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Corvette
Corvette Tech Questions & DIY
charging issue
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<blockquote data-quote="CCO" data-source="post: 67088" data-attributes="member: 970"><p>In gear it's idling quite low, normally about 500 rpm's : not exactly the optimum charging time. I'm thinking around 12 volts could be normal.</p><p></p><p>Question: Does the charge rate rise to the normal 14 - 14.5 volts at cruising speed, and is the battery holding a charge? -- A load test would tell a lot.</p><p></p><p>Something to keep in mind is that our precious 'vettes do have a lot of live circuits that could cause excessive discharge and discharge problems do seem to be quite common.</p><p></p><p>If it were mine I'd want to know if there is excessive discharge with engine off and that the new alternator's charge rate is within spec.</p><p>A voltmeter is all you need.</p><p>Colin.</p></blockquote><p></p>
[QUOTE="CCO, post: 67088, member: 970"] In gear it's idling quite low, normally about 500 rpm's : not exactly the optimum charging time. I'm thinking around 12 volts could be normal. Question: Does the charge rate rise to the normal 14 - 14.5 volts at cruising speed, and is the battery holding a charge? -- A load test would tell a lot. Something to keep in mind is that our precious 'vettes do have a lot of live circuits that could cause excessive discharge and discharge problems do seem to be quite common. If it were mine I'd want to know if there is excessive discharge with engine off and that the new alternator's charge rate is within spec. A voltmeter is all you need. Colin. [/QUOTE]
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Corvette
Corvette Tech Questions & DIY
charging issue
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