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      04-12-2011, 08:56 AM   #9
bekind
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Drives: x3 35i
Join Date: Mar 2011
Location: ohio

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I'd also like to know about the battery drain in general. Say we leave an interior map light on, will the vehicle know when the battery is being depleated and kill any electrical activity to allow enough juice to start the car?

On our Tahoe there is something called RAP. Retained Accessory Power. Basically it will allow things like the radio or map lights to work until the truck feels there is a low battery event. It will then kill all accessories to permit a start of the vehicle.

We have anything like that on our X3s?
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