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Message: <blockquote data-quote="wew lad" data-source="post: 8553969" data-attributes="member: 665412">batteries are going to help but wont help with average load that's above 14v. you're not pulling a lot of load regardless, any alternator and battery set up should be able to keep up. if the red top was drawing excess its likely cumulated on top of the other issues but ive had a bad battery and it didnt kill an alternator on me.i feel like your pulley ratios were a big problem because ive heard of such on diesel motors. the second issue is heat and thats best addressed with larger cases. having two alternators for the load helps too.here's a 3rd possibility; your two alternators might be fighting each other causing the voltage regulator to burn up. you really really need to find accurate documentation (or an expert) on these alternators and their regulation</blockquote>

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