Phoenix Gold Phorum

In some systems ive seen an extra/seperate car battery in the trunk.
now how does one set that up im just interested in knowing how to do that,

And how does it work?

Well sometimes its just a relocated battery

For a Dual battery set up it is essential you get an isolater like the stinger sr200 and connect the batteries in parallel:

http://www.hifisoundconnection.com/Shop ... /SFV/30046

If wire the batteries without an isolator then they will fight for power "only" when the car is "switched off" and eventually one battery will die. I have experiened that myself. I would recommend you use a deep cycle battery like the optima yellowtop.

Haz

Haz wrote:For a Dual battery set up it is essential you get an isolater like the stinger sr200 and connect the batteries in parallel:

http://www.hifisoundconnection.com/Shop ... /SFV/30046

If wire the batteries without an isolator then they will fight for power "only" when the car is "switched off" and eventually one battery will die. I have experiened that myself. I would recommend you use a deep cycle battery like the optima yellowtop.

Haz

Yup this is excellent info as I too had a problem with my sr200 a short while ago. It killed my Optima Yellow, but luckily it is a deep cycle and recharged fine. Make sure you wire the isolator to the correct ignition wire .