Lenovo ThinkCentre M720t User Manual And Hardware Maintenance Manual page 24

Figure 17. Closing the battery compartment cover
Figure 18. Pushing the power switch to the on position
Notes:
• The green LED indicates that the mouse is ready for use.
• The flashing amber LED indicates a low battery level.
• Push the power switch to the off position when you are not using the mouse to extend the battery life.
• After disconnecting the USB dongle from your computer, store it in the wireless mouse compartment
or in the wireless keyboard compartment.
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ThinkCentre M720t User Guide and Hardware Maintenance Manual