An uninterruptible power supply (UPS) once made by Borri UPS systems of Italy. Many BEST UPS are still out there reaching the end of their life. UPS maintenance can still be carried by UPS engineers from PowerContinuity Maintenance division. For a UPS to be the best it needs UPS maintenance, regularly serviced and recorded. BEST FERRUPS are UPS systems smaller than T2000 UPS systems.