Yes, they stop automatically and display the charge time and mah put in but once you press stop it clears the display.
I only fully charge after flying if I'm setting up a system or making changes, after that I go right to storage charge after flying. Don't want to work the battery unnecessarily. You only get X number of charge/discharge on those things.
Right now I'm only using 71% capacity for the full pattern +3 laps but thinking of adding a few more laps. Don't want to miscount then crap out in the clover leaf.
MM