Go Back   iRV2 Forums > CAMPING, TRAVEL and TRIP PLANNING > Boondocking
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-30-2015, 02:48 PM   #15
Senior Member
 
Join Date: Jan 2008
Location: Big Bear Lake, Ca
Posts: 886
Quote:
Originally Posted by BendOR View Post
Besides the physical:
twice the batt boxes and tiedowns
twice the weight to remove and replace if stored
twice the terminals and 1 added wire for anti-corrosion
twice the acid

If Zac's rig is going to be used for boondocking, there is the care and feeding of true deep cycle batts for a "return on investment" of twice (or more) of the $$$. To include a capability for a 15.5-16 volt charger (or solar) for top charging and equalizing plus the time involved to measure and monitor.

YMMV.

The weight is the same for and equal battery capacities, same amount of lead to make the same amount of energy. The acid for equal capacity is also the same.

A 12v battery has 6 cells connected internally. A 6 volt battery has 3 cells connected internally. True large capacity deep cycle batteries were more common in 6 volt but now true large capacity deep cycle are available in 12v as well.

I make the decision based on the amount of room available in the battery compartment. My two 6volts provide 360 ah of capacity. Two 12 v would provide about 210 ah unless I went with an L16 which are 215 ah each and weigh 115 lbs each. They were too tall so I went with the J105 H which are about 4 inches shorter and weigh 95 lbs each. Having 27 amps of solar lessens the importance of the size of the battery bank.
__________________

__________________
2004 CRV TOAD/1990 WRANGLER TOAD ROCK BUILT
Forest Grump 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 06-30-2015, 03:24 PM   #16
Senior Member
 
Join Date: Dec 2013
Posts: 164
In his original post, OP stated he is replacing 1 marine group 24 (~75 ah) with 2 deep cycle 6 volts batts (~200 ah). Now, it might be 2 6 volt plus a, hopefully, larger 12 volt. His maintenance will increase.
__________________

__________________
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 06-30-2015, 03:30 PM   #17
Senior Member
 
Mr_D's Avatar
 
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 28,521
Quote:
Originally Posted by SkiSmuggs View Post
Most RVs have a single 12v battery and no one talks about being screwed if it fails!
Really?
We have 4 Group 31 925 CCA starting batteries and 4 8D AGMs for the house.
We haven't had an RV with only a single battery since the 1988 Okanagan 17' Type B MH.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is online now   Reply With Quote
Old 06-30-2015, 03:33 PM   #18
Senior Member
 
Mr_D's Avatar
 
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 28,521
Quote:
Originally Posted by Forest Grump View Post
The weight is the same for and equal battery capacities, same amount of lead to make the same amount of energy. The acid for equal capacity is also the same.

A 12v battery has 6 cells connected internally. A 6 volt battery has 3 cells connected internally. True large capacity deep cycle batteries were more common in 6 volt but now true large capacity deep cycle are available in 12v as well.

I make the decision based on the amount of room available in the battery compartment. My two 6volts provide 360 ah of capacity. Two 12 v would provide about 210 ah unless I went with an L16 which are 215 ah each and weigh 115 lbs each. They were too tall so I went with the J105 H which are about 4 inches shorter and weigh 95 lbs each. Having 27 amps of solar lessens the importance of the size of the battery bank.
True, but they are pricy and big. Some $700 each for an 8D AGM and they weigh about 125#'s each.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is online now   Reply With Quote
Old 06-30-2015, 07:38 PM   #19
Senior Member
 
wa8yxm's Avatar
 
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 22,825
Quote:
Originally Posted by Zac808 View Post
1) Can I just charge it via generator or vehicle the same as my 12V?
Yes... Though just as it will take longer to run 'em down, IT will take longer to recharge them less you upgrade the convrter

Quote:
2) When not in use, can I use a trickle charger the same way I would for a 12V? Leave the batteries in series and connect the charger.
I am very anti-trickle charger.. But very pro Battery Minder or Battery Tender (both trademarks) or devices like them.. This includes 3-Stage RV convertrs like th progressive Dynamics 9200 series or the IOTA with IQ-4

That said some folks call Battery Minder/Tenders, trickle chargers..They are not.. They are very SMART trickle chargers.

The key thing to remember is you still have a 12 volt battery..It is now a 2-piece unit but it is still a 12 volt battery..Roughly 3 times the size of the one you left behind.
__________________
Home is where I park it!
wa8yxm is offline   Reply With Quote
Old 06-30-2015, 08:08 PM   #20
Senior Member
 
Join Date: Jan 2008
Location: Big Bear Lake, Ca
Posts: 886
Quote:
Originally Posted by BendOR View Post
In his original post, OP stated he is replacing 1 marine group 24 (~75 ah) with 2 deep cycle 6 volts batts (~200 ah). Now, it might be 2 6 volt plus a, hopefully, larger 12 volt. His maintenance will increase.

