The Mouse LED does not flash in the charging cradle and the mouse does not charge.

In this state, the mouse does not respond to any button press, not even the “connect” button on the mouse. This is an indication that the mouse battery is low. Place mouse on charging cradle (It takes 5 hours to completely recharge battery), remove mouse, and press the connect button on the mouse. A quick blue flash should appear on the mouse – indicating the mouse has started up and is active. If the mouse was placed on charger for five hours and was previously connected, a three level-amber flash will appear quickly followed by an active blue LED.