Quote:
Originally Posted by wsmeyer
You people are really paranoid. There's no black magic going on inside a battery. When the engine is running the battery is just a simple resistive load, and not a very large one at that. The radiator fan draws roughly 5 times the amp as the battery and the electrical system has no problems with that cycling on and off.
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Correct, nothing magical INSIDE the battery.
Once you understand how BMW manages the battery, and the modules they connect to it, you will recognize that the old days of 'just a battery hanging on a fat cable to the alternator/regulator' are a thing of the past.