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Message: <blockquote data-quote="93dakota" data-source="post: 5706095" data-attributes="member: 602627"><p>If you are having problems with dimming then yes a second battery with help a big deal.  as do you really need one depends on what you want and what car you have. of your alt produces at least 80 amps you could live with out it but you may get dimming from your lights. if you have a 110amp or higher alt then you really should not need it but it is always better to have a second bat.</p></blockquote><p></p>

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