X5 immobilized/crank but won't start/low battery voltage/stranded after cold temps

[Qsilver7]

Originally Posted by xmac

Take a look at this battery options thread :

E53 X5 Battery Options - A List

I think QSilver7 sums it up best in reply #50 showing that most brands out there are made by Exide or Johnson Controls therefore Walmart = Exide or JC.

After doing some research, I also found that O'Reilly carries a rebranded DEKA "EverStart Extreme" in both standard and AGM (gel) flavors. I am leaning towards the AGM as my next battery.

One of the main points of the thread is to nudge folks to check and maintain their batteries regardless of the brand.

Very good points...and thanks for the clarification (about EWS).

[ProfessorX5]

Mine wouldn't crank this morning... charging up my jumper pack to see if the battery just died because of the cold +low charge.

[Qsilver7]

Also remember...if you've unlocked your cluster you can do TEST 9 in 10 seconds to see what your battery voltage is. If the battery voltge is really low...you may have to unlock your cluster again to do TEST 9. If yiu don't know whatyour interger isthat yu have to enter...do TEST 1 andadd up the last 5 digits of your VIN...Then proceed to UNLOCK the cluster (any testother than 1 & 2 will take you directly to TEST 19 where you should see LOCK ON & you can start pressing the left cluster button to get to the sum of your last 5 VIN digits....where you can then go to TEST 9.

Ifyour battery voltage is below 11 volts...thenyou're going to need a jump or a serious battery charger that can get your battery backup to 12 volts. Again,you cnrun TEST 9 to keep an eye on the battery'svoltage as your charging it or have jumper cables hooked up.

Please use the terminals in the engine bay if at all possible.