how to shut down computer but not battery?

[mrm]

Using powerchute personal edition for APC 900M. Configured to hibernate PC after 5 minutes of lost power, which works great. But I want the battery power to stay on afterwards, since there are low power devices hooked up that I want to keep on as long as possible (modem, raspberry pi, wifi) and even should be able to remotely wake the PC again in a pinch.

Is there a way to disable going into "battery sleep mode" after shutting down the computer? Any way to accomplish this?

[BillP]

@mrm 

Not while running PowerChute. PowerChute is designed this way to provide the automatic starting of the OS when AC has been restored. For that to happen the UPS must cut output - power cycle.

You can uninstall PowerChute and use the Windows power options to power off the OS when the UPS switches to battery. The power options will not command the UPS off. See Schneider Electric FA159653 

NOTE: If the UPS does not power cycle, and AC is restored before the battery drains completely the computer will require manual intervention to restart. There will be no auto-start.

Also, if the battery drains completely the UPS may require manual intervention restart it when AC is restored. It will not auto-start. 

[mrm]

Thanks for your reply. Interestingly, I tried reverting to the windows driver and found that when it is on battery power and does a shutdown or hibernate (manually or through power options timeout), the UPS still turns off. I'm not sure if there's a way to change this behaviour, but it does seem built into Windows now (contrary to "popular" belief?).

So is there any advantage to running Powerchute now, besides having more detailed info about previous power events and supporting serial UPSs? Are the settings to tweak the voltage and sensitivity only accessible through Powerchute or is there a native MS way to control them? Are they saved within the UPS in non-volatile memory or is Powerchute needed to maintain them?

Thanks