Low Battery???

BMW_03 · 03-13-2009, 12:04 AM

So today I was cleaning the car, engine off windows down and was playing some music using my iphone as an Aux on the sound system.
About 30 min. later the music stopped and I get this battery sign on the screen, low battery sign?? I was like

maybe since I have NAV the system draws more power and therefore drains the battery faster? I tried to start the car and It barely started, it really struggled to start, I'm so glad it did...

Has this happened to someone before? could it be a posible premature battery problem going on? it was like 67F outside so weather shouldn't be a fact, the car has barely 3k miles on but its an FEB 08' build...

SlammedR8 · 03-13-2009, 12:16 AM

Happened to me while my I was detailing my interior for about an hour, with music on and ignition actually set to ON so that my subs would have power. Anyways, my car turned on no problem but that same red battery light came on. Went off 10 seconds later and I just let the car run until I finished. Good to go since then!

04S · 03-13-2009, 12:22 AM

I had the same issue on my 335 and the same issue on my X5 4.8. For some reason they don't like having any power drawn while stationary. It turned into bigger issues on the 335 (apparently I was not driving the car far enough and the battery would not charge up enough). X5 no issues since. I would get it checked out if I were you to be on the safe side.

BMW_03 · 03-13-2009, 12:34 AM

Quote:

Originally Posted by slammedm3

Happened to me while my I was detailing my interior for about an hour, with music on and ignition actually set to ON so that my subs would have power. Anyways, my car turned on no problem but that same red battery light came on. Went off 10 seconds later and I just let the car run until I finished. Good to go since then!

Now that you mention it I had the ignition set ON as well to prevent the system from turning off after some time like it does if you only have the power on...maybe that's why it acted that way.. Ive always been detailing my car before for a while with music on and never happened before, but then again it's the first time i set the ignition on... thanks buddy..

valeram · 03-13-2009, 11:03 AM

Modern car consumes more energy with more buiilt-in electronics. Just the screen alone will drain you battery in no time. This is nothing to do with how the BMW was made. It is the law of Physics, energy in = energy out.

03-13-2009, 12:04 AM	#1
BMW_03 Lieutenant 25 Rep 450 Posts Drives: G01 X3 xDrive30i On Order Join Date: Mar 2008 Location: Tennessee iTrader: (4)	Low Battery??? So today I was cleaning the car, engine off windows down and was playing some music using my iphone as an Aux on the sound system. About 30 min. later the music stopped and I get this battery sign on the screen, low battery sign?? I was like maybe since I have NAV the system draws more power and therefore drains the battery faster? I tried to start the car and It barely started, it really struggled to start, I'm so glad it did... Has this happened to someone before? could it be a posible premature battery problem going on? it was like 67F outside so weather shouldn't be a fact, the car has barely 3k miles on but its an FEB 08' build...
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03-13-2009, 12:16 AM	#2
SlammedR8 Major General 523 Rep 5,483 Posts Drives: 2019 X5 40i/2020 R8 V10 Spyder Join Date: Jul 2007 Location: Toronto iTrader: (2)	Happened to me while my I was detailing my interior for about an hour, with music on and ignition actually set to ON so that my subs would have power. Anyways, my car turned on no problem but that same red battery light came on. Went off 10 seconds later and I just let the car run until I finished. Good to go since then! __________________ Current: 2019 BMW X5 40i - Carbon Black/Tartufo Individual Leather 2020 Range Rover HSE - Black/Black 2020 Audi R8 V10 Performance Spyder 6MT - Ascari Blue/Black
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03-13-2009, 12:22 AM	#3
04S Captain 174 Rep 837 Posts Drives: M4 xDrive, X5 40i and U11 X1 Join Date: Sep 2008 Location: Sydney, Australia iTrader: (0)	I had the same issue on my 335 and the same issue on my X5 4.8. For some reason they don't like having any power drawn while stationary. It turned into bigger issues on the 335 (apparently I was not driving the car far enough and the battery would not charge up enough). X5 no issues since. I would get it checked out if I were you to be on the safe side.
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03-13-2009, 11:03 AM	#5
valeram Major 37 Rep 1,413 Posts Drives: 992 TTS, 991.2 GT3 T, F80 M3 C Join Date: Oct 2006 Location: Dublin, OH iTrader: (0)	Modern car consumes more energy with more buiilt-in electronics. Just the screen alone will drain you battery in no time. This is nothing to do with how the BMW was made. It is the law of Physics, energy in = energy out.
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