Razer Blade 15 Advanced 2020: Battery life dropped from 5h to barely 2h

Hi, When i bought my Blade 15 middle 2020, it was able to last around 5 hours on battery life. But in the last 2 weeks, it just suddenly dropped to last barely 2 hours. I have googled online for solutions and tried them all, like recalibrating the battery by using the battery until it shutdowns and then giving it a full charge before using it again. I have also tried uninstalling the device driver for the battery and recalibrating it again. But it still only lasts less than 2 hours. Since i got the laptop, i have taken very good care of the batteries. I do not leave it charging overnight, i unplug it when fully charged and not in use. I use it unplugged occasionally. There is no visible bloating in my laptop. Anybody have the same issues? And any solutions?