Dual Battery charging times.

Submitted: Thursday, May 21, 2009 at 16:45
ThreadID: 69034 Views:2138 Replies:3 FollowUps:2
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Hi everyone just joined this forum and looks great. I have a couple questions about dual battery systems. I am just new to it and have some stuff ordered to install one next week. I will be putting it in the back of a Rodeo dual cab 4x4 Diesel. The 2nd battery is an AGM 100AH using an ABR 120A isolator. I plan on using 6 B&S (13.5mm) cable. Onto the questions.. 1.I understand I should use a fuse on each battery but am unsure as to what ampage fuse to use?
2. Some wiring diagrams say to run each negative battery terminal to the chasis as a ground and some say to run the neg main battery to the neg aux battery terminal...I am a bit confused as to which path to take.
3. What sort of vehicle running time would it take to recharge the battery from say 50%?
4.Is it possible to run more than 1 auxillary battery like this?

Thanks in advance for the help.
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Reply By: muzzgit - Thursday, May 21, 2009 at 19:02

Thursday, May 21, 2009 at 19:02
1. Ask ABR
3. I have found anything less than 6 hours driving does not get me a satisfactory charge.


AnswerID: 365995

Reply By: Maîneÿ . . .- Thursday, May 21, 2009 at 20:26

Thursday, May 21, 2009 at 20:26
1. Wondering why you have not asked ABR ?
2. To the Neg (-) battery terminal OR it's same earth point.
3. Depends on various other things
4. Yes ?

I'm sure the cable supplier would have mentioned that you would get far better charging capability simply by increasing the cable size from 6 B&S to 4 or 3 B&S (I use 2 B&S)

Maîneÿ . . .
AnswerID: 366011

Reply By: Lowndsey - Friday, May 22, 2009 at 14:38

Friday, May 22, 2009 at 14:38
Thanks for the replies. I never really knew whether or not ABR had a website as i bought the isolator from ebay rather than directly from them and browsing other dual battery threads on this forum their are stacks of people using similar same setups with this isolator and I assumed to answer this question would be a no brainer for them.

As for the wiring I have no bought it yet so have not spoken to any dealer and all the threads i have read on here recommend 6 B&s.
AnswerID: 366175

Follow Up By: Member - Norm C (QLD) - Friday, May 22, 2009 at 15:24

Friday, May 22, 2009 at 15:24
Derek from ABR is an advertiser and regular poster on this site. You will find him to be pretty helpful.

ABR Sidewinder Web site

FollowupID: 633892

Follow Up By: beelzebug - Friday, May 22, 2009 at 15:31

Friday, May 22, 2009 at 15:31

I have an ABR setup in my D40 Navara, which is the same as you intend. I used an ABR Flyer on the ute's rear wheel arch (in tub)
Call Derek, as he has helped me through a few (to me) difficult questions.
FollowupID: 633894

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