Quote:
Originally Posted by Helihover
Sweet. So how much does your e53 fluctuate during normal driving?
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I do not have an E53 at the momement, I have an E39, E46 and E70. I also have a GMC Truck that has a special charging system with a current loop and the alternator is actually shuts off at times and will draw directly from the battery at times (this is for fuel savings). So my GMC truck varies by as much as 2 Volts or more.
I believe my BMW's may vary on the extreme by maybe 1.5 Volts, but typically under 1.0 Volt is pretty much the norm.
I think 13.8 Volts tends to be the sweet spot for most of my BMW's as I recall.