Reply
 
Thread Tools Display Modes
 
Old 09-02-2018, 05:02 PM   #1
Bronze Member
 
Join Date: Mar 2017
Location: Oklahoma
Posts: 25
Default Additional battery

Iím sure this topic has probably been fully discussed, but I canít figure out much on my phone. I have a 2006 190P Roadtrek and it only has one battery. My question is for those that have added a second battery to that little compartment in front of the rear passenger side tire. What size battery did you put in there and can you find the additional battery cables on the shelf? Is there anything else that has to be added if you install a second battery? I appreciate any help.
__________________

Thevon is offline   Reply With Quote
Old 09-02-2018, 05:53 PM   #2
BBQ
Platinum Member
 
Join Date: May 2016
Location: East
Posts: 2,484
Default

.

When you have multiple batteries,
you should always have them in the same size, same make (if possible), and same age.
__________________

__________________
BBQ is offline   Reply With Quote
Old 09-02-2018, 06:07 PM   #3
Bud
Platinum Member
 
Join Date: May 2016
Location: LA
Posts: 748
Default

Quote:
Originally Posted by Thevon View Post
Iím sure this topic has probably been fully discussed, but I canít figure out much on my phone. I have a 2006 190P Roadtrek and it only has one battery. My question is for those that have added a second battery to that little compartment in front of the rear passenger side tire. What size battery did you put in there and can you find the additional battery cables on the shelf? Is there anything else that has to be added if you install a second battery? I appreciate any help.

05/04 190 here that only had one battery as you described. The optional second battery was on a slide out. Finding and installing a slide out (good luck) I ruled out and purchased a battery tray.

https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1

I shortened a long section in the front to be able to slide the battery into the hole, into the tray. I bolted the tray to the bottom. Conveniently the tray is such that used a strap under the tray to secure the battery. It is Easier to access than the battery behind the wheel with the slide!

My understanding is that Roadtrek ran the battery cable to the other side of the van directly. I found it easier to run the battery cable from the existing battery to the other battery directly. I used 4 gauge jumper cables. One end already had a ready made terminal end, just removed the clamps.

The maximum size is a Group 27 with either location. A group 31 I found was a tiny bit too large. There are some 'group 27' agm batteries that won't fit, too large.

My installation was with 2 new Walmart group 27 deep cycle Marine batteries. It as been 2.4 years and all is well. I have a one stage charger, maybe one of the last Roadtrek installed. I only use a simple battery meter. With Experience I can fairly well predict what the meter will read the next morning based on what it reads with whatever I'm using the night before.

If you decide to run the battery cables from battery to battery, I can let you know the route I used under the van. Then you could improve on it. I did spend time trying to think it out with someone second guessing me.

Bud
Bud is offline   Reply With Quote
Old 09-02-2018, 07:10 PM   #4
Bronze Member
 
Join Date: Mar 2017
Location: Oklahoma
Posts: 25
Default

Thanks for the info Bud, since the batteries will be close together, I think I’ll just connect them together.
Thevon is offline   Reply With Quote
Old 09-02-2018, 07:38 PM   #5
Platinum Member
 
Join Date: Nov 2015
Location: CA
Posts: 1,569
Default

Quote:
Originally Posted by Thevon View Post
Thanks for the info Bud, since the batteries will be close together, I think Iíll just connect them together.
When batteries are paralleled, to equalize charge and discharge characteristics, it's best to have the power pick off point from one battery with the ground/chassis pick off common to the other battery.


A link I found useful when messing with batteries:

Battery Wiring
cruising7388 is offline   Reply With Quote
Old 09-02-2018, 07:56 PM   #6
Bud
Platinum Member
 
Join Date: May 2016
Location: LA
Posts: 748
Default

Quote:
Originally Posted by cruising7388 View Post
When batteries are paralleled, to equalize charge and discharge characteristics, it's best to have the power pick off point from one battery with the ground/chassis pick off common to the other battery.


A link I found useful when messing with batteries:

Battery Wiring
Thanks cruising, but when trying to get past the first whatever in the website my head starts hurting. Please assist, what should I do. Thanks.

Bud
Bud is offline   Reply With Quote
Old 09-02-2018, 07:57 PM   #7
Platinum Member
 
Join Date: Aug 2010
Location: Minnesota
Posts: 7,247
Default

The Roadtrek cabling on the units with one battery is terrible in the 190s of that vintage, and worse with 2 batteries, we had one wired that way. The battery cables ran all the way across to the other side of the van to binding post with #2 cable for each, and then back across the van to the inverter/charger with a single #4 cable. Really dumb setup.


The important thing with batteries in parallel is that each battery sees the same total cable length which is the length of the positive and negative for that battery added together. Shared cables don't count, and that is what cruising 7388's comment helps with. Our Roadtrek had nearly 6 feet of cable length difference from the factory.
booster is online now   Reply With Quote
Old 09-02-2018, 08:01 PM   #8
Bud
Platinum Member
 
Join Date: May 2016
Location: LA
Posts: 748
Default

Quote:
Originally Posted by Thevon View Post
Thanks for the info Bud, since the batteries will be close together, I think Iíll just connect them together.
I forgot to mention. The buckle that came with the strap that came with the tray broke. I tried several more with all braking. I used that kind of buckle backpacking 30 years, no problem. I suppose the g forces with bumps is just too much even with the strap as tight as possible. Went to this kind of strap:

https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1

Bud
Bud is offline   Reply With Quote
Old 09-02-2018, 08:08 PM   #9
Bud
Platinum Member
 
Join Date: May 2016
Location: LA
Posts: 748
Default

Quote:
Originally Posted by booster View Post
The Roadtrek cabling on the units with one battery is terrible in the 190s of that vintage, and worse with 2 batteries, we had one wired that way. The battery cables ran all the way across to the other side of the van to binding post with #2 cable for each, and then back across the van to the inverter/charger with a single #4 cable. Really dumb setup.

The important thing with batteries in parallel is that each battery sees the same total cable length which is the length of the positive and negative for that battery added together. Shared cables don't count, and that is what cruising 7388's comment helps with. Our Roadtrek had nearly 6 feet of cable length difference from the factory.
booster, my 05/04 has the cable going across the van and stays there with the converter and separate inverter in the same compartment. As I mentioned my understanding is that Roadtrek went directly from the optional battery to that compartment where I did not.

It needs to be really dumbed down for me. What should I do? Thanks.

Bud
Bud is offline   Reply With Quote
Old 09-02-2018, 08:17 PM   #10
Platinum Member
 
Join Date: Aug 2010
Location: Minnesota
Posts: 7,247
Default

Quote:
Originally Posted by Bud View Post
booster, my 05/04 has the cable going across the van and stays there with the converter and separate inverter in the same compartment. As I mentioned my understanding is that Roadtrek went directly from the optional battery to that compartment where I did not.

It needs to be really dumbed down for me. What should I do? Thanks.

Bud

Did you run two cables between the batteries one plus and one negative? Or did you ground the second battery to the chassis separately?
__________________

booster is online now   Reply With Quote
Reply

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


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 06:21 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.