BMW 3-Series (E90 E92) Forum - View Single Post

coleybmw335 · 03-01-2021, 07:36 AM

It could also be the car is not going to sleep after you lock the car, Some thing not going to sleep which would drain the battery.

I think a good battery should read around 12.8V when not running & 14+V when the engine is running

03-01-2021, 07:36 AM	#4
coleybmw335 Private 11 Rep 82 Posts Drives: 2009 E92 335I DCT Join Date: Feb 2018 Location: Derby, England iTrader: (0)	It could also be the car is not going to sleep after you lock the car, Some thing not going to sleep which would drain the battery. I think a good battery should read around 12.8V when not running & 14+V when the engine is running
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