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      05-03-2019, 09:10 AM   #20
DVCNick
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Drives: 2006 M Roadster
Join Date: Dec 2017
Location: Greenville, SC

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I have the battery out of mine now. It was five years old according to the sticker so I guess that wasn't abnormal.

Autozone gave me the wrong battery at first... long story.

One thing I noticed that might be related: Before pulling the old battery I read 1.7V across the charge ports under the hood.

Once I got the battery out, it was reading 4V right on the terminals.

That seems like a lot of voltage drop to me just for a few feet of cabling... has anyone else measured this? Does this seem normal?
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