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Message: <blockquote data-quote="AcidicDreams" data-source="post: 3087571" data-attributes="member: 558974">Batteries are for starting cars, not running them, or the system...If you don't plan on running the system alot when the car is not running you don't need a better battery...If you get alot of headlight dimming do the big 3 first (4ga is fine for your setup) then look at doing an alternator...If you are not getting headlight dimming then you don't need a new battery. However as batteries get older they won't hold a charge as well when it gets cold. So if that battery is older than 3-4 years old get a new one (if it's acting weak).My guess is that if you are running at least 4ga to the stereo and not clipping your amps then you aren't getting any headlight dimming...</blockquote>

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