Battery is Dead Again
#1
Thread Starter
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Senior Member
Battery is Dead Again
Good day y’all,
Was going to perform my ritualistic wash and wax today when my XK refused to start. Checked the battery voltage and it reads 5.4…..that is a terrible read. I haven’t left anything on, I double locked the car with Fob. And I bought this battery brand new at AutoZone back in March.
Battery type is Duralast Platinum-AGM H-8, I currently have it connected to my battery maintainer so let’s see if it helps by tonight, tomorrow.
Thoughts?
Was going to perform my ritualistic wash and wax today when my XK refused to start. Checked the battery voltage and it reads 5.4…..that is a terrible read. I haven’t left anything on, I double locked the car with Fob. And I bought this battery brand new at AutoZone back in March.
Battery type is Duralast Platinum-AGM H-8, I currently have it connected to my battery maintainer so let’s see if it helps by tonight, tomorrow.
Thoughts?
#2
Veteran Member
#4
Veteran Member
@indyx358. If you have anything plugged into the OBDII port, remove it after you turn off the ignition. Leaving it plugged in could cause a battery drain.
You stated: "I double locked the car ... ". Actually, you didn't.
All USA market JLR vehicles have double-locking disabled from the factory, as it violates US law. If you try to "double lock" your X150, you will get a "beep beep" from the sounder, which is an error message that means your car is not double locked. Double locking prevents the doors from being opened from the inside, as well as the outside.
Double locking is not available on USA market vehicles because the National Highway Transportation Safety Administration deemed it to be unsafe. Double locking is popular in Europe because it makes cars more difficult to steal. However, because the doors cannot be opened from the inside when double-locked, a small child or other person can be trapped inside and die from extreme heat.
Visual confirmation that your car is locked is that your side mirrors have automatically folded in, unless you disabled that feature or your car is not equipped with it.
For more information:
See: NHTSA January 2009 Double Locking
Stuart
You stated: "I double locked the car ... ". Actually, you didn't.
All USA market JLR vehicles have double-locking disabled from the factory, as it violates US law. If you try to "double lock" your X150, you will get a "beep beep" from the sounder, which is an error message that means your car is not double locked. Double locking prevents the doors from being opened from the inside, as well as the outside.
Double locking is not available on USA market vehicles because the National Highway Transportation Safety Administration deemed it to be unsafe. Double locking is popular in Europe because it makes cars more difficult to steal. However, because the doors cannot be opened from the inside when double-locked, a small child or other person can be trapped inside and die from extreme heat.
Visual confirmation that your car is locked is that your side mirrors have automatically folded in, unless you disabled that feature or your car is not equipped with it.
For more information:
See: NHTSA January 2009 Double Locking
Stuart
Last edited by Stuart S; 10-05-2024 at 05:54 PM.
#5
Thread Starter
|
Senior Member
@indyx358. If you have anything plugged into the OBDII port, remove it after you turn off the ignition. Leaving it plugged in could cause a battery drain.
You stated: "I double locked the car ... ". Actually, you didn't.
All USA market JLR vehicles have double-locking disabled from the factory, as it violates US law. If you try to "double lock" your X150, you will get a "beep beep" from the sounder, which is an error message that means your car is not double locked. Double locking prevents the doors from being opened from the inside, as well as the outside.
Double locking is not available on USA market vehicles because the National Highway Transportation Safety Administration deemed it to be unsafe. Double locking is popular in Europe because it makes cars more difficult to steal. However, because the doors cannot be opened from the inside when double-locked, a small child or other person can be trapped inside and die from extreme heat.
Visual confirmation that your car is locked is that your side mirrors have automatically folded in, unless you disabled that feature or your car is not equipped with it.
For more information:
See: NHTSA January 2009 Double Locking
Stuart
You stated: "I double locked the car ... ". Actually, you didn't.
All USA market JLR vehicles have double-locking disabled from the factory, as it violates US law. If you try to "double lock" your X150, you will get a "beep beep" from the sounder, which is an error message that means your car is not double locked. Double locking prevents the doors from being opened from the inside, as well as the outside.
Double locking is not available on USA market vehicles because the National Highway Transportation Safety Administration deemed it to be unsafe. Double locking is popular in Europe because it makes cars more difficult to steal. However, because the doors cannot be opened from the inside when double-locked, a small child or other person can be trapped inside and die from extreme heat.
Visual confirmation that your car is locked is that your side mirrors have automatically folded in, unless you disabled that feature or your car is not equipped with it.
For more information:
See: NHTSA January 2009 Double Locking
Stuart
im currently waiting to see if charge is held after some time on the maintainer.
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charger77 (Today)
#6
Veteran Member
If you leave your Smartkey within 10 feet of your XK, the car will stay in Convenience Mode longer and could drain the battery.
