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  #1  
Old 01-24-2008, 09:12 AM
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Battery Isolation Switch

Hi All can I fit a switch to isolate the batteryto my X5 2oo1 4.4ltr . When i leave it for a week or two IT GOES FLAT.I have anew battery had it checked/ no drain /shuts down etc but still have a problem of flat battry!!AGENTS SEEM UNABLE TO RECTIFY THE FAULT.
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Old 01-24-2008, 10:12 AM
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Welcome to X5world!

Instead of a switch which will cause you to reset everything everytime you hook back up again, how about a simple battery tender?
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Old 01-24-2008, 01:10 PM
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Quote:
Originally Posted by X5Jay
Welcome to X5world!

Instead of a switch which will cause you to reset everything everytime you hook back up again, how about a simple battery tender?
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  #4  
Old 01-25-2008, 06:30 AM
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Originally Posted by TQ2K
Me too.
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Old 01-25-2008, 11:19 AM
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Quote:
Originally Posted by Aidank
…my X5 2oo1 4.4ltr
is it the original battery? if so, time for a new one. i leave my X for a month at a time and have no problem.

also, it is trivial to test the amount of drain. of course the alarm is always draining a tiny bit but shouldn't be enough to totally discharge a healthy battery in two weeks.
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Old 01-25-2008, 11:45 AM
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i've been told that once a battery has been completely drained, it's not going to hold a charge as well and should be replaced. so if you're new battery has gone dead, you should replace it.

the new battery could have had a bad cell in it too, or wasn't fully charged when you bought it.
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  #7  
Old 01-26-2008, 12:12 AM
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Dead Battery too

I have the same problem to. I bought the BMW charger a couple of years ago. If the X sits for a week the battery is dead. I have a new battery.
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Old 03-03-2008, 09:59 PM
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i thought of doing this too - would be good for someone who parks their car at the airport or something for extended periods of time.

I have battery tender, but not sure how much daily charging sufficient to maintain (its only 1 amp). I just got a new battery and dont want to risk killing it.

I guess driving the car once or twice a week at minimum should keep it going.
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