Michael Horn

Thanks for the input

So just get 1 battery and keep what I have under the hood and use the xs power battery as a secondary ?

Do u think ill be fine with just upgrading my battery under the hook instead of adding a second battery ?

Will be in a 2006 nissan Altima 2.5 I will be getting a dc power xp 270 amp alt and it will be daily use

Need some suggestions on what size battery to get I will be running it in the trunk I am running a Rockford fosgate t600-4 pushing t2652-s components and t1693 6x9s along with a alpine mrx-m240 pushing a Orion Hcca 12.4 will be doing a high output alternator upgrade and the big 3 just don't know what size battery is best for what I'm doing