The best dual battery system
Submitted: Sunday, May 30, 2004 at 19:33
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OzWoz
Hi all !
I am about to fit a dual battery system to my 100 series . I,ve looked at the ARB , PIRANHA and ROTRONICS . Can anyone give some advice on which is considered to be the " best " system .
Thanks in advance
OzWoz
Reply By: Member - Captain (WA) - Monday, May 31, 2004 at 13:43
Monday, May 31, 2004 at 13:43
I runa redarc isolator, the same as the ARB smart solenoid but 1/2 the price. But as for the "best" system, I believe the charge/isolator by Rotronics is the best if you are talking about the ability to recharge the batteries properly.
A solenoid (redarc, ARB etc...) joins both batteries together and any internal resistance difference makes proper full recharging difficult. Now add a deep cycle battery into the equation (different internal resistances) and it will take ages to fully recharge it, if at all!!!
The rotronics overcomes this by individually charging the batteries as required and ensuring the starting battery stays charged. Add a 3rd deep cycle battery into say a van and it will also charge it. But a complete 3 bat plus winch setup costs over $1,000 just for the isolator!!!! Hence my redarc and manual switch to charge the van. Rotronics is great, but too $$$ IMHO
Cheers
Captain
AnswerID:
61006
Reply By: -OzyGuy- - Wednesday, Jun 09, 2004 at 13:44
Wednesday, Jun 09, 2004 at 13:44
Woz,
It depends on many factors, most not mentioned here.
What type of battery are you using as the 2nd battery?
is it a Cranking or a Deep Cycle battery?
What are you going to use the 2nd battery for eg; power fridge, lights ect.
Some Solenoids are not suitable in duel systems when the 2 batteries are not identical!
So many variables - so many different answers ???
AnswerID:
62412