POWERCHUTE PERSONAL
For more control over your APC UPS, you can download the PowerChute Personal software from the official product website.
From the monitor system tab, you can check the performance of the UPS, current status, perform a self-test and check your energy savings.
Inside the configuration tab you have the ability to enable/disable notifications, send power quality information back to APC, set the UPS running time for your system, change the sensitivity of the UPS (i do recommend setting this to high if the electrical grid is not the best) and finally you can set the voltage range manually.
Finally, from the help and support tab you can seek help by contacting APC and check the technical data (this time over the Back-UPS Pro BR1600SI was recognized as Back-UPS RS 1600SI).