Warning: Swollen or cracked batteries can be hazardous to humans due to fumes or potential fire. If you feel unsafe at anytime completing this guide, put your device in a fireproof container and take it to a replacement professional.

Flip the iRobot Roomba i7 so that the underside is facing upwards.

Using a Phillips #1 screwdriver, loosen the following screws:

6.27mm-screw in the center of the side brush.

Five 6.24mm-screws on the bottom cover.