Notebook Hardware and Upgrade Questions

Hi

I received my Envy x360 13 in the mail this week. Setup and everything worked fine, but the first thing I noticed was how short the battery life was. HP's product page claims up to 11 hours for the Ryzen CPU models, and I expected somewhere between 5 and 7 hours of actual use. However, doing just some basic web browsing and other non-intensive programs such as Word (not even playing video), I've been getting under 4 hours of battery life, with the battery going from 100% to 66% (displayed 75% before I ran a battery check) within the span of an hour and a half. By no means was I expecting a massive battery life considering the size of the laptop, but at this rate it would barely last through two classes which is frankly unacceptable. This is with a steady wifi connection, the screen brightness at 25% or 50%, battery saver on, and the battery options set to a balanced power plan through Windows and the optimized option in the HP Command Center.  I've already run a battery test that came up with "passed" and have installed the latest BIOS I could find.

I am extremely disappointed by this, as I would really like to love this laptop otherwise, but the awful battery life. especially when compared to HP's claims, makes it completely unusable for anyone.

Edit: I reinstalled the battery ACPI driver and that has helped a bit but still within an hour and a half the battery level has dropped to under 70% (battery saver on, 25% brightness, just drawing and doing some light web browsing.)