In case you're wondering what one of these trackers look like, here's a teardown by iFixit:
https://www.ifixit.com/Teardown/Tracking+Device+Teardown/525...
https://www.ifixit.com/Teardown/Tracking+Device+Teardown/525...
> This teardown is not a repair guide. To repair your FBI Tracking Device, use our service manual.
I would be scared out of my mind if I found that on my car.
> Each cell is good for 13,000 mAh! That's about double the capacity of the iPad 2's battery.