How much battery power am I gonna need?

[Carnivorous18 10+ year member]

So i'll be running a sundown saz-3000D and eventually a 400watt 4 channel amp rms for some type-r coaxials and components. Im planning on gettin an approximately 180-200amp HO alternator and a D51R Optima yellowtop for the engine. Am I gonna be ok with just the one Optima or am I gonna need a second one? I see Kinetik is a good brand for batteries but they're battery selector isn't giving me the kind of info I need if I wanted one of theirs as a second battery. How do you measure out what kind of power your batteries need to output with so many watts? Any helpful input is appreciated //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

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[csu87 10+ year member]

i would say a hc2400 or 3800 should suffice. you could always check out xs power. their d3100 is suppose to be good for up to 5000watts

 

[9515ROB 10+ year member]

i had 2 1800 kinetiks on my DD m3 which was a lil less power and i was gonna add another 1 b 4 i ungraded

 

[Carnivorous18 10+ year member]

i would say a hc2400 or 3800 should suffice. you could always check out xs power. their d3100 is suppose to be good for up to 5000watts

So is necessary amps determined by watts? Like 1:1 for every watt u have u need one amp of output? If so then it'll be easy for me to figure out how much amp output ill need in which case a d3100 might be overkill and I could probably pass with a D1200 or a D5100. Am I under the right impression? Thanks guys for the help