RasPi /
UPS
- https://www.youtube.com/watch?v=m20o3P-S5s8
- https://juice4halt.com/calculation
- https://forums.raspberrypi.com/viewtopic.php?t=50470
- https://forums.raspberrypi.com/viewtopic.php?f=37&t=48455&p=379280#p379280
- https://forums.raspberrypi.com/viewtopic.php?t=39059
- https://raspberrypi.stackexchange.com/questions/101509/is-there-a-way-to-unplug-the-raspberry-pi-safely-without-shutting-down
- https://www.youtube.com/watch?v=NsTAyD2i3rc
- https://www.youtube.com/watch?v=j5Bv8r3TVPM