It is one of the best UPSs I have had and I will buy APC Smart UPS again, but a larger one with more than 2,000VA.
I have connected:
1. Desktop computer.
2. Laptop computer.
3. Multifunction printer.
4. Television.
5. Sound system.
6. (Small devices such as router, tablet chargers, mobile phones, and others).
I change the batteries every year because we have power outages every week, ranging from seconds to hours...
It has saved many computers from voltage drops and surges.
The power in my area fluctuates between 210 volts in the morning and 240 volts in the evening.

For the past two and a half years, I have had my main PC connected to it with the monitor. It has saved me several times as there are frequent voltage drops and power outages in my area. In normal computer operation, it has a battery life of 40 to 60 minutes. It is quiet but bulky and quite heavy (approximately 18 Kg).

For 8 years, a set of batteries and not even mom's. I had power when others didn't even have candles!!! After 9 years of continuous operation, it stopped "seeing" the batteries. The repair is as good as new.