Why does my battery drain when I lock my car?
If the battery is old, then Is suspect a new battery will be the order of the day as the current figures look ok. At least its not my Audi that draws almost 15amps for 10 mins when you lock the car before it goes fully to sleep.
How can I find out if my battery is draining?
Replace the fuse and disconnect each lamp, heater, or electrical device one at a time. Flip all of the switches that correspond to the components as well. Watch for the reading on the multimeter to drop to find out which component is causing the drain. For instance, say the offending fuse controls the power antenna as well as the radio.
Why is my glove box light draining the battery?
Inspect the glove box light, in most cases this light is controlled by a small pin switch inside the box door frame. If this switch malfunctions or is misaligned it will allow the light to stay on draining the battery.
How to find the cause of parasitic battery drain?
Luckily, you can usually find the cause of a parasitic draw yourself. Start by connecting a digital multimeter to the negative battery terminal of your vehicle. Then, remove the fuses one at a time while watching for changes in the multimeter’s reading.
If the battery is old, then Is suspect a new battery will be the order of the day as the current figures look ok. At least its not my Audi that draws almost 15amps for 10 mins when you lock the car before it goes fully to sleep.
What to do when your car battery drains?
Start with a fully charged battery. If yours is low, use a battery charger, or have a friend assist with jumper cables from a good battery. Recreate the same configuration as when the battery drains overnight. Meaning, shut everything off, lock the doors, and take a key with proximity sensor away from the vehicle.
Replace the fuse and disconnect each lamp, heater, or electrical device one at a time. Flip all of the switches that correspond to the components as well. Watch for the reading on the multimeter to drop to find out which component is causing the drain. For instance, say the offending fuse controls the power antenna as well as the radio.
Inspect the glove box light, in most cases this light is controlled by a small pin switch inside the box door frame. If this switch malfunctions or is misaligned it will allow the light to stay on draining the battery.