it also takes some time for the BCM to learn just how much capacity your battery has and adjust accordingly. the level it shows after an initial reset is just a guesstimate by the computer based on the initial and after charge voltage levels.
the SOC bars may be slightly erratic for a few drive cycles til it figures things out.
2000 silver 5 speed 275k (RIP, accident casualty)
2001 blue 5 speed 300k (daily driver)