Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > X Series > X3 E83 (2004 - 2010)

X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

Reply
 
Thread Tools Display Modes
  #1  
Old 07-14-2016, 04:53 PM
Hatzenbach Hatzenbach is offline
Registered User
Location: California
 
Join Date: Jul 2009
Posts: 96
Mein Auto: 2015 i3 & 2006 X3
Battery Life

Well, since I leased an i3, my X3 doesn't get driven much anymore.
Just every couple of weeks when I take my kids somewhere outside the electric range of the i3.
I noticed that after 2 weeks of being parked the battery loses it's charge and I need to jump-start the car.
Trickle charging is not an option as the car is parked on the street.

Is two weeks pretty normal or is the battery on it's way out and should be replaced?
Reply With Quote
Advertisement
  #2  
Old 07-14-2016, 05:01 PM
dukedkt442 dukedkt442 is offline
Officially Welcomed to the 'Fest
Location: Upstate, NY
 
Join Date: Feb 2013
Posts: 1,078
Mein Auto: 08 E83; '86 442; 84 GMC
Battery is shot. I've left mine from May thru September and it fired right up, and that's with an undersized H6.
__________________
Reply With Quote
  #3  
Old 07-14-2016, 07:27 PM
abscate abscate is offline
Officially Welcomed to the 'Fest
Location: NYC
 
Join Date: May 2014
Posts: 337
Mein Auto: 2006 BMW X3... VOLVO... V
Probably a weak battery. My guess is it's been replaced once and now it's 05 years old?
Reply With Quote
  #4  
Old 07-15-2016, 10:07 AM
Supercourse Supercourse is offline
Officially Welcomed to the 'Fest
Location: British Columbia, Canada
 
Join Date: Feb 2008
Posts: 3,721
Mein Auto: 2004 X3 2.5i
Not all batteries are created equal. Duke lucked out with a good one.

For most vehicles I have had leaving them for 3 weeks hasn't been a problem (I would be delighted with 3 months).

When you get a new one make sure it is fresh and fully charged before installing it. Letting your alternator charge it up is not the best way.
Reply With Quote
  #5  
Old 07-15-2016, 10:54 AM
Doug Huffman's Avatar
Doug Huffman Doug Huffman is offline
Nuclear engineer
Location: Washington Island, Wisconsin, thru Death's Door
 
Join Date: Apr 2015
Posts: 2,239
Mein Auto: 2012 X5 35d (E70)
Eight years is about the most that can be expected of a well treated AGM before it dies of internal corrosion. A BMW is designed not to fully charge its AGM battery. One ampere-hour of overcharge measurably damages an AGM battery by converting 0.335 grams of water to gas.
__________________
Post hoc ergo propter hoc is a weak logic akin to arguing from ignorance, "I don't know, but ..." Better to be silent and thought a fool than to babble and remove all doubt.
Reply With Quote
  #6  
Old 07-15-2016, 11:28 AM
Hatzenbach Hatzenbach is offline
Registered User
Location: California
 
Join Date: Jul 2009
Posts: 96
Mein Auto: 2015 i3 & 2006 X3
Quote:
Originally Posted by abscate View Post
Probably a weak battery. My guess is it's been replaced once and now it's 05 years old?
that sounds about right.
Cool, I'll replace the battery
Reply With Quote
  #7  
Old 07-15-2016, 11:36 AM
veery veery is offline
Officially Welcomed to the 'Fest
Location: Danby NY
 
Join Date: Feb 2015
Posts: 774
Mein Auto: 2011 328i X; 2005 X3
If it sits on the street 2 weeks between use, maybe you should consider a solar powered battery tender, even after you replace the battery.
__________________
Reply With Quote
  #8  
Old 07-22-2016, 09:48 PM
Hatzenbach Hatzenbach is offline
Registered User
Location: California
 
Join Date: Jul 2009
Posts: 96
Mein Auto: 2015 i3 & 2006 X3
ok, replaced the battery today. if it still doesn't last longer than 2 weeks, i'll go the solar charger route
Reply With Quote
  #9  
Old 07-23-2016, 04:32 AM
dukedkt442 dukedkt442 is offline
Officially Welcomed to the 'Fest
Location: Upstate, NY
 
Join Date: Feb 2013
Posts: 1,078
Mein Auto: 08 E83; '86 442; 84 GMC
A 20 mile continuous trip should be all that you need. If you need a battery charger for a car that sits 2 weeks, you have a draw some where. Any car should be able to sit for a month without a problem.
__________________
Reply With Quote
  #10  
Old 07-23-2016, 04:32 AM
Doug Huffman's Avatar
Doug Huffman Doug Huffman is offline
Nuclear engineer
Location: Washington Island, Wisconsin, thru Death's Door
 
Join Date: Apr 2015
Posts: 2,239
Mein Auto: 2012 X5 35d (E70)
An AGM battery's nominal self-discharge rate is about 1%/day, therefore 100 days from full to flat on self-discharge. A BMW's nominal design closed-circuit (BMW for OFF) draw is about 20 mA.

A properly installed, charged, registered, and adapted BMW AGM battery should be usable for weeks without charging.
__________________
Post hoc ergo propter hoc is a weak logic akin to arguing from ignorance, "I don't know, but ..." Better to be silent and thought a fool than to babble and remove all doubt.
Reply With Quote
  #11  
Old 07-23-2016, 01:18 PM
joylove joylove is offline
Officially Welcomed to the 'Fest
Location: USA
 
Join Date: Mar 2013
Posts: 1,889
Mein Auto: 08 e83 LCI
Quote:
Originally Posted by dukedkt442 View Post
A 20 mile continuous trip should be all that you need. If you need a battery charger for a car that sits 2 weeks, you have a draw some where. Any car should be able to sit for a month without a problem.
+1 you should be able to fly away for two weeks and still come back to the car that works just fine.
Reply With Quote
  #12  
Old Yesterday, 04:09 AM
x3brian x3brian is offline
Officially Welcomed to the 'Fest
Location: Sacramento CA
 
Join Date: Jan 2011
Posts: 1,245
Mein Auto: X3
Battery Life

Quote:
Originally Posted by Doug Huffman View Post

A properly installed, charged, registered, and adapted BMW AGM battery should be usable for weeks without charging.

Agreed ...

... Please note...the e83 does not require or have the ability to register a battery. In addition, AGM was not the original battery type...although most of us have upgraded to an h8 high CCA version....

3 weeks shouldn't be an issue. If the problem reoccurs after new battery, I would take it in to search for a parasitic draw.

Last edited by x3brian; Yesterday at 04:25 AM.
Reply With Quote
Reply

See More Related BMW Stories


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > X Series > X3 E83 (2004 - 2010)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



Forum Jump


All times are GMT -7. The time now is 01:46 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
© 2001-2015 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms