http://en-americas-support.nintendo....id/22525/p/897
Nintendo Switch System Updates and Change History
Latest version: 3.0.1 (Distributed 7/31/2017)
Improvements Included in Version 3.0.1
General system stability improvements to enhance the user's experience, including:
Addressed an issue in which the remaining battery charge can't be displayed accurately
If the system's battery power display suddenly increases or decreases, it will gradually improve by
following these steps