Sorry it won't, still 6 cells, physically. If your talking about going from 60 ah to 200+ ah in the 6's then the same would be true for a single 215 ah 12v. No one in their right mind would use a marine deep cycle hybrid as a single battery for boondocking.
__________________
2004 CRV TOAD/1990 WRANGLER TOAD ROCK BUILT
Forest Grump is offline   Reply With Quote
Old 06-30-2015, 08:12 PM   #21
Senior Member
 
Join Date: Jan 2008
Location: Big Bear Lake, Ca
Posts: 886
Quote:
Originally Posted by Mr_D View Post
True, but they are pricy and big. Some $700 each for an 8D AGM and they weigh about 125#'s each.

I can't fit in an 8D, and I don't care for AGM's. So for me it's either L16's or the J105's. The J105's were less than $300 each and they fit.
__________________
2004 CRV TOAD/1990 WRANGLER TOAD ROCK BUILT
Forest Grump is offline   Reply With Quote
Old 07-01-2015, 06:08 AM   #22
Senior Member
 
Join Date: May 2013
Location: North Central Vermont
Posts: 1,018
Quote:
Originally Posted by Mr_D View Post
Really?
We have 4 Group 31 925 CCA starting batteries and 4 8D AGMs for the house.
We haven't had an RV with only a single battery since the 1988 Okanagan 17' Type B MH.
Ah, but that is you. Go to any campground and take a poll. Most will be single battery. All 3 of my trailers only had one until I changed them.
__________________
2015 F350 XLT PSD CCSB SRW, Andersen Ultimate hitch
'12 Cougar High Country 299RKS, Mor/Ryde Pinbox
1/77 Armor Bn, 5th Mech, I Corps
SkiSmuggs is offline   Reply With Quote
Old 07-03-2015, 07:44 PM   #23
Senior Member
 
garbonz's Avatar
 
Join Date: Aug 2013
Posts: 620
Quote:
Originally Posted by BendOR View Post
In his original post, OP stated he is replacing 1 marine group 24 (~75 ah) with 2 deep cycle 6 volts batts (~200 ah). Now, it might be 2 6 volt plus a, hopefully, larger 12 volt. His maintenance will increase.
NONONO. There are only 6 holes in the 2 6 volt batteries, vice the 12 holes in two 12 volt, so his maintenance would be cut in half..
__________________
2005 Bigfoot 1500C8.2 Truck Camper; MANY mods, to many to list
2007 Chevy 2500 Duramax Std Bed Ext Cab
garbonz is offline   Reply With Quote
Old 07-04-2015, 09:24 AM   #24
Senior Member
 
Join Date: Dec 2013
Posts: 164
Quote:
Originally Posted by BendOR
In his original post, OP stated he is replacing 1 marine group 24 (~75 ah) with 2 deep cycle 6 volts batts (~200 ah). Now, it might be 2 6 volt plus a, hopefully, larger 12 volt. His maintenance will increase.


Quote:
Originally Posted by garbonz View Post
NONONO. There are only 6 holes in the 2 6 volt batteries, vice the 12 holes in two 12 volt, so his maintenance would be cut in half..
Priceless, thanks for the humor.

If only the Trojan user manual could make it that easy.
__________________
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 07-04-2015, 01:33 PM   #25
Senior Member
 
Join Date: Jan 2008
Location: Big Bear Lake, Ca
Posts: 886
So there would be no difference in maintenance 6 holes = 6 holes.
__________________
2004 CRV TOAD/1990 WRANGLER TOAD ROCK BUILT
Forest Grump is offline   Reply With Quote
Old 07-04-2015, 11:43 PM   #26
Senior Member
 
garbonz's Avatar
 
Join Date: Aug 2013
Posts: 620
Quote:
Originally Posted by BendOR View Post
[/I]



Priceless, thanks for the humor.

If only the Trojan user manual could make it that easy.
Whew, at least you get my humor, some folks are grumps here. I won't go into any of the technical issues as it would be too complicated.

Get an AGM or Gel and you don't got no holes at all. So 0/6th of the maintenance.

Whew.
__________________
2005 Bigfoot 1500C8.2 Truck Camper; MANY mods, to many to list
2007 Chevy 2500 Duramax Std Bed Ext Cab
garbonz is offline   Reply With Quote
Old 07-05-2015, 11:52 AM   #27
Senior Member
 
Join Date: Jan 2008
Location: Big Bear Lake, Ca
Posts: 886
You need a xxxx!
__________________
2004 CRV TOAD/1990 WRANGLER TOAD ROCK BUILT
Forest Grump is offline   Reply With Quote
Old 07-13-2015, 08:28 PM   #28
Senior Member
 
Murf2u's Avatar
 
Join Date: Aug 2011
Location: Near Toronto, Canada
Posts: 1,842
Quote:
Originally Posted by garbonz View Post
Whew, at least you get my humor, some folks are grumps here. I won't go into any of the technical issues as it would be too complicated.

Get an AGM or Gel and you don't got no holes at all. So 0/6th of the maintenance.

Whew.

Put a tablespoon of mineral oil in each cell of each battery and you don't got no maintenance no mo' either. LOL.
__________________

__________________
Ted 'n' Laurie, plus Jackson (aka Deputy Dog, the Parson Russell Terrier 'fur kid') and, Rylie (who crossed the Rainbow Bridge June 14, 2012).
Murf2u is offline   Reply With Quote
Reply

Tags
charging



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


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 02:06 PM.


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