Reply
 
Thread Tools Display Modes
Old 09-28-2013, 02:23 PM   #1
Junior Member
 
Join Date: Sep 2013
Posts: 18
want to add a second battery.

hello folks,finally got my no 12 volt problem fixed,it was a fuse.thnx for all your help.now,i currently have 1 battery in my 16' rockwood pop-up.i want to add a second one.is it ok to just run a jumperwire from each battery terminal?can i charge both by connecting my generator to one battery?i have 2 seleltor switches on my boat,do i need the same hookup?thnx marcus
__________________

__________________
marcus220 is offline   Reply With Quote
Old 09-28-2013, 02:24 PM   #2
Senior Member
 
Jjs2000z's Avatar
 
Join Date: Jul 2013
Location: Southern California
Posts: 231
I would suggesting adding two 6 volt batteries
__________________

__________________
2014 stealth 2714
Jjs2000z is offline   Reply With Quote
Old 09-28-2013, 02:49 PM   #3
Senior Member
 
Witch Doctor's Avatar
 
Join Date: Feb 2012
Location: Clarksville Va.
Posts: 7,632
Quote:
Originally Posted by marcus220 View Post
hello folks,finally got my no 12 volt problem fixed,it was a fuse.thnx for all your help.now,i currently have 1 battery in my 16' rockwood pop-up.i want to add a second one.is it ok to just run a jumperwire from each battery terminal?can i charge both by connecting my generator to one battery?i have 2 seleltor switches on my boat,do i need the same hookup?thnx marcus
The real answer is yes if they are the same. The best way is to have 2 of the exact battery's and age. Just go plus to plus and minus to minus. The other way you mention would be a selector switch A&B or both. That way you could use it to charge either one. But if they are the same age and AH there is really no use doing that. I have 2 12 volt on one disconnect. They are both either off, on or charging. Make sure your wire is big enough so you don't have a voltage loss. Bigger is better less resistance. But I been wrong before so be warned. We got some good batteries guru's on line Barry is one of them, also wiretim......
__________________
Rockwood #8289 WS 2012
F250 6.0 / Husky 16k
With 4 point leveling system
Witch Doctor is offline   Reply With Quote
Old 09-28-2013, 02:50 PM   #4
Senior Member
 
BigTJohn's Avatar
 
Join Date: Oct 2011
Location: Palm Coast FL
Posts: 746
2 =- 6 vdc batts will cost you more than adding the 1 - 12 vdc. How old is the batt you currently have? If it is more than 6-9 months older than your new (or to be purchased batt) then the 2 - 6 vdc golf cart type batts would make sense. You can charge 2 - 12 vdc from a single input, the selector type sw as on your boat does have its advantages. Try not to mix old and new batt, as the old one will keep trying to "charge itself" via the new, stronger one. Search this forum for more detailed info and hookup tips.
__________________
Brenda and John
'14 Ram 3500 MCSB 6.7L HO PullRite 16K S/G, Grey Columbus 320RS Camped '14 - 146 days/'15 - 196 days
USN-EOD(Ret), Master Chief, 30 yrs,
Master Blaster of the Navy
BigTJohn is offline   Reply With Quote
Old 09-28-2013, 02:58 PM   #5
Moderator Emeritus
 
Triguy's Avatar
 
Join Date: Aug 2010
Location: Southeast Wisconsin
Posts: 6,950
Quote:
Originally Posted by marcus220 View Post
hello folks,finally got my no 12 volt problem fixed,it was a fuse.thnx for all your help.now,i currently have 1 battery in my 16' rockwood pop-up.i want to add a second one.is it ok to just run a jumperwire from each battery terminal?can i charge both by connecting my generator to one battery?i have 2 seleltor switches on my boat,do i need the same hookup?thnx marcus
You have lots of option.

You can add a new 12 volt in parallel with your original IF the two batteries are the same type (flooded, AGM, etc), same size, and same age. You cannot mix batteries of different types and its not recommended you mix batteries of different sizes or age.

