Battery
#1
Battery
I purchased a CPO 2009 XK coupe 17 days ago from dealer 50 miles away. Everything was fine. After leaving in the garage for 3 days, I went to start it and it was as dead as a door nail. Put a 10 AMP charger on it for a few hours, wouldn't accept the charge. Left it overnight on 2 AMP's, still nothing. Jumped it and took it to a local Jaguar dealer. Battery under warranty and believe it or not, I was back on the road in 20 min.
Question. I've never had a battery go from fine to dead in such a short period of time. I would think that an electrical systems test during the CPO process would have easily discovered this. What do you think ?
Thanks.
Question. I've never had a battery go from fine to dead in such a short period of time. I would think that an electrical systems test during the CPO process would have easily discovered this. What do you think ?
Thanks.
#2
I know a common cure for some battery related problems has been to lock the doors when you park the car. If you do some searching in this forum, you'll find a thread where one of the members here did some measurements and found that the car stayed "semi active" for a long time after it had been turned off if you left the doors unlocked. Locking them made the car go to sleep immediately. I did a lot of research before buying, and the battery problem (and other issues related to the battery running out of juice) are by FAR the most common issue with the XK. Quirky, but locking the doors seems to be the commonly accepted "solution".
Don't know if this will solve your particular issue, but its something you could try...
Don't know if this will solve your particular issue, but its something you could try...
#4
#5
#6
I purchased a CPO 2009 XK coupe 17 days ago from dealer 50 miles away. Everything was fine. After leaving in the garage for 3 days, I went to start it and it was as dead as a door nail. Put a 10 AMP charger on it for a few hours, wouldn't accept the charge. Left it overnight on 2 AMP's, still nothing. Jumped it and took it to a local Jaguar dealer. Battery under warranty and believe it or not, I was back on the road in 20 min.
Question. I've never had a battery go from fine to dead in such a short period of time. I would think that an electrical systems test during the CPO process would have easily discovered this. What do you think ?
Thanks.
Question. I've never had a battery go from fine to dead in such a short period of time. I would think that an electrical systems test during the CPO process would have easily discovered this. What do you think ?
Thanks.
#7
Also, see: https://www.jaguarforums.com/forum/x...lay-ups-73471/ Not just for long lay-ups.
Stuart
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#9
#10
I do not think that it was a key issue. A charged battery that goes to full discharge in 3 days, then it would not accept a charge at all, was a faulty battery, likely with a shorted cell in it.
I always leave my car unlocked in the garage and have many multi weeks long periods when I do not start it. No problem with the OEM batteries for either this XK or my previous XK8.
Interior lights, if left on, could easily drain the battery even overnight. Just normal stand-by mode should not.
Albert
I always leave my car unlocked in the garage and have many multi weeks long periods when I do not start it. No problem with the OEM batteries for either this XK or my previous XK8.
Interior lights, if left on, could easily drain the battery even overnight. Just normal stand-by mode should not.
Albert
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cpf (06-28-2012)
#11
If a battery won't accept a charge or discharges in a short period of time. Then the battery is duff. As for minimizing the discharge rate when stored. I always lock with 2 presses on the remote. I was told this will put the computers into sleep mode straight away.
There has been a lot of advise on here on trickle chargers. Or conditioners i think they are sometimes called.
There has been a lot of advise on here on trickle chargers. Or conditioners i think they are sometimes called.
#13
These cars electrical demands are much higher than "other" cars. Additionally, the electronics in these cars are sensitive.
If you replace your battery, I highly recommend an Absorbed Glass Matt (AGM) battery. The run-of-the-mill lead acid batteries don't last as long and are subject to several chemical processes that AGM batteries do not suffer from.
They do cost more...
If you replace your battery, I highly recommend an Absorbed Glass Matt (AGM) battery. The run-of-the-mill lead acid batteries don't last as long and are subject to several chemical processes that AGM batteries do not suffer from.
They do cost more...
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