I would like at least 1.5hrs of backup time.
Hi Afnan,
- First find out what is your power draw
-Power draw varies with workload, most accurate way to measure would be with a watt meter
-If you don't have a Watt Meter then calculate your PC's wattage from this
PSU Calculator according to your FULL specs
-Add the wattage of your monitor (should be on its back sticker)
-Use this
UPS Selector to find out what's best suited for your load/back-up time
-APC are one of the best UPS makers for sensitive electronics like PCs but they have a vast line-up from cheap home use to professional grade.
-There are 3 basic types of UPS
(read here)
-Offline
-Line-Interactive
-Online
-Your first requirement would be to get a UPS that can take up your load and provide required back-up time, second; If you can afford it, go for Online UPS as explained in "read here"
I will share my experience for reference, maybe it will help you decide. I have an APC SMT1500i (1000 Watts / 1kW) (Online, Pure Sine Wave) (5
button version) (24 Volts) (2 Internal OEM Batteries) on a Ryzen 3900X/GTX 1070 PC with a 55" LED TV and some routers connected to it and my power draw is from 284 Watts at normal browsing to over 600 Watts at full load. Backup time at 284 Watts is 51 mins and at 600 Watts is around 17 mins.
If you want more backup time than you can go for SMT2200i which is a 2000 Watts / 2kW, 48V UPS (4 batteries) or you can get a modded SMT1500i which can take on any external Lead-Acid / Dry Cell batteries. Modded APC UPS are very common, the batteries that go inside the APC UPS are Dry Cell batteries and are around Rs.5000/- EACH, for that amount of money you can get higher capacity external batteries.
I got my APC SMT1500i about 2 years back for around 18K + batteries for around 9.6K. These are used, imported UPS which are refurbished OR even repaired here to be sold, so beware and buy from a known person.
Hope this helps, best of luck.