AirPods plugged in

[100d]

If my car is not plugged in but I keep
My headphones plugged into the sub charger to charge.
What kind of battery drainage should I expect?

 

[Rascoe]

I believe the accessory outlets will power down when the car is sleeping.

Open the app and go to Service > Range and run a detailed analysis. It will show you usage and impact on range.

 

[jjrandorin]

If my car is not plugged in but I keep
My headphones plugged into the sub charger to charge.
What kind of battery drainage should I expect?

Unless model S is completely different than model 3 or Y, you should expect the airpods to stop charging as soon as the car goes to sleep, unless you do something specific to keep the car awake.

 

[100d]

Thanks

 

[PCMc]

If my car is not plugged in but I keep
My headphones plugged into the sub charger to charge.
What kind of battery drainage should I expect?

The apple tech specs I find on-line for AirPods 2 suggest the case has a 1.52 wat-hr battery with each AirPod having about 0.93 watt-hr each. So if all three were totally drained, you'd be looking at a combined total of less than 2 Wh (watt-hr).

To put that in perspective, driving one mile in your MS 100D probably is about 300 Wh energy use. So that says you'll use the equivalent of about 35 feet of driving range to fully charge your AirPods.

So I wouldn't worry about it!

 

[100d]

Gotcha. But nevertheless is it charging when the car is sleeping?

 

[Duke846]

If my car is not plugged in but I keep
My headphones plugged into the sub charger to charge.
What kind of battery drainage should I expect?

I nwould expect half your battery to drain into your AirPods overnight.