Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-19-2006, 01:52 PM   #1
Riviting Espresso
 
ColdEspresso's Avatar
 
1978 25' Caravanner
Boca Raton , Florida
Join Date: Mar 2006
Posts: 151
Images: 1
Send a message via AIM to ColdEspresso Send a message via Yahoo to ColdEspresso
Newbie Battery Question

I recently bought a 78 Caravanner and picking it up next week. I have been told by an inspector that the batteries are weak and the Univolt is good. I am not sure if the unit has 1 or 2 batteries. Which setup is better. Can someone tell me what batteries I should replace it/them with? Deep cycle? Open or closed cell? What will perform best and give me the greatest longevity? Any idea on price? Also, I plan on eventually upgrading to a newer Intellipower system. Will I be able to use the same batteries or will I need to replace them again.

Thanks,

Mario
__________________

__________________
ColdEspresso is offline   Reply With Quote
Old 06-19-2006, 02:01 PM   #2
3 Rivet Member
 
Killo1's Avatar
 
2005 22' Safari
Santa Ana , California
Join Date: May 2006
Posts: 167
I've been told, and truthfully don't know why, that you should use 2 six volt batteries in series. Supposedly they last longer. Do some research on it. I've been told by quite a few different people that it works.
__________________

__________________
Alan
2005 22ft Safari
2003 Chevrolet Suburban Z71 5.3l
"Life is like a box of chocolates..." Forrest Gump
Killo1 is offline   Reply With Quote
Old 06-19-2006, 02:10 PM   #3
Rivet Master
 
bhayden's Avatar
 
1978 24' Argosy 24
Woodinville , Washington
Join Date: May 2006
Posts: 661
Images: 10
I'd go with the maintenance free. Good quality batteries today will last a long time and I've found the maintenance free batteries give off less corrosive junk when charging. Pulling out the battery and checking electrolite levels is a headach I can live without. I do watch the charge indicator on the battery. I turn off the Univolt when it's showing fully charged and try to turn it back on when it "dips into the yellow". Haven't check what battery voltage that cooresponds to yet.

My neighbor was told to go with two 6V deep cycle batteries for his motorhome. I don't understand why you'd want to do this. Battery terminals are a pain to maintain. Unless there's some wierd space constraint I think you can get more amp/hours in a single 12V package than two six volt batteries and certainly easier to take out and charge.

Remember the battery is what activates the trailer brakes in "break-away" mode so you don't want to be travelling with it dead. Your TV harness should recharge the battery but it could take some time before it has enough umph to stop the trailer. I've considered adding a small isolated motorcycle size battery as a reserve.

-Bernie
__________________
bhayden is offline   Reply With Quote
Old 06-19-2006, 05:01 PM   #4
Rivet Master
 
1977 31' Sovereign
1963 26' Overlander
1989 34' Excella
Johnsburg , Illinois
Join Date: Jul 2005
Posts: 2,941
Deep cycle batteries from Walmart are nice and if they have a problem, within the first two years, they give you a new one (after they test the old one) at no cost to you. How can you go wrong with a free replacement?
__________________
dwightdi is offline   Reply With Quote
Old 06-19-2006, 05:17 PM   #5
3 Rivet Member
 
crowbar68's Avatar
 
1975 27' Overlander
fort wayne , Indiana
Join Date: Apr 2006
Posts: 184
batteries

definetly deep cycle as you can charge and discharge w/o damaging the battery like an automotive one. i believe the 6volt set up gives you more ampere hours (capacity) than a single 12v. but you will need the space. measure twice buy once! you can always retro fit!

have fun

crowbar

p.s. i have a die hard from sears for around a hundred
__________________
crowbar68 is offline   Reply With Quote
Old 06-19-2006, 05:35 PM   #6
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Quote:
Originally Posted by crowbar68
definetly deep cycle as you can charge and discharge w/o damaging the battery like an automotive one. i believe the 6volt set up gives you more ampere hours (capacity) than a single 12v. but you will need the space. measure twice buy once! you can always retro fit!

have fun

crowbar

p.s. i have a die hard from sears for around a hundred

Two 6 volt batteries in series at 100 amp hours is 1200 watts.

