Battery Going Dead - - Pontiac G8 Discussion Forum
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post #1 of 3 (permalink) Old 12-23-2018, 09:19 PM Thread Starter
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Join Date: Dec 2018
Location: So. California
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Battery Going Dead

Hey Guys
Just joined your forum today and wanted to ask my first tech question to see if anyone has any ideas on this.

2008 G8 V6:
Starting out with a fairly new AC Delco battery that is fully charged, car starts and runs with no problem day after day, but after sitting for about 4 days without being started/driven the battery is dead. I had NAPA auto parts load test and they said it was fine. Lights, trunk light, glove box light, dome lights all seem to be working as they should.

Anyone have any suggestion or know of any common problems that I might look into.

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post #2 of 3 (permalink) Old 03-27-2019, 02:44 PM
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Join Date: Dec 2014
Location: Suburban Washington DC
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Check for voltage drop across the fuses to narrow down what's draining the battery.
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post #3 of 3 (permalink) Old 11-25-2020, 11:30 AM
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