Reply
 
Thread Tools Search this Thread Display Modes
 
Old 11-06-2015, 11:00 AM   #1
3 Rivet Member
 
Ed Brownfield's Avatar
 
2015 28' Flying Cloud
Charlottesville , Virginia
Join Date: Dec 2007
Posts: 106
Battery Charger

Nothing seems to be simple these days. I am a new AS owner (2015 FC) I understand from reading the post that if I store the AS for long periods like I am getting ready to do (six months) that I should remove the batteries and keep them charged. OK, here are my questions what battery charge should I purchase. I called Battery Tender and the person on the phone said that she needed to know whether the two batteries were wired in parallel or in series. She said that she also needed to know the size and AMP hours of each battery before she could recommend which battery tender (charger) to purchase. I do not know the answer to either of these wiring questions or the battery size question. I have a 2015 Flying Cloud 28 ft. with two batteries. I want to purchase a tender that I can keep plugged in my trailer is stored away from my home. I do not intend to keep the trailer plugged in to shore power I plan to keep the battery tender plugged in and hooked to the batteries. Is there a charger that I can keep attached to both batteries or do I need to purchase two chargers? Your knowledge and help are greatly appreciated!!!!
__________________

__________________
Bald Eagle
28 Ft. Flying Cloud
2015 GMC Diesel
Charlottesville, VA
Ed Brownfield is offline   Reply With Quote
Old 11-06-2015, 11:40 AM   #2
Rivet Master
 
lsbrodsky's Avatar
 
2012 25' FB International
Trent Woods , North Carolina
Join Date: May 2013
Posts: 1,687
Your wishes are a bit confusing because you stated that you do not intend to stay plugged in to shorepower. Your battery tender needs AC power so it will have to be plugged in to some shorepower, but maybe I missed your point.
Frankly any tender sold by Battery Tender will work for you if your batteries are fully charged before you connect the tender. They have higher amperage chargers that will also charge a battery but if you want to just maintain an already fully charged battery, any of their smaller ones will work. Having said that, I dislike Battery Tender because one shorted out on me just sitting there doing its maintainer thing. After that I moved to CTEK and have been happy.
If your trailer is outside, you can just use a small solar panel. I do that with my truck stored outside.
One small catch is that your batteries are in parallel so any charger or tender is not going to perfectly charge both batteries. But if both are the same age and have seen the same service, this is not a big deal.
Larry
__________________

__________________
lsbrodsky is offline   Reply With Quote
Old 11-06-2015, 11:41 AM   #3
3 Rivet Member
 
Burnside Bob's Avatar
 
2009 25' FB Flying Cloud
1973 31' Sovereign
Mt Angel , Oregon
Join Date: Jul 2010
Posts: 199
You should have two 12V group 24 Interstate SRM 24 deep cycle Marine/RV batteries. They will be wired parallel and each is rated at 84 Amp/hours for 168 Amp/hours total.

You might check to make sure this is what you have, but I believe these are the standard factory issue.

Here's the specs for the Interstate SRM 24 from a battery retailer:

Interstate SRM-24 Deep Cycle Marine & RV Battery 550 CCA
__________________
Best, Burnside

"To err is human, to air is devine."
Burnside Bob is offline   Reply With Quote
Old 11-07-2015, 08:49 AM   #4
2 Rivet Member
 
2013 25' Flying Cloud
Middleton , Idaho
Join Date: Nov 2012
Posts: 80
When my trailer is charged up, I use the Battery Tender 1.25 amp model to maintain it during storage. The batteries stay on the trailer (all winter), with the Battery Tender pigtail hard wired to them. I have the original factory Interstate group 24 batteries, wired in parallel. I have used the smaller Battery Tenders on boats and motorcycles for years. That said, there is probably better technology out there now, like CTEK that was mentioned in an earlier post, which I would try if I bought another one.
__________________
Trailbob is offline   Reply With Quote
Old 11-07-2015, 09:18 AM   #5
Rivet Master
 
