@sammalik, Its installed this morning, So it will take few days to observe... But its small in size, silent and intelligent UPS with good charging speed...I consulted lot of people regarding that...There are two best options
1- Find some local UPS manufacturer who can provide you warranty and good support service. If you like I can refer a manufacturer who provide two year complete warranty of his UPS at home service. (economical Solution)
2- Go for some branded/company made UPS... An expert told me no brand remain constant, Every brand has some good and bad reviews... He advised to stay away from HOMAGE which has lot of complaints this season and have pathetic support. So options left APC (the real king), Systek and Cyberpower
A) APC refurbished/secondhand American UPS... No.1 & no match in quality. But problem is: It require double UPS wiring and second draw back is there is no Warranty available.
B) Systek provide free home delivery and installation service, They have standard model which are nicely built (smart & silent) plus they have proper complaint center and field staff and provide good support. Top banks in Pakistan use Systek in their branches
Batteries: This season experts are suggesting AGS/Phoenix Or Volta (which is short in market).
No matter from where you purchase UPS, Always make sure you get good support service.