iRobot Mint 5200 - Manual (Page 11)

PAGE 11
The NorthStar Navigation Cube
The Cube uses 2 C batteries. The battery door can be found on the bottom of
the Cube.
Please dispose of all batteries properly
by finding a recycling resource near you.
Charging Indicators
Power Button
Red pulsing light: Battery charging
Blue solid light: Battery charged
(While Plugged In)