Here are some of the best Uninterruptible Power Supplies (UPS) of 2023:

• CyberPower CP1500PFCLCD. This is a great all-around UPS that is perfect for home and office use. It has a 1500VA/865W capacity, which is enough to power most computers and peripherals. It also features a pure sine wave output, which is important for sensitive electronics.
  

  CyberPower CP1500PFCLCD UPS
• APC BR1500G. This is another great option for home and office use. It has a 1500VA/865W capacity and a pure sine wave output. It also features a number of advanced features, such as a network management card and a battery health indicator.
  

  APC BR1500G UPS
• Tripp Lite AVR750U. This is a good budget-friendly option for home and office use. It has a 750VA/450W capacity, which is enough to power most computers and peripherals. It also features a line-interactive topology, which provides some protection against power surges and brownouts.
  

  Tripp Lite AVR750U UPS
• APC Back-UPS Pro 1500VA. This is a good option for gamers and other users who need a UPS with a long runtime. It has a 1500VA/865W capacity and can provide up to 90 minutes of runtime on a full battery. It also features a number of gaming-specific features, such as a low-battery notification and a power-fail simulation mode.
  

  APC Back-UPS Pro 1500VA UPS
• CyberPower EC850LCD. This is a good option for users who need a compact and lightweight UPS. It has an 850VA/462W capacity and can provide up to 45 minutes of runtime on a full battery. It also features a number of advanced features, such as a LCD display and a network management card.
  

  CyberPower EC850LCD UPS

When choosing a UPS, it is important to consider the following factors:

• The size of your load. This is the amount of power that your devices will draw when they are running.
• The runtime that you need. This is the amount of time that you need the UPS to keep your devices running in the event of a power outage.
• The features that you need. Some UPSs have features such as a pure sine wave output, a network management card, or a battery health indicator.

Remember, technology is continually evolving, and new UPS models may be released in the future with improved features and capabilities. To get the most up-to-date information on the best UPS units in 2023, I recommend checking specialized tech websites, reviews, and comparing product specifications from various manufacturers.