Even though you bought that AGM battery in March 2024, you don't know if it was fully charged when installed or how long it sat on AutoZone's shelf discharging before being installed. Drive back to AutoZone when you can and have them load test your battery. They may decide to replace it under warranty.
Another possibility is that you're not driving far enough every day for your alternator to fully charge the battery, or the alternator isn't charging. See: Alternator Not Charging
Don't randomly throw new parts at your car. Get the Diagnostic Trouble Codes and follow the troubleshooting guide.
Good luck!
Stuart
Even though you bought that AGM battery in March 2024, you don't know if it was fully charged when installed or how long it sat on AutoZone's shelf discharging before being installed. Drive back to AutoZone when you can and have them load test your battery. They may decide to replace it under warranty.
Another possibility is that you're not driving far enough every day for your alternator to fully charge the battery, or the alternator isn't charging. See: Alternator Not Charging
Don't randomly throw new parts at your car. Get the Diagnostic Trouble Codes and follow the troubleshooting guide.
Good luck!
Stuart
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indyx358 (10-06-2024)
#7
Thread Starter
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Senior Member
If you leave your Smartkey within 10 feet of your XK, the car will stay in Convenience Mode longer and could drain the battery.
Even though you bought that AGM battery in March 2024, you don't know if it was fully charged when installed or how long it sat on AutoZone's shelf discharging before being installed. Drive back to AutoZone when you can and have them load test your battery. They may decide to replace it under warranty.
Another possibility is that you're not driving far enough every day for your alternator to fully charge the battery, or the alternator isn't charging. See: Alternator Not Charging
Don't randomly throw new parts at your car. Get the Diagnostic Trouble Codes and follow the troubleshooting guide.
Good luck!
Stuart
Even though you bought that AGM battery in March 2024, you don't know if it was fully charged when installed or how long it sat on AutoZone's shelf discharging before being installed. Drive back to AutoZone when you can and have them load test your battery. They may decide to replace it under warranty.
Another possibility is that you're not driving far enough every day for your alternator to fully charge the battery, or the alternator isn't charging. See: Alternator Not Charging
Don't randomly throw new parts at your car. Get the Diagnostic Trouble Codes and follow the troubleshooting guide.
Good luck!
Stuart
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charger77 (Today)
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#8
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i humbly disagree. If the car was in convenience mode for 20 mins and if that caused the battery to drain to 5v, the battery was on its last legs anyways.
Furthermore, your particular car does not call for an AGM battery. No, I am not saying that would be the cause of the failure.
But you could save some money and put the specified battery in the car. And get the same life out of it.
Furthermore, your particular car does not call for an AGM battery. No, I am not saying that would be the cause of the failure.
But you could save some money and put the specified battery in the car. And get the same life out of it.
Last edited by guy; 10-06-2024 at 05:00 AM.
#9
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indyx358 (10-06-2024)
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indyx358 (Yesterday)
#13
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Last edited by indyx358; Yesterday at 12:55 AM.
#14
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I never considered the clunk sound of the locks should also have a 'chirp'
Mine has never chipped and the battery has always been a monitored concern for myself. (Watching it slowly drop.)
Wj
#16
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#17
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i humbly disagree. If the car was in convenience mode for 20 mins and if that caused the battery to drain to 5v, the battery was on its last legs anyways.
Furthermore, your particular car does not call for an AGM battery. No, I am not saying that would be the cause of the failure.
But you could save some money and put the specified battery in the car. And get the same life out of it.
Furthermore, your particular car does not call for an AGM battery. No, I am not saying that would be the cause of the failure.
But you could save some money and put the specified battery in the car. And get the same life out of it.
what is the specified battery type for my 2007 XK N/A?
#18
Hi
I recently had the alarm sounder replaced and now the battery does not discharge and the alarm chirps on locking.
the receipt shows part number C2D47174
The picture of the part shown in another reply is just the normal horn and not the sounder.
The sounder is beneath the bonnet airbag and because of this i decided to have it done at the dealer, however it is a relatively easy diy for most people.
Apparently this unit has an internal battery and when it fails the car supplies voltage continuously from the main battery causing discharge and eventually battery failure.
Part from Jaguar was £120 plus fitting.
Hope this helps.
I recently had the alarm sounder replaced and now the battery does not discharge and the alarm chirps on locking.
the receipt shows part number C2D47174
The picture of the part shown in another reply is just the normal horn and not the sounder.
The sounder is beneath the bonnet airbag and because of this i decided to have it done at the dealer, however it is a relatively easy diy for most people.
Apparently this unit has an internal battery and when it fails the car supplies voltage continuously from the main battery causing discharge and eventually battery failure.
Part from Jaguar was £120 plus fitting.
Hope this helps.
Last edited by paulgorringe; Yesterday at 01:27 AM. Reason: added information
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#19
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