Optima Yellowtop Battery for N15 SSS. Which model? Actual benefits?

[Keejoo]

Hey Guys,

Just looking for some quick advice on whether I need to upgrade my battery or if its overkill for my car's setup.

Which Optima Yellowtop battery model(s) are suited to the N15 SSS?

Also, if running 1x500-600 and 4x100 (RMS) amplifiers, is this battery necessary if i dont plan on running stereo that long when cars not running.

What are the actual benefits to justify the cost? (from what i remember its like twice the weight ~20kg and $300-350?)

Is it worth it over a standard century ultra/high performance battery [NS40ZLSX]? (with this simple sound system)

Thanks.