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      01-19-2013, 06:20 PM   #15
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Drives: E90 lci
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Originally Posted by alexwhittemore View Post
The key reader stores a bunch of diagnostic info, including the battery voltage as of last removal. I forget why, but there you go .

For that matter, the car can check its own voltage, which you can read with an INPA cable. You can open the trunk and measure it with a multimeter, but then, hey, why bother.
so i guess what the key reader is saying 13.8v is fine then?
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