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-   -   Battery dies fast. (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/67881-battery-dies-fast.html)

diyanich 11-28-2009 05:39 PM

Hi Guys,
I just performed the Draw Test and to my surprise after car went to sleep the draw was of 0.02 Amps
If the shifter light is on it "sucks" 0.47 Amps with the lights on 3.50 Amps
As soon as it's off just 0.02 Amps
My guess is that should be a OK or it's still a high ?
Just my calculation, with a 0.02 amps draw my fully charged battery should last around 180 days.

killcrap 11-28-2009 06:01 PM

when you attached the volt meter to the car, did you keep the car alive, by leaving the gound connection on? if you disconnected the battery, you may have reset a control unit which may have caused the draw to go away.

diyanich 11-28-2009 06:32 PM

You know,
I accidentally disconnected it,I didn't think about this possibility,
I thought if there's a draw it will be present at any time.
Shoot,if you're right I am gonna need to redo the test tomorrow.
Thanks for you input.

Quote:

Originally Posted by killcrap (Post 684901)
when you attached the volt meter to the car, did you keep the car alive, by leaving the gound connection on? if you disconnected the battery, you may have reset a control unit which may have caused the draw to go away.


BrianX54.4is 11-28-2009 10:49 PM

Symptoms suggest a draw but 20 milliamps (0.02) is normal when all electrics shut down (shifter light off). It could be that you cured the problem as killcrap suggests. Do you have the factory cell phone installed? I have but the actual mobile is not the original one with the BMW firmware and if I leave it plugged in the cradle the electrics won't shutdown and the battery will drain in a couple of days.

diyanich 11-28-2009 11:40 PM

Hi Brian,
No cell option...
I am considering to rerun the test tomorrow morning,run it the way X stays with uninterrupted power.
Also I've got some instruction from Weasel,so I am gonna go ahead and check them all together.
Will write down the progress.
I am gonna find these freaking Gremlins :angryfire

Quote:

Originally Posted by BrianX54.4is (Post 684959)
Symptoms suggest a draw but 20 milliamps (0.02) is normal when all electrics shut down (shifter light off). It could be that you cured the problem as killcrap suggests. Do you have the factory cell phone installed? I have but the actual mobile is not the original one with the BMW firmware and if I leave it plugged in the cradle the electrics won't shutdown and the battery will drain in a couple of days.


diyanich 11-29-2009 12:23 PM

I am in the process of the draw check.
So far it was going ok,I could supply uninterrupted power while disconnecting the battery,
got an alarm to start 3 times though.
locked with shifter LED on gives me 0.27 Amps...
will post in 20 min

diyanich 11-29-2009 01:03 PM

I've got 0.02 Amps as soon as shifter LED went off.
Next step is the alternator/battery/starter load test.
Starter is the major power consuming part 1.7 KW = 141.6 Amps,it may be getting bad as well.

Weasel 11-29-2009 01:20 PM

Starters are always a high amp draw like that, that isn't indicative of a problem.

One question... Is the new battery you have OEM or something aftermarket?

diyanich 11-29-2009 04:23 PM

Hi Weasel,
The battery is an OEM one and was put in by Dealer.
I tried to check for AC voltage on the jump points and my meter is getting freaky every time I turn it to the AC measuring scale even without touching the leads.it's weird...

Quote:

Originally Posted by Weasel (Post 685077)
Starters are always a high amp draw like that, that isn't indicative of a problem.

One question... Is the new battery you have OEM or something aftermarket?


Weasel 11-29-2009 06:32 PM

It's probably in auto-range. I'd manually select a range if you can.


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