Logitech M505 User Manual page 15

2. Set the on/off switch to the "OFF" position. This will allow the two (2) AA batteries to last
longer before needing to be replaced.
NOTE:
It's recommended to turn the mouse off whenever you're not
using it. This will allow the two (2) AA batteries to last longer
before needing to be replaced.
3. Remove the USB transceiver from the computer's USB drive by gripping it between your thumb
and forefinger, and gently pulling it outward. This will allow you to store the transceiver and
minimize the risk of it being damaged.
You have now safely disconnected your transceiver from your computer.
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