Dual battery question
Submitted: Wednesday, May 19, 2010 at 16:26
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rare
Hi I have a 100 series cruiser which has 2 cranking batterires and an auxillary which is manage by a RedArc (Excuse spelling) which obviously isolates the cranking batteries from the Auxilary. My question is I,m looking to put a second Auxillary Battery in so can I still use the same isolator switch. I know the two auxillaries will not be isolated from each other if I do this.
Appreciate comments
Reply By: ABR - SIDEWINDER - Wednesday, May 19, 2010 at 17:24
Wednesday, May 19, 2010 at 17:24
Perfect, no problem, just use heavy cable and fuses / breakers as I assume the 4th battery will be in the rear.
Regards
Derek from ABR
AnswerID:
417283
Follow Up By: Mark - Wednesday, May 19, 2010 at 20:26
Wednesday, May 19, 2010 at 20:26
Hi Derek,
You used to have an isolator that allowed 3 batts to be charged independently but i can't see it on your website, it had 3 post for each of the batteries, do you still sell these?. I have two batts in the 4wd & will soon be
buying a camper trailer with its own deep cycle so was looking for a 3-way isolator.
Cheers
Mark
FollowupID:
687401
Follow Up By: ABR - SIDEWINDER - Wednesday, May 19, 2010 at 21:10
Wednesday, May 19, 2010 at 21:10
Hi Mark
We no longer deal with that factory sorry, no longer available.
There is a similar device from LEAB if that is what you want.
LEAB-supplier
Regards
Derek
FollowupID:
687410
Reply By: Member - Phil G (SA) - Wednesday, May 19, 2010 at 22:48
Wednesday, May 19, 2010 at 22:48
I can tell you what I'd do, which might be different to what many others would do.
I'm assuming you have the TD with dual cranking batteries behind the headlights, and that your 3rd battery is one of the slightly undersized trays that fit to the passenger's side of the engine bay.
I'd use a single N70 size cranking battery - the passenger's side is what most people use - your vehicle will start fine with the single cranking battery. Then use identical brand/type N70 and N50 auxillary batteries. Use your isolator to isolate the two auxillaries from the single cranking battery.
As far as what batteries, I prefer to use the wet cell "hybrid" like Exide Extreme or Century Overlander - they survive
well under the bonnet.
AnswerID:
417312
Reply By: Maîneÿ . . .- Thursday, May 20, 2010 at 07:40
Thursday, May 20, 2010 at 07:40
rare,
No major problem paralleling two identical auxiliary batteries, use heavy cable 2B&S (32mm²) or similar to avoid voltage drop between the batteries, place fuses adjacent to each battery on the (+) cable.
Maîneÿ . . .
AnswerID:
417329