Start by taking out the battery and charger. No power should be connected.

Unscrew the 4 Phillips #1 screws marked in the photo.

This screw is hidden under the Warranty void sticker!

All screws are the same length, so don't worry about mixing them up

Use a spudger or your finger to gently but firmly open the cover.

It's stuck in there with clips, so be a little careful. (Remember; If you feel like you're using too much force, you probably are).