question concerning two batteries in my trunk please help car audio.com

[man_n_da_trunk 10+ year member]

okay heres my question to all car audio experts on the matter. i was told that with my system to get max power out of my amps i would need to run two batteries in the trunk. okay the first battery in my trunk will be ran off of my battery isolator. my question is if i add another battery in the trunk can i just run this 3rd battery parallel to the one already in my trunk. and will they charge at the same time? or will i have to get a battery isolator that allows me to run two extra batteries please anyone with some knowledge on this help me

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[ramos 5,000+ posts]

The single isolator should work for both batteries as long as you wire them parallel //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif