I have been reviewing this strand to learn a little about setting up a dual battery system. Instead of relocating, I and going to put a PAC-200 (200 amp relay) on and charge 2 batteries. I have a pretty strong mobile electronics install.

When my audio/video system asks for a lot of current I really get a lot of dimming out of my headlights.

I am hoping the extra reserve will allow me to get the current I need of the 140 alt that I have in there. I think it's the Bosch. I'll check.

I hope someone wants to shoot holes through my plan. Again...one battery up front, one (low maintinance) under the rear passenger.

Here is a link to the PAC-200. Planning on using 2-4 AWG for the whole install. Once I have it done I will put up some pics.