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An uninterruptible power supply (UPS) is your last line of defence against power outages, surges, and sags. But choosing the right UPS is not as simple as picking one off the shelf. This guide walks you through calculating your actual power requirements, understanding UPS types, and selecting a unit that will keep your systems running when the mains go down.

From affordable Back-UPS for home offices to enterprise Smart-UPS Online for data centres — explore every APC UPS product line with real specs, pricing, and recommendations to find the perfect power protection for your needs.