About this app
UPS backup runtime calculator. Enter load in kW, battery voltage, amp-hours, and inverter efficiency. Calculates backup runtime in minutes, load amps, battery capacity in watt-hours, and usable energy at 80% depth of discharge. Built for data center engineers and UPS system designers.
Latest release
What’s New
Added a More Pro Tools section to discover related field calculators.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Oct 2, 2026 · 7:51 PM $1.99
Screenshots
