My battery drained over night after i had the alternator changed but battery is still draining.
May 3, 2021 at 1:39 AM
Drained battery over night
2008 FORD FOCUS
STUNCOLE1
- MEMBER
- 1 POST
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ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Good morning,
There is something that is draining the battery even after the car is turned off.
I attached a guide for you to view on checking the draw and help to narrow down the area that s causing the issue.
https://www.2carpros.com/articles/car-battery-dead-overnight
You will need to remove the negative cable and put a voltmeter in line. Red lead to the cable and black lead to the battery post. Set the meter to DC amps and measure the draw. It show be no more than 50-75 milliamps. Any more than that, you need to remove the fuses, one by one, to determine which fuse is causing the issue.
Make sure you charge the battery to 12.6 volts before the test.
https://www.2carpros.com/articles/how-to-charge-your-car-battery
Roy
There is something that is draining the battery even after the car is turned off.
I attached a guide for you to view on checking the draw and help to narrow down the area that s causing the issue.
https://www.2carpros.com/articles/car-battery-dead-overnight
You will need to remove the negative cable and put a voltmeter in line. Red lead to the cable and black lead to the battery post. Set the meter to DC amps and measure the draw. It show be no more than 50-75 milliamps. Any more than that, you need to remove the fuses, one by one, to determine which fuse is causing the issue.
Make sure you charge the battery to 12.6 volts before the test.
https://www.2carpros.com/articles/how-to-charge-your-car-battery
Roy
May 3, 2021 at 3:42 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.