Toshiba SATELLITE M500 - Manual (Page 171)

171 Utilities
USB Sleep and Charge Utility
Enabling USB Sleep and Charge
This utility can be used to enable or disable the “USB Sleep and
Charge function” group.
Check the check box for the group to enable the “USB Sleep and
Charge function” for the USB port assigned to that group. In the
default state, the group is disabled.
Power supply mode settings
There are several "USB Sleep and Charge function" modes.
The default setting is Mode-1. Select one of the other modes in the
drop-down menu of the USB Sleep and Charge window if the
charge function cannot be used in Mode 1.
In this situation, select a different mode. “USB Sleep and Charge
function” may not be functional with some connected external
devices even if the appropriate group is selected. In this situation,
uncheck the check box for the group and discontinue using this
function.
Battery settings
This utility can be used to specify the lower limit of remaining
battery life for USB Sleep and Charge. Move the slider bar to
specify the lower limit. If the remaining battery life falls below the
setting, the "USB Sleep and Charge function" will be stopped.