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View Full Version : 80 series dual battery install


nakman
08-23-2005, 09:50 AM
This new forum needs an actual tech post, dang it. So yeah, slowly but surely I'm working on the daul battery setup. My main reasons are that I want to run all my aux. lights, inverter, fridge (someday.. :o ), and winch off of a second source, so the main battery is mainly used for starting, and keeping the CTF electronics of the truck running. Christo has a write-up on his site (http://www.sleeoffroad.com/technical/tz_dual_batteries.htm), and there are a couple good mud posts as well. Most of you know Drew Pollock from Moab, here (http://forum.ih8mud.com/showthread.php?t=36775) is his write-up, and RavenTai's write-up (http://forum.ih8mud.com/showthread.php?t=35679) is also good, though different. So to start, if you all could just please read those first, I'll join you again in about 6 hours. :D :confused:

nakman
08-23-2005, 10:23 AM
So what I need to figure out is what kind of solenoid to use, and do I want to have a bunch of switches? then how to wire it all up. I really think simpler is better, even if it means living with a couple fewer options. Here (http://www.bluesea.com/product.asp?Product_Id=22755&d_Id=7458&l1=7458&l2=) is a solenoid switch similar to Christo's marine switch, and I seem to run across the name Hellroaring (http://www.hellroaring.com/) a lot. That's about as far as I've got on this.. other than staring at Uncle Ben's setup a couple months ago.

Hulk
08-23-2005, 11:16 AM
I seem to recall Butch Baker having a really nice setup in his 40, that I was checking out at CM2004. You might see if you can e-mail him and get some pictures and details. He had a big marine switch so that he could run either battery alone or both at the same time.

nakman
08-29-2005, 07:17 PM
Alright so I've made my decision.. after about 8 hours of research over the past 2 weeks, some phone conversations, Mud PM's... I decided I'm going with a Hellroaring BIC 95300A (http://www.hellroaring.com/bic75300.htm) Also getting a remote module (http://www.hellroaring.com/remote.htm) that I'll wire to the dash area somehow. This is what Hellroaring describes as their "basic backup" setup, the best they currently offer and easiest to install. Also I'm getting a fusible link for the 2nd battery ground, for some added protection. :rolleyes:

All of my accessories will continue to run from the main battery, including the winch. That needs to be a deep cycle battery, I haven't completely decided yet but it probably won't be an Optima yellow top. The other battery will be left exclusively for starting backup, and it doesn't have to be a deep cycle. When I switch the remote deal then it'll get combined with the first battery for winching and emergency starting. So as I understand it, when combined my winch should supposedly be 3x more powerful. :D

And contrary to popular opinion, the two batteries do not need to be the same, or the same age, since they never "see each other." Another benefit is I can plop in my camper battery to the second tray, then let it reach full charge on the way to the camp site.. so theoretically have 3 batteries between the cruiser & camper, without harming the isolater system or either battery. Questions? discuss... :p

Where's a good place up north to get some monster battery cable wire?

Uncle Ben
08-29-2005, 09:05 PM
Alright so I've made my decision.. after about 8 hours of research over the past 2 weeks, some phone conversations, Mud PM's... I decided I'm going with a Hellroaring BIC 95300A (http://www.hellroaring.com/bic75300.htm) Also getting a remote module (http://www.hellroaring.com/remote.htm) that I'll wire to the dash area somehow. This is what Hellroaring describes as their "basic backup" setup, the best they currently offer and easiest to install. Also I'm getting a fusible link for the 2nd battery ground, for some added protection. :rolleyes:

All of my accessories will continue to run from the main battery, including the winch. That needs to be a deep cycle battery, I haven't completely decided yet but it probably won't be an Optima yellow top. The other battery will be left exclusively for starting backup, and it doesn't have to be a deep cycle. When I switch the remote deal then it'll get combined with the first battery for winching and emergency starting. So as I understand it, when combined my winch should supposedly be 3x more powerful. :D

And contrary to popular opinion, the two batteries do not need to be the same, or the same age, since they never "see each other." Another benefit is I can plop in my camper battery to the second tray, then let it reach full charge on the way to the camp site.. so theoretically have 3 batteries between the cruiser & camper, without harming the isolater system or either battery. Questions? discuss... :p

Where's a good place up north to get some monster battery cable wire?

