A clean robot vacuum makes a bigger difference than you'd think. Here's the most effective method, plus the mistakes most people make.
Empty the dustbin into the trash after every cleaning cycle. A full bin reduces suction.
Tap the filter against the trash can to remove debris. Wash washable filters with water and let dry. Replace as needed.
Remove the main brush and side brushes. Cut away tangled hair with scissors. Clean with a brush.
Wipe the sensors and charging contacts with a soft dry cloth. Dirty sensors cause navigation issues.
Wipe the wheels and pull out any debris stuck in them.