Reply
 
Thread Tools Display Modes
Old 09-26-2013, 03:21 PM   #1
Makin' Life Simple
 
skisteveski's Avatar
 
Join Date: Sep 2013
Location: Fort CollinS, CO
Posts: 37
Charging 12v Deep Discharge Battery

I have an A122BH and we love going camping with it. When we are dry camping the single battery after about 3 days begins to lose "ummph". Has anyone hooked another same "deep discharge" battery in parallel and been fine for five days or so? We're pretty good a power management (LED lights for instance) and thermostat set at 50 deg during the night to keep the heater motor from running too much.
On this first experience of multiple days of camping I backed my Honda Pilot and hooked up the wire harness and idled the car for about an hour to get some charge back in the battery. Is that ok to do?
__________________

__________________
skisteveski is offline   Reply With Quote
Old 09-26-2013, 03:32 PM   #2
Senior Member
 
KMP44's Avatar
 
Join Date: Apr 2013
Location: Central New York
Posts: 1,025
We put a second 12v battery on our Roo. Went 4+ days with no issue - just being careful on what we used. May have been able to go longer, but our fridge has a cooling fan that was running almost constantly that week. The key is you need 2 batteries of the exact same type and age to work most efficiently.

There is lots of info and opnion here and on other sites on 6V batteries vs 12V, multiple batteries, permanent or portable solar panels of many sizes, and generators for dry camping.

If your rig is fairly new, see if the dealer has another matching battery. It will be your cheapest and quickest way to double your capacity. Just make sure you have a diagram of how to correctly connect them. The dealer will probably also make you up a pair of wires for the connections for a few extra bucks.

As for using the tow vehicle in a pinch, I think many of us have done that in a pinch. Works good when you don't have any other power source.

Kevin
__________________

__________________


2017 F-250
2013 Rockwood Roo 23 IKSS
KMP44 is offline   Reply With Quote
Old 09-26-2013, 03:32 PM   #3
Mostly Harmless
 
thehamguy1's Avatar
 
Join Date: Aug 2011
Location: Central Iowa
Posts: 835
Several of us have put dual batteries in our aframes, and they do extend your camping range well. 5 days on a full charge is routine for me with my dual Group 31 batteries. They're not pure deep cycle batteries, they're sort of combo batteries--thicker plates than standard car batteries, but not built like true deep cycle batts either. For me, cost was the issue that got me to buy the hybrid type. I figured if I have to replace them every X years anyway, then the hybrids would work OK for me.

+1 on the need to have exactly matching type, capacity, and age batteries in a dual setup.
__________________
It's never too late to have a happy childhood!
Lee, WU0V, and Courtenay, N0ZDT
2011 Rockwood A128
2000 Silverado 1500 pickup
60W solar system
2000W inverter generator
thehamguy1 is offline   Reply With Quote
Old 09-26-2013, 03:44 PM   #4
Makin' Life Simple
 
skisteveski's Avatar
 
Join Date: Sep 2013
Location: Fort CollinS, CO
Posts: 37
Quote:
Originally Posted by thehamguy1 View Post
Several of us have put dual batteries in our aframes, and they do extend your camping range well. 5 days on a full charge is routine for me with my dual Group 31 batteries. They're not pure deep cycle batteries, they're sort of combo batteries--thicker plates than standard car batteries, but not built like true deep cycle batts either. For me, cost was the issue that got me to buy the hybrid type. I figured if I have to replace them every X years anyway, then the hybrids would work OK for me.

+1 on the need to have exactly matching type, capacity, and age batteries in a dual setup.
Thanks, HamGuy! It's all brand new so I'll pick up another Interstate like the one I have. What is Group 31?
Also what kind of battery box?
__________________
skisteveski is offline   Reply With Quote
Old 09-26-2013, 03:54 PM   #5
Mostly Harmless
 
thehamguy1's Avatar
 
Join Date: Aug 2011
Location: Central Iowa
Posts: 835
Group 31 is a size category. They're larger than the Group 24 batteries typically put on our aftrames. They're also heavier; mine are 60# each. Group 27 batteries are the size between. I think the 24s and 27s will both fit the same battery box, just pick up another one like you have and rig up some kind of mount for it. The Group 31 is too big for that box, so I had to buy two boxes in addition to the batteries and the new mounting system.

