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2005 STS V8 Battery Group 101


wfpd39

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There are a lot of them out there. Watch out for "universal" batteries with both top terminals and side terminals. The top terminals are shorts (and fires) looking for a place to happen, and the top terminals may not clear chassis braces or your hood.

I've tried them and found that the most miles per dollar are still with a Delco OEM battery.

CTS-V_LateralGs_6-2018_tiny.jpg
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The batteries that are mounted under the rear seat seem not to have a direct aftermarket equivalent.

Kevin
'93 Fleetwood Brougham
'05 Deville
'04 Deville
2013 Silverado Z71

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It is under the hood, not under the seat as with the older STS's. I have been told that a 1999-1994 DeVilleConcours has the same size battery. Can anyone confirm that?

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