Wayne&Sam's Avatar
 
2014 25' Flying Cloud
Cuddebackville , New York
Join Date: May 2007
Posts: 3,101
Images: 21
I use a BatteryMinder model 12248. I leave the batteries in the trailer, put in storage mode. I leave it that way all the time it's in storage. I put a pigtail connector on the batteries so I can just plug the charger in as needed.
__________________
2014 25' Flying Cloud Rear Twin
2012 Dodge Durango Hemi/AWD
Wayne&Sam is offline   Reply With Quote
Old 11-08-2015, 08:45 PM   #6
4 Rivet Member
 
sgschwend's Avatar
 
1986 25' Sovereign
2008 F350, 6.4L diesel , Oak Harbor, WA
Join Date: Sep 2015
Posts: 438
Images: 11
Ditto with Wayne&Sam, Battery Minder 12248, in my case full time use, no other power supply, perfectly quiet.
__________________
sgschwend is offline   Reply With Quote
Old 11-09-2015, 07:35 AM   #7
2 Rivet Member
 
2016 27' Eddie Bauer
Wausau , Wisconsin
Join Date: Sep 2015
Posts: 20
So if they are in parallel you only hook up one battery?
__________________
Chrisy is offline   Reply With Quote
Old 11-09-2015, 09:01 AM   #8
2 Rivet Member
 
2011 27' FB Classic
Camp Hill , Pennsylvania
Join Date: Jul 2015
Posts: 75
If there is power where the trailer is stored why can't he just leave it plugged in and use the built in AS charger to maintain the batteries. No hassle at all.
__________________
LyleRussell is offline   Reply With Quote
Old 11-09-2015, 09:12 AM   #9
Rivet Master

 
1986 31' Sovereign
Miami , Florida
Join Date: Feb 2004
Posts: 1,653
Blog Entries: 13
Because the converter Airstream uses is a dinosaur. A single stage unit that will overcharge the batteries, ruining them in short order.

Mike
__________________
Old (usually dirty) Nissan Titan
Old (enhanced with "male pattern baldness") Sovereign
Young, lovely bride
Goofy dog, dismissive cat
n2916s is offline   Reply With Quote
Old 11-09-2015, 09:48 PM   #10
3 Rivet Member
 
Ed Brownfield's Avatar
 
2015 28' Flying Cloud
Charlottesville , Virginia
Join Date: Dec 2007
Posts: 106
Battery Tender

Quote:
Originally Posted by Trailbob View Post
When my trailer is charged up, I use the Battery Tender 1.25 amp model to maintain it during storage. The batteries stay on the trailer (all winter), with the Battery Tender pigtail hard wired to them. I have the original factory Interstate group 24 batteries, wired in parallel. I have used the smaller Battery Tenders on boats and motorcycles for years. That said, there is probably better technology out there now, like CTEK that was mentioned in an earlier post, which I would try if I bought another one.
Trailbob, thanks for your good information! I bought the Battery Tender Plus 12 V - 1.25 amp today! I can't leave the batteries in my tailer because my trailer is stored in a commercial storage facility without access to electricity. I plan to bring both batteries home for the winter and keep them attached to one or two battery tenders. When i bought the Battery Tender the sales person at O"Reilly's who sold it to me thought that I probably needed two Battery Tenders one for each battery. Is that correct or is there a way to connect both batteries together and use one Battery Tender? Is there a problem leaving the battery attached to the Battery Tender for extended period of time; say three or four months? The package says that it "automatically switches from full charge to float automatically". Many thanks for sharing your wisdom
__________________
Bald Eagle
28 Ft. Flying Cloud
2015 GMC Diesel
Charlottesville, VA
Ed Brownfield is offline   Reply With Quote
Old 11-09-2015, 09:56 PM   #11
Rivet Master

 
1986 31' Sovereign
Miami , Florida
Join Date: Feb 2004
Posts: 1,653
Blog Entries: 13
Just swap the battery tender between the two every couple of weeks and you will be fine.

Mike
__________________

__________________
Old (usually dirty) Nissan Titan
Old (enhanced with "male pattern baldness") Sovereign
Young, lovely bride
Goofy dog, dismissive cat
n2916s 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
Converter/Charger vs. Inverter/Charger moosetags Batteries, Univolts, Converters & Inverters 5 11-22-2013 11:21 PM
Question about wiring new battery charger on the battery side of the latching relay. BTUs4You General Repair Forum 3 07-27-2012 01:36 PM
Best battery charger for the money? Andy R Electrical - Systems, Generators, Batteries & Solar 27 10-01-2007 08:46 PM
battery charger ALANSD Batteries, Univolts, Converters & Inverters 8 09-16-2007 06:52 PM
Adding charger where no charger has gone before Jabba Electrical - Systems, Generators, Batteries & Solar 4 03-08-2003 10:39 AM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:43 AM.


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.