I bought 3 36" perforated angle irons from Home Depot to make the battery box rack, which sits on top of the tongue in the same location as the original box, it just sits across both arms of the frame there. One of the angle irons was cut to make the cross pieces; the other two were cut just long enough to accommodate the two batteries in their boxes. It's a rectangle that is bolted to the "A" part of the frame with self-tapping screws. I sprayed it black and it looks like it was always there.
__________________
It's never too late to have a happy childhood!
Lee, WU0V, and Courtenay, N0ZDT
2011 Rockwood A128
2000 Silverado 1500 pickup
60W solar system
2000W inverter generator
thehamguy1 is offline   Reply With Quote
Old 09-26-2013, 06:53 PM   #6
Junior Member
 
Join Date: Jul 2013
Posts: 2
I found that two 6V golf cart batteries (deep cycle) fit perfectly in the standard battery tray area with no modification needed - except that there's no room for battery boxes if there even are boxes for batteries that tall. I see no need for battery boxes other than for hiding the obvious. Although I could have drilled some holes and used standard battery holddowns, I use giant sized zip ties do that job.

Now is also the time of year that Costco and other stores clear out their deep cycle batteries.
__________________
2014 Rockwood A122S
2000 GMC 2500
Derodeo is offline   Reply With Quote
Old 09-26-2013, 07:18 PM   #7
Senior Member
 
Join Date: Mar 2013
Location: Houston, TX
Posts: 1,728
Quote:
Originally Posted by Derodeo View Post
Now is also the time of year that Costco and other stores clear out their deep cycle batteries.
Just be careful and check the manufacturing date so you don't get the leftover batteries that went dead on the shelf.
__________________
Tom

2012 Rockwood A122S
2008 Toyota Tundra Double Cab 4X4

Former owner of a 2002 Coleman Niagara GTE
Pooneil is offline   Reply With Quote
Old 09-26-2013, 07:23 PM   #8
Senior Member
 
1A Camper's Avatar
 
Join Date: Jul 2013
Location: Denver, CO
Posts: 371
I have 2 group 27. THe group 24 battery case had to be changed out as it was too small. Also could not use the mounting frame for the group 27 either, had to make new frame. I use my battery one at a time. I add a switch on each. Only been out 2 day at a time. and 1 battery is doing fine for that.
__________________
Steve and Adele
2014 Flagstaff T12RBST
2005 Toyota 4runner 4x4
1A Camper is offline   Reply With Quote
Old 09-28-2013, 03:23 PM   #9
Makin' Life Simple
 
skisteveski's Avatar
 
Join Date: Sep 2013
Location: Fort CollinS, CO
Posts: 37
Quote:
Originally Posted by 1A Camper View Post
I have 2 group 27. THe group 24 battery case had to be changed out as it was too small. Also could not use the mounting frame for the group 27 either, had to make new frame. I use my battery one at a time. I add a switch on each. Only been out 2 day at a time. and 1 battery is doing fine for that.

Do you use a voltage meter to tell when to switch? If so what reading "triggers"the switch to the fully charged one. I have two group 24's, and they're 82lbs combined on the tongue.
__________________
skisteveski is offline   Reply With Quote
Old 09-28-2013, 04:04 PM   #10
Senior Member
 
Join Date: Jun 2011
Location: Milford, MA
Posts: 441
Skisteveski. Sent you a private message...
__________________

__________________
2011 A-122
rawlus is offline   Reply With Quote
Reply

Tags
battery, charging

Thread Tools
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




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 01:31 PM.