Two 12 volt batteries in parallel at 50 amp hours is 1200 watts.

Same difference4.

However, when the series setup has one battery that gets weak, or bad, it's done.

When the parallel setup has one battery that goes bad, disconnect it and you still have some power left.

Two sixes, in series, in a travel trailer, are never superior to two twelves in parallel, given the same wattage.

Further, big 6's are much harder to find than big 12's.

Simple ohms law, E=IR or W=EI

Andy
__________________
Inland RV Center, In is offline   Reply With Quote
Old 06-19-2006, 07:32 PM   #7
Rivet Master
 
peegreen's Avatar
 
1998 31' Excella 1000
South Berwick , Maine
Join Date: Apr 2006
Posts: 707
There are loads of posts on the forums for batteries and a lot of enthusiasm on the subject similar to polishing and hitches. Wet cell, gel cell (optima) or AGM (glass mat) all have pro's & con's. I searched them all when I needed to replace my pair. Gel - zero maintenance, no off gassing, higher initial cost, lower capacity. AGM - same as gel, but these batteries can be run right down to parade rest. Wet - requires checking/maintaining voltage and electrolyte. Cannot go < 50% or battery life will be shortened. I ended up witha pair of group 27 Interstates and have been very happy. I use a small LCD voltmeter to keep track of charge. Better then control panel state of charge meter. I plug trailer in once a month if Im not using it and keep a voltage vs % charge posted inside a cabinet door. I think this route gives the greatest bang for the buck with very little extra effort. If you want to never check electrolyte, go with the gel. If you will be doing a lot of boondocking and will run the batteries all the way down, check out the AGM. Personally, I'd stay away from the WM battery unless you're selling the trailer and advertising new battery.
__________________
WBCCI 24291
New England Unit
Metropolitan NY Unit
peegreen is offline   Reply With Quote
Old 06-19-2006, 08:12 PM   #8
Riviting Espresso
 
ColdEspresso's Avatar
 
1978 25' Caravanner
Boca Raton , Florida
Join Date: Mar 2006
Posts: 151
Images: 1
Send a message via AIM to ColdEspresso Send a message via Yahoo to ColdEspresso
Newbie Battery Question

Thanks for the great responses. I am also thinking of upgrading from the Univolt to an Intellipower Converter/Charger. I understand that it is quiet and more efficient than an older univolt. Do any of these batteries perform better with this charger or will the univolt be OK?


Thanks,

Mario
__________________
ColdEspresso is offline   Reply With Quote
Old 06-19-2006, 08:46 PM   #9
Rivet Master
 
GreatPumpkin's Avatar
 
Currently Looking...
Colville , Washington
Join Date: Mar 2006
Posts: 1,033
Images: 70
Quote:
Originally Posted by peegreen
.....Personally, I'd stay away from the WM battery unless you're selling the trailer and advertising new battery.
Curiosity - Why?
__________________
AIR 12256
Currently Looking
2001 Dodge Ram 1500
2001 Honda XR650R
Currently Looking...for an Avion Truck Camper (or a Classic Argosy MoHo)

"In regione caecorum rex est luscus." GP
GreatPumpkin is offline   Reply With Quote
Old 06-19-2006, 08:53 PM   #10
Rivet Master
 
peegreen's Avatar
 
1998 31' Excella 1000
South Berwick , Maine
Join Date: Apr 2006
Posts: 707
Quote:
Originally Posted by GreatPumpkin
Curiosity - Why?
Get what you pay for.
__________________
WBCCI 24291
New England Unit
Metropolitan NY Unit
peegreen is offline   Reply With Quote
Old 06-19-2006, 09:06 PM   #11
Rivet Master
 
GreatPumpkin's Avatar
 
Currently Looking...
Colville , Washington
Join Date: Mar 2006
Posts: 1,033
Images: 70
FYI....

