what is a ups power supply
A battery backup, or uninterruptible power supply (UPS), is primarily used to provide a backup power source to important desktop computer hardwar e components.In most cases, those pieces of hardware include the main computer housing and the monitor.mportant Battery Backup Facts. In addition to acting as a backup when the power goes out, most battery backup devices also act as power conditioners by ensuring that the electricity flowing to your computer and accessories is free from drops or surges.