Alterator

By GSXR_RCR
January 12, 2007 in 1999-2013 Silverado 1500 & Sierra 1500

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GSXR_RCR

Posted January 12, 2007

one yesterday and had them check my charging system as part of my 103,000 mile service and my alternator was working but only had peak amps of 58.1 amps. I have noticed my battery(optima RED Top) has been going dead if I dont drive it for like 4 days. My radar detector is on so i guess its draining, but I was told that the 58.1 amps may be causing this as well caus its not charging the battery fully.

So today i opted for the 130 amp alternator and replaced the belt with a gatorback. I went back to the parts store and antoher employee tested the new alternator and it maxed at 101 amps. I dont think he did the test right but is that normal I mean he tested it at 2000 rpms, where does the alternator read 130 amps? What rpm i mean?

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