General Air and Supply or any welding supply shop.

treerootCO
12-29-2008, 08:32 AM
Old thread revival....Is the cable from the welding supply shops a quality grade that is fine stranded cable?

Romer
12-29-2008, 08:54 AM
I got my cable at Napa, they cut it off a roll

treerootCO
12-29-2008, 10:41 AM
I got my cable at Napa, they cut it off a roll

Is yours a fine stranded cable or can you count the number of strands?

Romer
12-29-2008, 11:39 AM
I can't now that its installed, I do remember it having strands. I would call them and ask what theirs is like.

Been 30 months, and my memory isn't that good :D

sleeoffroad
12-29-2008, 11:49 AM
Just buy welding wire. Much easier to use.

nakman
12-29-2008, 12:03 PM
The stuff I got had several small strands to it, and is still working. 3.5 years and counting, apparently. :)

Uncle Ben
12-29-2008, 12:09 PM
Just buy welding wire. Much easier to use.

Agreed! #4 welding cable, some brass terminals, a large crimper and some welding or well grade heat shrink tubing will do you right!

Jacket
12-29-2008, 12:53 PM
Agreed! #4 welding cable, some brass terminals, a large crimper and some welding or well grade heat shrink tubing will do you right!

Do you have said crimper to loan out? I've got a National Luna system just dying to make its way into my truck....

nuclearlemon
12-29-2008, 01:21 PM
Old thread revival....Is the cable from the welding supply shops a quality grade that is fine stranded cable?

yep. that's what i run for battery cable in the 40. nice and flexible too, just keep in mind that the strands are easier to break also.

nakman
12-29-2008, 01:40 PM
Do you have said crimper to loan out? I've got a National Luna system just dying to make its way into my truck....

Matt, the crimper I used is called a bench vice. :hill:

treerootCO
12-29-2008, 01:55 PM
http://www.airgas.com/browse/product.aspx?Msg=RecID&recIds=80651&WT.svl=80651

Direct Wire And Cable 1/0 Red FLEX-A-PRENEŽ Welding Cable.

FYI on the National Luna kits......If you want to hook up a winch, none of the items in the kit can be used. :confused: Cable has to be 35mm˛.

Uncle Ben
12-29-2008, 02:03 PM
Do you have said crimper to loan out? I've got a National Luna system just dying to make its way into my truck....

I did! :rolleyes: I have lent my power crimpers to someone and I don't remember who....if that person reads this I would very much like to hear from you! ;) :cheers:

treerootCO
12-29-2008, 02:28 PM
I did! :rolleyes: I have lent my power crimpers to someone and I don't remember who....if that person reads this I would very much like to hear from you! ;) :cheers:

Is this what you have/had?

Uncle Ben
12-29-2008, 02:34 PM
Is this what you have/had?

No....but if you get it I'll borrow it! :thumb::thumb: ;)

Mine is/was similar to ......

http://www.delcity.net/images/photos/battcbls-access/990000_tab.jpg

Jacket
12-29-2008, 02:39 PM
FYI on the National Luna kits......If you want to hook up a winch, none of the items in the kit can be used. :confused: Cable has to be 35mm˛.

Yea - Paul suggested running the winch off the main battery if I stick with the parts in the kit, which is probably what I'll do.

treerootCO
12-29-2008, 02:39 PM
Yea - Paul suggested running the winch off the main battery if I stick with the parts in the kit, which is probably what I'll do.

Read page #10 --> Configuration #3 - Split change system with winch fitted (35mm˛ cable required) The cable included in the kit (page 2 is 16mm˛).

I am going to pick up one of these for the job as soon as RavenTai confims this is the correct one...

http://www.aircraftspruce.com/catalog/topages/swagingtool.php

Uncle Ben
12-29-2008, 02:41 PM
Yea - Paul suggested running the winch off the main battery if I stick with the parts in the kit, which is probably what I'll do.

I ran my winch of the second batt and it works well but it can kick the solenoid off if the load is high enough. I think I'll rewire to main batt before the St. Fuaw.

nuclearlemon
12-29-2008, 05:15 PM
I just fill with solder, insert hose while solder is still liquid and, if i really feel the need, nail it with a dull punch and a sledgehammer.

Uncle Ben
12-29-2008, 05:42 PM
I just fill with solder, insert hose while solder is still liquid and, if i really feel the need, nail it with a dull punch and a sledgehammer.

Soldering a high amp cable isn't creating a lead wire it is creating a fusable link!