Thread: Battery drain
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      04-21-2009, 08:06 AM   #11
strokeZ
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Drives: '11 e92 M3 6MT
Join Date: Mar 2009
Location: Houston, TX

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Tested the battery and turns out it was from the factory HU. Seems that it remained ON all the time (even w key out of ignition). I checked the amp in the trunk in the morning and it was still warm. Replaced the HU with an aftermarket and checked battery when car was off....reading 0.16 mA. I think this is normal, as my other vehicles read nearly the same.
Appreciate 0