Auxiliary Battery - Deep Cycle or Crank Type ??

Submitted: Tuesday, May 24, 2005 at 21:58
ThreadID: 23272 Views:5073 Replies:12 FollowUps:6
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I'm fitting a 2nd battery to my 4.5 80 series, l'm using it with a warn xd9000, waeco CF60 fridge plus other low current items.

A mate with lots of off-road experience suggested not to bother with a deep cycle type but fit a 2nd big cranker (eg 700CCA) directly connected to the main battery. ARB Northern also backed this up today but suggested to use an isolator as well, however hook up the winch to the main battery. This didn't seem to make much sense.
TJM suggested a deep cycle. In several phone calls, deep cycle seems more popular but needs an isolator and cannot be connected directly. Do you agree?

The Warn fitting manual states to use a deep cycle of at least 650CCA to drive the winch.

My plan is to hook up the aux to the main using 32mm^2 (2b&s) cable with a redarc or similar isolator.
I want a heavy (eg 200A) fusible link that l can bolt to the battery post and take feeds from in case of a major short - crash! I cannot find one. Anybody come across one nr Melbourne.

There doesn't seem to be too many threads on which type of battery to use as a auxiliary and what the effect to winching is caused by a crank / deep cycle type.
What info can anyone give?

There is mention of a Redarc 100A isolator available for about $100, cheapest l can find is $135 plus $16postage. Anybody know where l can get it cheaper?

Any experiences with battery type would be great.
Thanks
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