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Message: <blockquote data-quote="sharkman" data-source="post: 8717141" data-attributes="member: 661488"><p>I know its not a ton of power but i want to make sure im safe on battery. 73 nova with 160 alt. Only option i have is i added electric windows. So dd m3a and maybe 500 watts for the doors. As of now i have 2 ford 800 amp agm  batteries i got for cheap brand new. The car is not running yet so i have sometime. But i was wondering if i should upgrade my batteries to handle the m3 or should i be fine. No battery under the hood and dont plan to play with car off. 1/0 welding cable to the alt.</p></blockquote><p></p>

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