Continuity baseline

Size the outage path before choosing the box.

Enter the load that must remain on, the useful operating window, and the reserve needed for a safe stop. The result separates delivered energy from nominal battery capacity.

Home power continuity

Reserve enough power to keep the right things alive—and stop the rest safely.

Model the critical load, the runtime you actually need, and the reserve required to shut down storage or services cleanly before comparing a UPS or battery system.

View assumptions and sources →

The values below are editable planning baselines. Change the few inputs you know; open Advanced assumptions only when they change your decision.

Start from a typical setup, then adjust to your numbers.

Continuity profile

Critical continuous load (W)

Estimate from your devices (optional)

Tick what stays on during an outage — the watts add up into the load above. Typing your own number clears the ticks.

Required operating time (hours)

Safe-shutdown reserve (minutes)

Advanced assumptionsThese assumptions make the energy calculation conservative. Replace them only with documented or measured values for the final equipment path.

Conversion efficiency (%)

Usable battery share (%)

Critical continuity load——

Recommended continuous output——

Operating energy——

Shutdown reserve energy——

Minimum nominal battery——

Continuity state——

Load vs battery at a glance

Copies the watt and Wh numbers as plain text for price comparison.

An automatic safe-shutdown path is availableFor storage or self-hosted services, verify that the actual power event triggers a controlled shutdown before the battery reserve is exhausted.

Next decision

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Continuity brief

Compare equipment against the boundary, not a marketing runtime claim.

Use the required continuous watts and nominal battery Wh as a starting point, then measure runtime and safe shutdown on the installed path.

Next decision

Record power-event test Plan NAS recovery Plan longer outages

Plan tools

Keep this useful version close, shareable, and easy to revisit.

Reset inputs