iRobot Roomba Combo Essential RVG-Y1 Owner's Manual page 9

Charging
EN
NOTE: Your robot comes with a partial charge, but we recommend
that you charge the robot for 4 hours prior to starting the first
cleaning job.
8 For more information, visit global.irobot.com
Power icon indicator while charging
Solid white: fully charged
Pulsing white: charging
Place the robot on the Charging dock to activate the battery.
If your robot needs to recharge mid-clean, the cleaning job will be canceled and
it will return to its Charging dock.
The robot uses a small amount of power whenever it is on the charging station.
You can put the robot in a further-reduced power state when not in use. For
instructions and more details on this Reduced Power Standby Mode, refer to the
FAQ page on our website.
For long-term storage, turn off the robot by removing it from the charging station
and holding down for 9 seconds. Store the robot in a cool, dry place.