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When the truck is running, with the headlights and blower on, I have 12.5 volts at the battery. When I turn the lights and blower off, I get 12.9 at the battery. Any thoughts?
it still ain't charging unfortunately. the headlites/blower are draining the batt then when you shut em off it stops the drain & lets the batt voltage come back up a bit just because the drain from the batt has been stopped. EDIT normal charging voltage is gonna be at least in the 13's

Last edited by RapidRobert; 10/08/16 03:08 AM.
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