Hello everybody,

root@beaglebone:/# uname -a
Linux beaglebone 4.4.9-ti-r25 #1 SMP Thu May 5 23:08:13 UTC 2016 armv7l 
GNU/Linux

My board is powered by 5V and is connected to a battery for use by backup
/ups/safe_shutdown. When I take off the power supply, the board goes off in 
a few seconds, 
without switching to battery.
I can not understand why not switch to battery.
I note that the board works perfectly if powered only by a battery.
the problem arises only when there is no 5V.
I can not find the service that manages the shutdown.

Is there a way to avoid this behavior by software??

Thanks

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