Your MX Ergo trackball is rechargeable. A full charge gives up to four months of battery life. 

To charge your trackball: 

• Connect one end of the provided charging cable to the micro-USB port on the front of the trackball, as shown below, and the other end to a USB power source. 

  

  A minimum of charging for one minute gives you enough power for a full day of use. 

The battery LED pulses red when MX Ergo needs to be recharged. While charging, the LED will blink green and then will steadily glow green when fully charged.

NOTE: You can also get on-screen notifications for your battery. See Check MX Ergo trackball battery status for more information.