Iota 15.4v 55A charger]
dagmandt is offline   Reply With Quote
Old 03-23-2014, 10:32 PM   #10
Member
 
Join Date: Nov 2011
Posts: 48
I'll take the minority position on this topic…

I recently left dual GC2 for dual Grp24. Just posted another comment about this so here is be shortened version….

- found I didn't need such a larger Amp Hour Bank
- Too heavy and awkward to continue to pull and replace from my TT -- I store my batteries on a battery tender when not in use and my TT is not kept at home.
- with dual 12V, one fails and you can still operate. With Dual 6V, one fails and you are replacing both.

Dual G24 = ~170AHr
Dual GC2 = ~220AHr

Start by figuring out about much do you need before recharging.
__________________

__________________
Clubhouse is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Large power draw on chassis battery '94 Kountry Star omegacanuck Newmar Owner's Forum 54 01-31-2016 09:22 PM
Battery life 12 volt house mojavemover RV Systems & Appliances 24 03-14-2014 09:56 AM
Battery charging mystery Kenneth Neal RV Systems & Appliances 12 02-25-2014 06:34 PM
Battery Life Gadget Man Class A Motorhome Discussions 9 01-12-2014 07:26 PM
Battery life Alan Wilson Roadmaster Motorhome Chassis Forum 35 12-07-2013 04:11 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:31 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.