Data and Reference
The numbers you need when planning backup power, in one place. Each table explains where its figures come from and how to use them.
Good backup power decisions start with good inputs. The tables in this section are built to answer the questions that come up repeatedly while sizing, buying and maintaining a UPS: how much does this device really draw, which battery fits this unit, which topology suits this job, and which plug does this size need.
How to use these tables
- Device power draw database: typical idle, normal and peak watts for common equipment, with a verdict on whether each belongs on UPS battery power. The sizing calculator uses the same data.
- UPS battery reference table: the sealed lead-acid block sizes, terminal types and voltages that most small UPS units use.
- UPS topology comparison table: standby, line-interactive and online double-conversion side by side across more than a dozen attributes.
- Plug and receptacle reference: NEMA and IEC connectors, their ratings, and which UPS sizes use them.
Figures are typical ranges compiled from manufacturer specifications, standards and widely published measurements. Your own equipment can differ, sometimes a lot, so measure when it matters. See how to measure power draw and our editorial standards for how we compile and update data.
All Data & Reference guides
Data & ReferenceDevice Power Draw DatabaseTypical and peak watts for 70+ devices, with a verdict on whether each belongs on UPS battery power.Data & ReferenceUPS Battery Reference TableTypical sealed lead-acid block sizes, dimensions, terminals and string voltages used in UPS units.Data & ReferenceUPS Topology Comparison TableThe three UPS designs side by side across protection, efficiency, noise, cost and best use.Data & ReferencePlug and Receptacle Reference for UPS SystemsNEMA and IEC connectors, their ratings and which UPS sizes need which circuit.