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Wiring, Electrical & Installation
Can a bad/failing battery cause an alternator not to keep up?
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<blockquote data-quote="grandam888" data-source="post: 7377656" data-attributes="member: 628519"><p>also what size alternator? and a failing battery can cause alternator not to keep up. that is if you electrical system was beefed up enough to begin with.</p><p></p><p>when you exceed the alternators amperage for a brief period, it will draw from battery power. if said battery is failing, then you will be exceeding alternator amperage and have no where tol pull the extra power from.</p><p></p><p>what size is your alternator?</p><p></p><p>right now your pulling roughly 150-170 amps @ peak amperage draw from the amps, add the vehicles systems radio headlights A/C etc. your looking @ roughly 200-230 maybe a little more. this is why i run an alternator that amperage exceeds my demand, i really don't even need an extra battery.</p><p></p><p>so yes if the battery was saving your *** in terms of power availability and the battery is tanking, you will notice.</p></blockquote><p></p>
[QUOTE="grandam888, post: 7377656, member: 628519"] also what size alternator? and a failing battery can cause alternator not to keep up. that is if you electrical system was beefed up enough to begin with. when you exceed the alternators amperage for a brief period, it will draw from battery power. if said battery is failing, then you will be exceeding alternator amperage and have no where tol pull the extra power from. what size is your alternator? right now your pulling roughly 150-170 amps @ peak amperage draw from the amps, add the vehicles systems radio headlights A/C etc. your looking @ roughly 200-230 maybe a little more. this is why i run an alternator that amperage exceeds my demand, i really don't even need an extra battery. so yes if the battery was saving your *** in terms of power availability and the battery is tanking, you will notice. [/QUOTE]
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Can a bad/failing battery cause an alternator not to keep up?
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