What size Uninterrupted Power Supply?

The size of an Uninterruptible Power Supply (UPS) depends on the total wattage of the devices you plan to connect. To determine the appropriate size, calculate the combined wattage of all equipment, then choose a UPS that can handle at least 20-30% more than that total to ensure sufficient capacity. Additionally, consider the desired runtime during a power outage, as larger batteries provide longer backup times. It's also advisable to select a UPS with a good efficiency rating for optimal performance.