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Message: <blockquote data-quote="Adamsauve" data-source="post: 5585828" data-attributes="member: 592111">it was a new optima yellow top.. i had just gotten it yestarday... i hooked it up without the big 3 and it read a little over 10v... which is what my walmart bought battery was at.then when i did the big three it dropped to about 8.5.. but wouldnt drop at all or dim when my system it really hard..i know for a fact i didnt mess up doing the big three. i did everything correctly, ive been researching it for months..  did it with a 4 guage wire.. dont know what else i can tell ya..is something wrong?</blockquote>

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