If you have two different 12 volt batteries, you can use them separately (not connected in parallel) and various battery disconnects will allow you to switch manually between them.

If you want to perfectly match them, you will need to buy two new batteries and can then connect appropriately (two 12-volts in parallel or two 6 volt batteries in series).
__________________
Scott
DW, 3 Kids and our Goldens

2012 Shamrock 233S
2008 Toyota Sequoia 5.7L 4WD
Triguy is offline   Reply With Quote
Old 09-28-2013, 05:19 PM   #6
Moderators' Assistant
 
bikendan's Avatar
 
Join Date: Jan 2007
Location: Camano Island, Washington
Posts: 13,299
this website should be required reading for any new RV owner:

The 12volt Side of Life (Part 1)

there are Part I and II.
__________________
Dan-Retired Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 4x4 3.5 Ecoboost w/Max Tow Package
Equalizer WDH and Prodigy BC
bikendan is online now   Reply With Quote
Old 09-28-2013, 06:51 PM   #7
Junior Member
 
Join Date: Sep 2013
Posts: 18
Quote:
Originally Posted by bikendan View Post
this website should be required reading for any new RV owner:

The 12volt Side of Life (Part 1)

there are Part I and II.
yhnx bike for that link,that was very informative.
__________________
marcus220 is offline   Reply With Quote
Old 09-28-2013, 06:57 PM   #8
Junior Member
 
Join Date: Sep 2013
Posts: 18
i decided to go with 1 deep cycle group 27.did'nt really have room for 2 batteries.i do carry a new spare however.i have a 200 eu honda generator with a battery charger.am i better off charging the battery using the generator and charger?or use the alligator clips from my generator to the battery?also,should i disconnect the trailer leads off the battery before i charge the battery? thnx again. marcus
__________________
marcus220 is offline   Reply With Quote
Old 09-28-2013, 07:27 PM   #9
Moderators' Assistant
 
bikendan's Avatar
 
Join Date: Jan 2007
Location: Camano Island, Washington
Posts: 13,299
use the trailer's converter. just plug the shore cord, with a 30-20 amp adapter, into the outlet on the Honda.
way easier than using a separate battery charger and WAY more efficient than using the 12v battery charging cables supplied with the Honda.
__________________
Dan-Retired Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 4x4 3.5 Ecoboost w/Max Tow Package
Equalizer WDH and Prodigy BC
bikendan is online now   Reply With Quote
Old 09-28-2013, 08:18 PM   #10
Junior Member
 
Join Date: Sep 2013
Posts: 18
Quote:
Originally Posted by bikendan View Post
use the trailer's converter. just plug the shore cord, with a 30-20 amp adapter, into the outlet on the Honda.
way easier than using a separate battery charger and WAY more efficient than using the 12v battery charging cables supplied with the Honda.
what rate of charge is that?i just read the converters rate of charge does'nt compete with the charging input of a charger.PLEASE READ THIS.As stated above, the converter in your RV really isn't designed to be a decent battery charger. It's main purpose in life is to provide 12 volt power for your rig while you are plugged in to an A/C outlet. Since the converter is designed to not exceed a voltage of about 13.5 volts, it will never fully charge your batteries. Also, after it has succeeded in partially charging your batteries, it will then commence to boil off electrolyte, as the "float" voltage is too high (should be about 13.2 volts max.). If you plug your rig into A/C power for months at a time, you MUST keep a close eye on your battery's electrolyte level. It is very common for a converter to boil a battery dry in a month or two. Don't let it happen to you! If you must live with your converter, it is a big help if you unplug it or switch it off when the rig is in storage and attached to A/C power. Just run the converter overnight once a month or so and it will be much easier on your batteries. Another significant disadvantage to the converter is that most units aren't capable of delivering their rated amperage to the batteries to charge them. Older converters will only manage about 10 or 15 amps and will put out significantly less when powered by a generator.
__________________

__________________
marcus220 is offline   Reply With Quote
Reply

Tags
battery

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 07:14 PM.