Razer Blade 17" (2021) RZ09-0406 Battery Replacement

Flip the notebook over and remove the 12 screws (RED) on the bottom cover. I didn't need any prying tools, as my battery was bloated and lifted the cover for me. If prying anywhere I would recommend the middle near the hinge (Yellow) as there are no heatsinks (Magenta) that could get bend by prying.

Unplug the battery connector (BLUE) and remove the fan cover sticker (GREEN). Then proceed with unscrewing the 12 screws (RED). I personally never loosen any connectors that aren't necessary, so I left the fan connecter (2x YELLOW) untouched as you can just lift it up as shown in the second image.

Remove the battery and be careful to not pull on the fan connector cable. After that insert new battery (order replacement by the part number. Mine was RC30-0287 for example) and do everything backwards.

Its my first and probably last guide, I hope it helped someone at least