I've noticed that the last two times I have charged my Model 3, TeslaFi records my end SOC as 1% BELOW the level that was set.
For example, yesterday, I set the charge limit (in TeslaFi) to 55%, and it recorded the end charge SOC as 54%. Today, I set it for 80% and it recorded 79%. First time in hundreds of charge cycles (across two cars) that has happened,. One consequence is that I have seen a sudden spike improvement in the Battery Reoort, which I realize is probably the result of dividing the Ending range by a smaller End charge %. Here are the numbers from the battery report:
Customer support service by UserEcho