Quote:
Originally Posted by LennyBoy1
After going for a 30 min highway drive in the X5 around 2pm yesterday I brought it back and trickle charged it at 2amps till about 7pm. Then it sat in my heated garage (+5 Celsius) till 10am Sunday...I just checked the battery voltage and before starting was 12.1volts and then with engine running at idle it was about 14-15volts, ran it 2 minutes while testing, then shut it off the voltage was 12.02.
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Don’t check battery voltage right after turning the car off, it’s still drawing. Keep the hood open, come back after 20 mins and check again. By that time the car should have went to sleep, your voltage should be in 12.5-12.6 range.