Rx300 Winter Battery Voltage Test

[Laura_Lexus]

I have just fitted the 2nd Battery to my RX300 within 12 months. I am concerned the Battery may be draining while standing unused on my driveway for a period of 1-2 weeks. Since installing the new Battery I have checked the voltage after a reasonable journey (12.68v Perfect). If left for a few days the voltage drops to 12.4v, if the key is placed in the ignition and turned to ACC the voltage is 12.2v. I have scanned the internet and believe the Battery may be reading a lower voltage due to the cold weather, currently 3C. Has anyone checked there Battery with a multimeter and taken past readings when the car is left standing? Would appreciate any advice / feedback as I don't wish to buy yet another Battery and need to check why it is draining if that is the problem.

The car is currently starting OK ( used every 3-4 days), just need to gain confidence that my car is not suffering from parasitic Battery drain..

Thanks

[mr62]

I have just fitted the 2nd battery to my RX300 within 12 months. I am concerned the battery may be draining while standing unused on my driveway for a period of 1-2 weeks. Since installing the new battery I have checked the voltage after a reasonable journey (12.68v Perfect). If left for a few days the voltage drops to 12.4v, if the key is placed in the ignition and turned to ACC the voltage is 12.2v. I have scanned the internet and believe the battery may be reading a lower voltage due to the cold weather, currently 3C. Has anyone checked there battery with a multimeter and taken past readings when the car is left standing? Would appreciate any advice / feedback as I don't wish to buy yet another battery and need to check why it is draining if that is the problem.

The car is currently starting OK ( used every 3-4 days), just need to gain confidence that my car is not suffering from parasitic battery drain..

Thanks

Hi

I had a similr problem the Battery would be flat after a weeks holiday, it was suggested to me that it might be the alarm draining the Battery so on my last holiday I disconnected it and when I returned it started first time.

Roy