Dual batteries in my Rolla.. question

[Punisher]

I plan on taking my 550amp battery along with getting another battery hopefully in the range more of 700amp or better.. putting them both in my trunk.. then rigging up a 3 way switch..

The switch will let me change between the two batteries.. and the third function of the switch being both batteries are being used..

I'm just wondering if I will run into any alternator power issues with having both batteries on at the same time.. like for charging purposes.. I know I could just cycle.. one week run off of the one battery.. the other run off of the other.. but anyway that's not the point of this..

The point is that now with a more powerful audio system I fear that I'm going to get stuck with a dead or to low amps from my battery... This would be fixed with having a reserve battery.. or let's say for some freaked up reason both batteries are below the 330amps needed to power the starter.. But combined they would have enough power.. get my drift?

So anyway.. I was just wondering if I had both batteries on the circuit at the same time if I will have alternator charging issues.

[RedruM]

you'll kill your alternator
and there's NO point to doing this

besides why do you want that much extra weight

[Hook]

shouldn't just an upgrade to a 700CCA be enough? what u wanna do with all that current anyway?

A good battery with plenty storage capacity and a proper working alternator is pretty much all u need.