UPS Battery Sizing Calculator

UPS Battery Sizing Calculator is a compact, reliable app for UPS dealers, distributors, service engineers and customers to size UPS systems and batteries quickly and accurately. The tool combines Basic and Expert modes in one interface to deliver fast load sizing and detailed battery calculations including AH, runtime, current, wire size and breaker sizing. It supports single-phase (1Ph/1Ph) and both types of three-phase configurations (3Ph/1Ph and 3Ph/3Ph).

In addition to sizing tools, the app includes technical reference content — UPS basics, types, operation modes, configurations, battery systems (series/parallel), precautions, battery dimensions for major brands, PVC/copper/DC cable current ratings, and IP protection guidelines. Built for fieldwork and design, this extension streamlines power-backup planning and helps professionals and customers make informed UPS & battery decisions.