In the weeks since the last software update (and a 12v battery replacement), my Signature P85 ('A' pack) has been behaving very oddly with respect to charging.
A month ago, it would standard-charge to about 222mi and range-charge to about 242mi. Now it standard-charges to just 202mi and range-charges to 222mi. It's also been experiencing ~20mi of vampire losses per day; I can charge the car to 202mi at 9pm, and by 9am the next morning it's at 192mi.
In the settings, Power Management -> 'Energy Saving' is ON, and 'Always Connected' is OFF. I'm not accessing the car remotely via any API's, and the car is not exposed to any extreme temperatures, so I can't think of what could be causing the drain.
I've just done a range charge (to 222mi) and will let the pack sit and balance for a while; hopefully that will help somewhat. I've also sent a note to Tesla Service, and will update when I hear back from them. Have any of you experienced anything like this?