There should be no ill effects by turning off your UPS. I do this every night. The batteries should not run down. I have had a UPS lying around for a couple of months disconnected and then started to use it whithout any problems.
OnePlus 5T review: Hands-on
Illustrator Andrés Lozano on his improv line work, brazen use of colours & hand sketching
iPhone X review
Comment envoyer gratuitement des gros fichiers ?