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Old 05-30-2011, 12:48 PM
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pointandgo pointandgo is online now
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Location: Los Angeles area
 
Join Date: Apr 2010
Posts: 4,826
Mein Auto: '13 F10 535i (loaner)
Quote:
Originally Posted by Kilgore Trout View Post
I just got back from a four day car camping trip. From about two days, my car was parked and basically never opened except for unloading. Because of racoons and such, I kept my dry food stored in a bin in the back and I'd do a lot of opening and closing of the car at dinner and breakfast time.

When I started the car to leave, the clock was blinking and I had a warning message about low battery.

Is this normal behavior? There was certainly some discharge of the battery over those three days (although not extreme, by any means. Should I be concerned?
Sounds like a little driving will get your battery charged up. We had a thread not too long ago about battery life and reports were quite diverse (3 - 5 yrs generally). The most interesting note that came out of this was a warning from BMW (some owner's manuals) about daily driving habits and keeping the battery charged:

"if your car is driven only for short distances of less than 10 miles over a prolonged period of time, without an occasional drive at highway speeds, the engines (sic) charging system will not maintain the battery."

Somewhat of a challenge for "seniors" who may only go to Costco once per week!
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E92 335i 6MT
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E39 528i 5MT
MBz W140 S320
MBz W124 300E (slammed)
(unmentionables in between)
'71 AMC Javelin (4-Spd Stick on the floor)
'67 Pontiac Firebird 'cabrio' (1st car - "the leaker")
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