BV800I-GR

[Gnat]

Hello. I have two related questions. First. Please tell me how long the UPS can be left connected to the wall outlet with the equipment turned off ( ON/OFF button is "OFF" )?
Second question. I'm going on a business trip for a week or two. What should I do correctly:
1. Turn off the UPS via the button and that’s it. (I know that the battery will still charge. But excess heating occurs and I am afraid of overcharging the battery, although I am sure there is protection against this in the circuit).
2. Turn off the UPS via the button and disconnect it from the wall outlet.
3. Turn off the UPS via the button, disconnect it from the wall outlet and disconnect the battery.