Currently, when in timed charging mode, when you plug in, you see the blue LED lights light up in order: 1 then 2, then 3, etc.
This happens for only a few minutes, and then all the lights go out.
The problem with that is that "all lights out" could indicate either of two things>
1. Timed charging is not set up, or
2. Timed charging is set up, but not in the last few minutes
This problem caused us to have an uncharged car this morning. That is, if the display continued, we would have noticed when we checked the car before going to bed.
Yes, perhaps the flashing LEDs would drain the battery a tiny bit, but that's a small price to pay.