Sony PRS-900 Manual

20

The Reader has a power management feature to avoid 

unnecessary battery consumption. At purchase, power 

management is activated. Power management 

operates as follows:
 After 60 minutes of inactivity, the Reader enters 

sleep mode automatically while the battery power is 

consumed slightly.

 After 5 days of inactivity, the Reader automatically 

shuts down and stops consuming the battery power.

 If the battery power is at a low level, the Reader will shut down 

after 60 minutes of inactivity.

Hints

 You can activate/deactivate power management from “Power 

Management” in the “Settings” menu (  

 In addition to power management feature, you can save the 

battery power using “Wireless Standby” (  

 The Reader does not enter sleep mode after 60 minutes of 

inactivity even if “Power Management” is set to “On,” when:

– connected to the computer using the supplied USB cable

– connected to an AC outlet

– playing audio files or a slideshow

 The Reader does not wake up from sleep mode when 

receiving periodicals by auto delivery (  

). Therefore, if 

other operations are not performed for 5 days, the Reader will 

automatically shut down by power management.