inac k lenovu je napr. tuto diskusia ale nie vsetko co tam pisu je spravne, ale mas tam nejake veci ktore mozes skusit napr.

Open the Lenovo energy management, and where you have the options for Optimize for battery health or battery run time, at the bottom it says
Battery Gauge Reset
Start.
click it and do the on screen instructions.

To ti nanovo zmera kapacitu baterky a ked ma baterka uz len polovicnu kapacitu tak ti bude pisat "100%" uz pri tej polovicnej kapacite :)
Tam v tom programe si mozes aj pozret ci nemas nastavene nejake obmedzenie nabijania (nejake dementne "setriace" mody)