BMW 3-Series (E90 E92) Forum - View Single Post - Starting issues - could it really be just a failing battery?

cparke · 03-12-2024, 12:38 PM

So the idea here is the voltage should be at all times >=13.5volt once the engine is running? Couldn't I also monitor that easily through the cigarette lighter port with a scope or analyzer that graphs the voltage (after the engine starts)?

03-12-2024, 12:38 PM	#7
cparke Private 15 Rep 58 Posts Drives: 2006 BMW 330i N52 Join Date: Oct 2017 Location: New York iTrader: (0)	So the idea here is the voltage should be at all times >=13.5volt once the engine is running? Couldn't I also monitor that easily through the cigarette lighter port with a scope or analyzer that graphs the voltage (after the engine starts)?
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