1998 xj8 vdp
#1
#2
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Assuming your battery is good, there are many possible drains.
First and foremost, do not leave the key in the ignition when not using the car. That keeps assorted systems energized.
I always pull the key unless listening to the radio or driving.
Beyond that, get an ammeter and start pulling fuses to find the offending system. There are schematics and fuse panel diagrams available.
First and foremost, do not leave the key in the ignition when not using the car. That keeps assorted systems energized.
I always pull the key unless listening to the radio or driving.
Beyond that, get an ammeter and start pulling fuses to find the offending system. There are schematics and fuse panel diagrams available.
#3
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JaguarBill
I just got a little time to check the battery
I put the charger on the battery and my volt meter on the terminals
with the amp meter on the neg.cable of the charger.
14.65 volts at 35 amp charge charge rate for 5 minutes to see if the battery charge would hold voltage.
Amp meter shows 35 amps during charge.
I turned the charger off and voltage dropped to 12.15. Amp meter shows .10 amp drain.
I thought the amp meter was reading a error going through the charger so I removed the positive cable and the drain remains
This is all done with the car cables disconnected from the battery!!!
To me this sounds like a short in the battery.
Also there is no voltage leak across the top of the battery case.
any ideas???
I just got a little time to check the battery
I put the charger on the battery and my volt meter on the terminals
with the amp meter on the neg.cable of the charger.
14.65 volts at 35 amp charge charge rate for 5 minutes to see if the battery charge would hold voltage.
Amp meter shows 35 amps during charge.
I turned the charger off and voltage dropped to 12.15. Amp meter shows .10 amp drain.
I thought the amp meter was reading a error going through the charger so I removed the positive cable and the drain remains
This is all done with the car cables disconnected from the battery!!!
To me this sounds like a short in the battery.
Also there is no voltage leak across the top of the battery case.
any ideas???
#4
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