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      09-03-2010, 07:03 AM   #9
rsjean
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Drives: 135i
Join Date: Dec 2009
Location: Sonoran Desert, Tucson AZ

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I believe the suggested method of attaching the battery to the terminals under the hood should work. An open circuit is different for DC versus AC and I believe the car wiring takes this into account.

I know that a 12v battery attached to a cigarette lighter plug can be used to maintain settings on things like your radio and clock when the main battery is removed so there must be a complete circuit from there to those devices.
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Last edited by rsjean; 09-03-2010 at 09:48 AM..
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