EXIDE http://www.exide.com

"About Exide Technologies
Exide Technologies, with operations in 89 countries, is one of the world’s largest producers and recyclers of lead-acid batteries."

Manufactures most of the batteries out there:

Exide, Orbital, Stowaway, Nautilus, Champion, Trailblazer, GNB, Nascar Performance (official battery of Nascar)

Private label:

Wal-Mart, Sam's, Les Schwab, Napa, Schuck's, Big O Tires, Parts Plus, NTB, Tire Kingdom
__________________
AIR 12256
Currently Looking
2001 Dodge Ram 1500
2001 Honda XR650R
Currently Looking...for an Avion Truck Camper (or a Classic Argosy MoHo)

"In regione caecorum rex est luscus." GP
GreatPumpkin is offline   Reply With Quote
Old 06-19-2006, 09:08 PM   #12
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Quote:
Originally Posted by ColdEspresso
Thanks for the great responses. I am also thinking of upgrading from the Univolt to an Intellipower Converter/Charger. I understand that it is quiet and more efficient than an older univolt. Do any of these batteries perform better with this charger or will the univolt be OK?


Thanks,

Mario
Your comparing an older Univolt to a new Intellipower charger.

I might suggest that you also look at the new Univolts that Airstream has been using for several years, since they are trouble free.

Might think about why there are so many rebuilt Intellichargers on the market.

Also a noisey Univolt has no effect on it's ability to charge correctly.

Andy
__________________
Inland RV Center, In is offline   Reply With Quote
Old 06-19-2006, 09:40 PM   #13
Rivet Master
Commercial Member
 
lewster's Avatar
 
Vintage Kin Owner
Naples, FL , Hood River, OR
Join Date: Dec 2005
Posts: 7,282
FWIW,

I have replaced a bunch of Intellipower converters and a few Univolts, but only 1 WFCO converter. I was so impressed by it's operation that I pulled the new Parrallax that came with my CCD and replaced it with a new WFCO.

On the battery topic, 6V golf cart batteries have much thicker plates than any 12V battery and have a much higher charge/discharge cycle life. That's why they are used in golf carts! Run down and charged each day and last a few years. My personal choice........a pair of Lifeline 6V golf cart batteries in series.

*NOTE*
This post is for informational purposes only and reflects the opinions and experiences of the poster! Your results may vary!!!
__________________
Lew Farber...ABYC Certified Master Marine Electrician...RVIA Certified Master Tech ...AM Solar Authorized Installation Center...AIRSTREAM Solar & Electrical Specialist...Micro Air 'Easy Start' Sales and Installations
lewster is offline   Reply With Quote
Old 06-20-2006, 10:41 AM   #14
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Of course the 6 volt batterys have large plates than a 12 volt.

It's because it's 6 volt.

A 24 volt battery has smaller plates than a 12 battery.

That's the way it is.

6 volt batteries in an Airstream trailer offer "nothing" positive, but do add to the negative, in that a series setup has more disadvantages than a parallel setup.

Airstreaming use is far removed from a golf cart, which is far removed from aircraft, etc.

Andy

Andy
__________________

__________________
Inland RV Center, In 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
Battery Location uwe 1970-79 Tradewind 23 12-02-2015 08:41 AM
igniton switch and the mystery of the dead battery Curtis-79MH Airstream Motorhome Forums 3 10-25-2002 03:58 PM
Dumb question - 345LE - does the gennie charge the auto battery? williamhenshall General Motorhome Topics 6 08-26-2002 06:49 AM
Battery Dead/Power jack question jcanavera Jacks, Stabilizers, Lifting and Leveling 34 08-16-2002 02:51 PM
Newbie question Rog0525 Our Community 2 05-27-2002 02:30 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:03 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.