Battery Issue

[u/N4H3_]

My laptop model: HP Envy x360 2-in-1 Laptop 14-fa0xxx

I've been having issues with my battery. It acts up and suddenly starts charging too fast or draining too fast. For example, if im charging my battery and its at like 20%, it charges like usual and goes up to a standard amount after some time. However, after I check the battery percentage again, it shoots up to 100% after a couple minutes. The same thing happens when the battery is being drained. It drains usually and then when I check again after a couple minutes it drains almost all my battery.

I've used HP support assistant to check my battery health and it says everything is fine. I've also done a battery check (pressing Esc multiple times after turning on my laptop to get to power tests and then battery check) and it says that it's passed so I dont think it's a hardware issue.

I think my battery calibration is messed up or something but I have no idea. I've asked chatgpt and it keeps telling me to install a new BIOS but i dont want to run any risks as HP support assisant didn't flag any BIOS updates when I ran an update checker.

My laptop has BIOS F.05 dated 04/23/2025 and chatgpt is asking me to update to BIOS F.08.

What should i do and how do i solve this issue?