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01-20-2008, 07:30 PM
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#1
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2 Rivet Member
2007 22' International CCD
Tunbridge
, Vermont
Join Date: Jan 2008
Posts: 23
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Adding 2nd Battery--Any problems?
I just bought a new 22-ft International, primarily for myself on multiple-day flyfishing trips and week-long shooting competition trips. My former 32-ft Excella had two batteries but the new rig has one.
Has anybody experienced building a special box to add a second battery in parallel with the factory-supplied battery? My new unit does have the solar charging system and I do carry a 1000-watt semi-silent Honda generator for recharging, but a single battery doesn't last long on a week-long trip in the hinterlands.
Would there be any problems with the Airstream charging system? If wired in parallel, it wouldn't it be just iike having ONE battery with larger capacity?
Pete in Vermont
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01-20-2008, 07:55 PM
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#2
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Retired.
Currently Looking...
.
, At Large
Join Date: Jun 2003
Posts: 21,276
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two smaller batteries would be like one bigger one. Depending on how much sunlight you are going to be involved with, it may be bettr to get the largest AGM battery that will fit in the tray, and a good-sized solar panel. Cost would probably be similar if you have someone else do the work, and you wouldn't have to worry about containing and venting the second battery.
(BTW, AGM batteries don't vent hydrogen like a wet acid battery).
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
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01-20-2008, 09:15 PM
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#3
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3 Rivet Member
1965 22' Safari
Currently Looking...
Orinda
, California
Join Date: Dec 2007
Posts: 221
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2 different (different age) batteries are not recommended to be wired together, because having different voltage the worse will pull the better one down.
Saying that I never had any problem for running 2 different batteries while in constant use of discharging/charging. In the past when I had trailer in the storage 1/2 from the lake, I put older motorcycle battery in it just for the brakes and water pump on those short trips from the site to the storage.
Than driving SUV for weekends I was bringing big battery charged at home, that I put under the trailer and hooked up to the small battery with alligator clips. On longer stays, I was taking the big battery into SUV when we drove somewhere and was charging it there with cigarette plug adapter.
Worked as a charm. Never had a need for generator at those times. Even at 110F spending few hours in the water made AC unnecessary.
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01-20-2008, 09:40 PM
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#4
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Rivet Master
1986 25' Sovereign
Southern Middle
, Tennessee
Join Date: Mar 2002
Posts: 3,319
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Pete,
I'm contemplating just such an addition to my '86 Sovereign. I have a metal box sitting between the tongue frame rails now for tools, ramps, etc. I plan on having it removed and a deeper as well as a slightly taller box welded in. It will be large enough to house two Trojan 27TMH 12 volt batteries. Since the battery lug on the positive post has cracked, I intend to replace both cables after the box is built and welded in. This probably won't be done until the middle of the summer. Like you, I have solar on the roof and a generator should I need it. It would be nice to have that extra cushion of battery power since the trailer is without shore power the month of April and for several months starting in September.
__________________
Craig
AIR #0078
'01 2500hd ext. cab, 8.1 litre gas, 5 sp. Allison auto
3.73 rear end
Mag-Hytec rear diff cover
Amsoil Dual by-pass oil filtration system
Amsoil synthetics all around
265 watt AM Solar, Inc. system
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01-20-2008, 09:51 PM
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#5
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4 Rivet Member
2002 22' International CCD
San Luis Obispo
, California
Join Date: May 2005
Posts: 418
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Pete,
I've done this very thing to our 22' CCD. I had a new battery tray fabricated at a local muffler shop which holds two group 24 batteries. I give credit for the idea to rseagle, who has posted often on this forum and has some excellent pictures of his set up. Search the following threads, although there are others discussing the addition of batteries:
Upgrade to 2 x 6v Batteries on 2005 Int'l 22'
and
2nd Battery?
Hope this is helpful.
__________________
Wayne
2002 22' CCD
2008 Dodge Ram 1500 5.7L Hemi
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01-23-2008, 11:18 PM
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#6
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2 Rivet Member
2007 22' International CCD
Tunbridge
, Vermont
Join Date: Jan 2008
Posts: 23
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Thanks for the comments folks. I think the way to go is to fabricate a bracket, weld it on and install two AGM batteries. During a few years with a 20 ft "other brand" trailer i had one battery and it was always running down in the middle of a rainstorm or other time when going outside to rig the generator was difficult. Nearly ALL my use is boon-docking, so dependable battery life is important.
HAS ANYBODY also tried upgrading the two 20# propane tanks on these smaller AS models to 30# bottles? Is there room and what about the affect on the tongue weight, assuming I'd also go with two batteries?
__________________
Pete in Vermont
AIR 26504
WBCCI 2980
2007 22 ft International CCD
2007 Tahoe 4X4
Hensley Arrow
[ prior AS: 1986 Excella 32 ft ]
Whoever said "Money can't buy happiness" never owned a custom made bamboo fly rod.
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01-24-2008, 12:28 AM
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#7
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3 Rivet Member
1965 22' Safari
Currently Looking...
Orinda
, California
Join Date: Dec 2007
Posts: 221
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I had originally 30 lb propane tanks on my Safari, but I am going with 20 lb now. You might find a space for bigger tanks and probably batteries as well on your tongue and you can control the tongue weight by moving heavy items to the rear, but having most of the weight away from the axles will make the set more prone to proportioning (?) and fishtailing.
Hard decision.
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01-24-2008, 02:38 AM
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#8
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Rivet Master
2004 22' International CCD
Spotsylvania
, Virginia
Join Date: Mar 2004
Posts: 663
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Deka 12vdc 212 Ah Deep Cycle
Pete,
Here is what I did for my 22 footer.
__________________
Bob
---------------
"THE BAUXITE BUNGALOW"
2004 22' CCD
1997 F-150
TAC VA-12
AIR# 4749
ex WBCCI# 1430
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01-24-2008, 03:20 AM
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#9
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1 Rivet Member
2005 28' International CCD
Stanwood
, WA
Join Date: Oct 2004
Posts: 12
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Yes, one Bat would not last the night in our 05 28''CCD. We simply strapped a battery box over the metal box with a Group 31 yellow top Optima ( already had the battery) and it just fit behind the propane locker. We also added a 1000 W Yahama lightweight generator (converted to propane since we tow with a diesel Excursion. This gives us some AC when we need it and charges the batteries. We don't reall have enough battery power to use a functional inverter. Our old 1976 25' had two 4D AGM's over the wheel well and a 1500W inverter charger.
Our new system worksfine, just doesn't support the AC, which iswn't too important for us WA/MT travelers.
BillM
__________________
Bill M
05' CCD 28 foot# 2905
04 Excursion Dsl.
7 kitties
Stanwood WA & Whitefish Mt
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